### R.m4 -- extra macros for configuring R		-*- Autoconf -*-
###
### Copyright (C) 1998-2002 R Core Team
###
### This file is part of R.
###
### R is free software; you can redistribute it and/or modify it under
### the terms of the GNU General Public License as published by the Free
### Software Foundation; either version 2 of the License, or (at your
### option) any later version.
###
### R is distributed in the hope that it will be useful, but WITHOUT ANY
### WARRANTY; without even the implied warranty of MERCHANTABILITY or
### FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
### License for more details.
###
### You should have received a copy of the GNU General Public License
### along with R; if not, you can obtain it via the World Wide Web at
### `http://www.gnu.org/copyleft/gpl.html', or by writing to the Free
### Software Foundation, 59 Temple Place -- Suite 330, Boston, MA
### 02111-3307, USA.

### * General support macros

## R_ARG_USE
## ---------
AC_DEFUN([R_ARG_USE],
[if test "${withval}" = no; then
  use_$1=no
else
  use_$1=yes
fi
])# R_ARG_USE

## R_SH_VAR_ADD(VARIABLE, VALUE, [SEPARATOR = " "])
## ---------------------------------------------------
## Set sh variable VARIABLE to VALUE if empty (or undefined), or append
## VALUE to the value of VARIABLE, separated by SEPARATOR.
## Currently, safe only if all arguments are literals.
## Useful mostly when we do not know whether VARIABLE is empty or not.
## Should maybe also have a fourth argument to control whether adding
## happens by appending (default) or prepending ...
AC_DEFUN([R_SH_VAR_ADD],
[separator="$3"
test -z "${separator}" && separator=" "
if test -z "${[$1]}"; then
  $1="$2"
else
  $1="${[$1]}${separator}$2"
fi])# R_SH_VAR_ADD

### * Programs

## R_PROG_AR
## ---------
AC_DEFUN([R_PROG_AR],
[AC_CHECK_PROGS(AR, [${AR} ar])
: ${ARFLAGS="rc"}
AC_SUBST(ARFLAGS)
])# R_PROG_AR

## R_PROG_INSTALL
## --------------
## Find a good install program.
## We like to provide INSTALL in the top-level Makeconf.
## Hence, if AC_PROG_INSTALL ends up with the 'tools/install-sh' script,
## we need to ensure a relative path (i.e., in case we build in srcdir)
## gets prefixed by top_srcdir.  (This would not be necessary if we had
## '@INSTALL@' in each Makefile.in, but we prefer to share ...)
AC_DEFUN([R_PROG_INSTALL],
[AC_REQUIRE([AC_PROG_INSTALL])
case "${INSTALL}" in
  [[\\/]]* | ?:[[\\/]]* ) # absolute
    ;;
  *)
    INSTALL="\$\(top_srcdir\)/tools/install-sh -c"
    ;;
esac
case "${host_os}" in
  hpux*)
    ## On some versions of HP-UX (seen on both 10.20 and 11.0) we end up
    ## a broken install (seen in /opt/imake/bin) which has the default
    ## permissions wrong (PR#2091).  Let's just always use install-sh on
    ## HP-UX.
    INSTALL="\$\(top_srcdir\)/tools/install-sh -c"
    ;;
esac
])# R_PROG_INSTALL

## R_PROG_PAGER
## ------------
AC_DEFUN([R_PROG_PAGER],
[AC_PATH_PROGS(PAGER, [${PAGER} less more page pg], false)
if test "${PAGER}" = false; then
  warn_pager="I could not determine a pager"
  AC_MSG_WARN([${warn_pager}])
fi
])# R_PROG_PAGER

## R_PROG_PERL
## -----------
AC_DEFUN([R_PROG_PERL],
[AC_PATH_PROGS(PERL, [${PERL} perl])
if test -n "${PERL}"; then
  _R_PROG_PERL_VERSION
else
  ## <NOTE>
  ## Need a full path for '@PERL@' substitutions when starting Perl
  ## scripts with a line of the form '#! FOO'.
  AC_PATH_PROGS(FALSE, false)
  PERL="${FALSE}"
  ## </NOTE>
fi
if test "${r_cv_prog_perl_v5}" = yes; then
  NO_PERL5=false
else
  warn_perl5="you cannot build the object documentation system"
  AC_MSG_WARN([${warn_perl5}])
  NO_PERL5=true
fi
AC_SUBST(NO_PERL5)
])# R_PROG_PERL

## _R_PROG_PERL_VERSION
## --------------------
## Building the R documentation system (Rdconv and friends) requires
## Perl version 5.004 or better.
## Set shell variable r_cv_prog_perl_v5 to 'yes' if a recent enough
## Perl is found, and to 'no' otherwise.
AC_DEFUN([_R_PROG_PERL_VERSION],
[AC_CACHE_CHECK([whether perl version is at least 5.004],
                [r_cv_prog_perl_v5],
[if ${PERL} -e 'require 5.004 or exit 1'; then
  r_cv_prog_perl_v5=yes
else
  r_cv_prog_perl_v5=no
fi])
])# _R_PROG_PERL_VERSION

## R_PROG_TEXMF
## ------------
AC_DEFUN([R_PROG_TEXMF],
[AC_REQUIRE([R_PROG_PERL])
AC_PATH_PROGS(DVIPS, [${DVIPS} dvips], false)
AC_PATH_PROGS(TEX, [${TEX} tex], false)
AC_PATH_PROGS(LATEX, [${LATEX} latex], false)
if test -z "${ac_cv_path_TEX}" ; then
  warn_dvi="you cannot build DVI versions of the R manuals"
elif test -z "${ac_cv_path_LATEX}"; then
  warn_dvi="you cannot build DVI versions of all the help pages"
fi
if test -n "${warn_dvi}"; then
  AC_MSG_WARN([${warn_dvi}])
fi
AC_PATH_PROGS(MAKEINDEX, [${MAKEINDEX} makeindex], false)
AC_PATH_PROGS(PDFTEX, [${PDFTEX} pdftex], false)
AC_PATH_PROGS(PDFLATEX, [${PDFLATEX} pdflatex], false)
if test -z "${ac_cv_path_PDFTEX}" ; then
  warn_pdf="you cannot build PDF versions of the R manuals"
elif test -z "${ac_cv_path_PDFLATEX}" ; then
  warn_pdf="you cannot build PDF versions of all the help pages"
fi
if test -n "${warn_pdf}"; then
  AC_MSG_WARN([${warn_pdf}])
fi
AC_PATH_PROGS(MAKEINFO_CMD, [${MAKEINFO} makeinfo])
## This test admittedly looks a bit strange ... see R_PROG_PERL.
if test "${PERL}" = "${FALSE}"; then
  AC_PATH_PROGS(INSTALL_INFO, [${INSTALL_INFO} install-info], false)
else
  INSTALL_INFO="\$(PERL) \$(top_srcdir)/tools/install-info.pl"
  AC_SUBST(INSTALL_INFO)
fi
: ${R_RD4DVI="ae"}
AC_SUBST(R_RD4DVI)
: ${R_RD4PDF="ae,hyper"}
AC_SUBST(R_RD4PDF)
])# R_PROG_TEXMF

## R_PROG_MAKEINFO
## ---------------
AC_DEFUN([R_PROG_MAKEINFO],
## This used to be part of R_PROG_TEXMF, where it really belongs.
## Unfortunately, AM_PROG_LIBTOOL unconditionally overwrites MAKEINFO
## by makeinfo or missing.  To allow users to pass a MAKEINFO setting to
## configure, we thus have to run R_PROG_TEXMF before AM_PROG_LIBTOOL,
## save the result to something not overwritten (hence MAKEINFO_CMD),
## and finally set MAKEINFO according to our needs.
[AC_REQUIRE([R_PROG_TEXMF])
AC_REQUIRE([AM_PROG_LIBTOOL])
if test -n "${MAKEINFO_CMD}"; then
  _R_PROG_MAKEINFO_VERSION
fi
if test "${r_cv_prog_makeinfo_v4}" != yes; then
  warn_info="you cannot build info versions of the R manuals"
  AC_MSG_WARN([${warn_info}])
  MAKEINFO=false
else
  MAKEINFO="${MAKEINFO_CMD}"
fi
])# R_PROG_MAKEINFO

## _R_PROG_MAKEINFO_VERSION
## ------------------------
## Building the R Texinfo manuals requires Makeinfo v4 or better.
## Set shell variable r_cv_prog_makeinfo_v4 to 'yes' if a recent
## enough Makeinfo is found, and to 'no' otherwise.
AC_DEFUN([_R_PROG_MAKEINFO_VERSION],
[AC_CACHE_CHECK([whether makeinfo version is at least 4],
                [r_cv_prog_makeinfo_v4],
[makeinfo_version=`${MAKEINFO_CMD} --version | \
  grep "^makeinfo" | sed 's/[[^)]]*) \(.\).*/\1/'`
if test -z "${makeinfo_version}"; then
  r_cv_prog_makeinfo_v4=no
elif test ${makeinfo_version} -lt 4; then
  r_cv_prog_makeinfo_v4=no
else
  r_cv_prog_makeinfo_v4=yes
fi])
])# _R_PROG_MAKEINFO_VERSION

## R_PROG_BROWSER
## --------------
AC_DEFUN([R_PROG_BROWSER],
[if test -z "${R_BROWSER}"; then
  AC_PATH_PROGS(R_BROWSER, [netscape mozilla galeon kfmclient opera gnome-moz-remote open])
fi
if test -z "${R_BROWSER}"; then
  warn_browser="I could not determine a browser"
  AC_MSG_WARN([${warn_browser}])
else
  AC_MSG_RESULT([using default browser ... ${R_BROWSER}])
fi
AC_SUBST(R_BROWSER)
])# R_BROWSER

## R_PROG_PDFVIEWER
## ----------------
## Try to determine a PDF viewer.
## According to Jeff Gentry <jgentry@jimmy.harvard.edu>, 'acroread4' is
## the FreeBSD acroread port.
AC_DEFUN([R_PROG_PDFVIEWER],
[AC_PATH_PROGS(R_PDFVIEWER,
               [${R_PDFVIEWER} acroread acroread4 xpdf gv gnome-gv kghostview open])
if test -z "${R_PDFVIEWER}"; then
  warn_pdfviewer="I could not determine a PDF viewer"
  AC_MSG_WARN([${warn_pdfviewer}])
fi
AC_SUBST(R_PDFVIEWER)
])# R_PDFVIEWER

### * C compiler and its characteristics.

## R_PROG_CPP_CPPFLAGS
## -------------------
## In case of gcc, check whether the C preprocessor complains about
## having '/usr/local/include' in its header search path (no matter how
## it came there).  GCC 3.1 and 3.2 (at least) give warnings about
## 'changing search order for system directory "/usr/local/include" as
## it has already been specified as a non-system directory' which are at
## least quite annoying.
## <NOTE>
## We currently do not distinguish whether '/usr/local/include' was
## added as the R default, or by an explicit CPPFLAGS arg to configure.
## If we wanted to, we should change
##     : ${CPPFLAGS="-I/usr/local/include"}
## in 'configure.ac' by something like
##     : ${CPPFLAGS=${r_default_CPPFLAGS="-I/usr/local/include"}}
## and test whether r_default_CPPFLAGS is non-empty.
## </NOTE>
AC_DEFUN([R_PROG_CPP_CPPFLAGS],
[AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_PROG_CPP])
if test "${GCC}" = yes; then
  AC_LANG_PUSH(C)
  AC_LANG_CONFTEST([AC_LANG_PROGRAM()])
  if ${CPP} ${CPPFLAGS} conftest.${ac_ext} 2>&1 1>/dev/null | \
      grep 'warning:.*system directory.*/usr/local/include' >/dev/null; then
    CPPFLAGS=`echo ${CPPFLAGS} | \
      sed 's|\(.*\)-I/usr/local/include *\(.*\)|\1\2|'`
  fi
  rm -f conftest.${ac_ext}
  AC_LANG_POP(C)
fi])# R_PROG_CPP_CPPFLAGS

## R_PROG_CC_M
## -----------
## Check whether we can figure out C Make dependencies.
AC_DEFUN([R_PROG_CC_M],
[AC_MSG_CHECKING([whether we can compute C Make dependencies])
AC_CACHE_VAL([r_cv_prog_cc_m],
[echo "#include <math.h>" > conftest.c
## No real point in using AC_LANG_* and ${ac_ext}, as we need to create
## hard-wired suffix rules.
## Another obvious candidate to try is '${MAKEDEPEND-makedepend} -f-'.
## However, this does not work out of the box when srcdir and builddir
## are different, as it creates dependencies of the form
##   ${srcdir}/foo.o: /path/to/bar.h
## Could be made to work, of course ...
## Note also that it does not create a 'conftest.o: conftest.c' line.
## For gcc 3.2 or better, we want to use '-MM' in case this works.
cc_minus_MM=false
if test "${GCC}" = yes; then
  gcc_version=`${CC} -v 2>&1 | grep "^.*g.. version" | \
    sed -e 's/^.*g.. version *//'`
  case "${gcc_version}" in
    1.*|2.*|3.[[01]]*) ;;
    *) cc_minus_MM="${CC} -MM" ;;
  esac
fi
for prog in "${cc_minus_MM}" "${CC} -M" "${CPP} -M" "cpp -M"; do
  if ${prog} conftest.c 2>/dev/null | \
      grep 'conftest.o: conftest.c' >/dev/null; then
    r_cv_prog_cc_m="${prog}"
    break
  fi
done])
if test -z "${r_cv_prog_cc_m}"; then
  AC_MSG_RESULT([no])
else
  AC_MSG_RESULT([yes, using ${r_cv_prog_cc_m}])
fi
])# R_PROG_CC_M

## R_PROG_CC_C_O_LO
## ----------------
## Check whether the C compiler supports '-c -o FILE.lo'.
AC_DEFUN([R_PROG_CC_C_O_LO],
[AC_CACHE_CHECK([whether ${CC} supports -c -o FILE.lo],
                [r_cv_prog_cc_c_o_lo],
[test -d TMP || mkdir TMP
echo "int some_variable = 0;" > conftest.c
## No real point in using AC_LANG_* and ${ac_ext}, as we need to create
## hard-wired suffix rules. 
ac_try='${CC} ${CFLAGS} -c conftest.c -o TMP/conftest.lo 1>&AS_MESSAGE_LOG_FD'
if AC_TRY_EVAL(ac_try) \
    && test -f TMP/conftest.lo \
    && AC_TRY_EVAL(ac_try); then
  r_cv_prog_cc_c_o_lo=yes
else
  r_cv_prog_cc_c_o_lo=no
fi
rm -rf conftest* TMP])
])# R_PROG_CC_C_O_LO

## R_PROG_CC_MAKEFRAG
## ------------------
## Generate a Make fragment with suffix rules for the C compiler.
## Used for both building R (Makeconf) and add-ons (etc/Makeconf).
## NB test -d .libs || mkdir .libs can be run more than once
##    and hence race when a parallel make is used
AC_DEFUN([R_PROG_CC_MAKEFRAG],
[r_cc_rules_frag=Makefrag.cc
AC_REQUIRE([R_PROG_CC_M])
AC_REQUIRE([R_PROG_CC_C_O_LO])
cat << \EOF > ${r_cc_rules_frag}
.c.o:
	$(CC) $(ALL_CPPFLAGS) $(ALL_CFLAGS) -c $< -o $[@]
EOF
if test -n "${r_cv_prog_cc_m}"; then
  cat << EOF >> ${r_cc_rules_frag}
.c.d:
	@echo "making \$[@] from \$<"
	@${r_cv_prog_cc_m} \$(ALL_CPPFLAGS) $< | \\
	  sed -e 's/^\([[^:]]*\)\.o\([[ 	]]\)*:/\1.o \1.lo\2:/' > \$[@]
EOF
else
  cat << \EOF >> ${r_cc_rules_frag}
.c.d:
	@echo > $[@]
EOF
fi
if test "${r_cv_prog_cc_c_o_lo}" = yes; then
  cat << \EOF >> ${r_cc_rules_frag}
.c.lo:
	$(CC) $(ALL_CPPFLAGS) $(ALL_CFLAGS_LO) -c $< -o $[@]
EOF
else
  cat << \EOF >> ${r_cc_rules_frag}
.c.lo:
	@-test -d .libs || mkdir .libs
	$(CC) $(ALL_CPPFLAGS) $(ALL_CFLAGS_LO) -c $< -o .libs/$[*].o
	mv .libs/$[*].o $[*].lo
EOF
fi
AC_SUBST_FILE(r_cc_rules_frag)
])# R_PROG_CC_MAKEFRAG

## R_PROG_CC_FLAG(FLAG, [ACTION-IF-TRUE])
## ---------------------------------------
## Check whether the C compiler handles command line option FLAG,
## and set shell variable r_cv_prog_cc_flag_SFLAG accordingly (where
## SFLAG is a shell-safe transliteration of FLAG).
## In addition, execute ACTION-IF-TRUE in case of success.
AC_DEFUN([R_PROG_CC_FLAG],
[ac_safe=AS_TR_SH($1)
AC_MSG_CHECKING([whether ${CC} accepts $1])
AC_CACHE_VAL([r_cv_prog_cc_flag_${ac_safe}],
[AC_LANG_PUSH(C)
r_save_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} $1"
AC_LINK_IFELSE([AC_LANG_PROGRAM()],
               [eval "r_cv_prog_cc_flag_${ac_safe}=yes"],
               [eval "r_cv_prog_cc_flag_${ac_safe}=no"])
CFLAGS="${r_save_CFLAGS}"
AC_LANG_POP(C)
])
if eval "test \"`echo '$r_cv_prog_cc_flag_'$ac_safe`\" = yes"; then
  AC_MSG_RESULT([yes])
  [$2]
else
  AC_MSG_RESULT([no])
fi
])# R_PROG_CC_FLAG

## R_PROG_CC_FLAG_D__NO_MATH_INLINES
## ---------------------------
## In current glibc, inline version [x86] of exp is broken.
## We fix this by adding '-D__NO_MATH_INLINES' to R_XTRA_CFLAGS rather
## than AC_DEFINE(__NO_MATH_INLINES) as the former also takes care of
## compiling C code for add-on packages.
AC_DEFUN([R_PROG_CC_FLAG_D__NO_MATH_INLINES],
[AC_EGREP_CPP([yes],
[#include <math.h>
#if defined(__GLIBC__)
  yes
#endif
],
              [R_SH_VAR_ADD(R_XTRA_CFLAGS, [-D__NO_MATH_INLINES])])
])# R_PROG_CC_FLAG_D__NO_MATH_INLINES

## R_C_OPTIEEE
## -----------
## Check whether the C compiler needs '-OPT:IEEE_NaN_inf=ON' to
## correctly deal with IEEE NaN/Inf.
## This flag is needed for the native SGI C compiler.
## If needed, add the flag to R_XTRA_CFLAGS.
AC_DEFUN([R_C_OPTIEEE],
[AC_CACHE_CHECK([whether C compiler needs -OPT:IEEE_NaN_inf=ON],
                [r_cv_c_optieee],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <math.h>
#include <ieeefp.h>
int main () {
  double x = 0;
  fpsetmask(0); x = x / x; exit (x != x);
}
]])],
              [r_cv_c_optieee=yes],
              [r_cv_c_optieee=no],
              [r_cv_c_optieee=no])])
if test "${r_cv_c_optieee}" = yes; then
  R_SH_VAR_ADD(R_XTRA_CFLAGS, [-OPT:IEEE_NaN_inf=ON])
fi
])# R_C_OPTIEEE

### * C++ compiler and its characteristics.

## R_PROG_CXX_M
## ------------
## Check whether the C++ compiler accepts '-M' for generating
## dependencies.
AC_DEFUN([R_PROG_CXX_M],
[AC_REQUIRE([R_PROG_CC_M])
AC_CACHE_CHECK([whether ${CXX} accepts -M for generating dependencies],
               [r_cv_prog_cxx_m],
[echo "#include <math.h>" > conftest.cc
## No real point in using AC_LANG_* and ${ac_ext}, as we need to create
## hard-wired suffix rules.  We could be a bit more careful as we
## actually only test suffix '.cc'. 
if test -n "`${CXX} -M conftest.cc 2>/dev/null | grep conftest`"; then
  r_cv_prog_cxx_m=yes
else
  r_cv_prog_cxx_m=no
fi])
])# R_PROG_CXX_M

## R_PROG_CXX_C_O_LO
## -----------------
## Check whether the C++ compiler supports '-c -o FILE.lo'.
AC_DEFUN([R_PROG_CXX_C_O_LO],
[cxx_o_lo_rules_frag=Makefrag.cxx
AC_CACHE_CHECK([whether ${CXX} supports -c -o FILE.lo],
               [r_cv_prog_cxx_c_o_lo],
[test -d TMP || mkdir TMP
echo "int some_variable = 0;" > conftest.cc
## No real point in using AC_LANG_* and ${ac_ext}, as we need to create
## hard-wired suffix rules.  We could be a bit more careful as we
## actually only test suffix '.cc'.
ac_try='${CXX} ${CXXFLAGS} -c conftest.cc -o TMP/conftest.lo 1>&AS_MESSAGE_LOG_FD'
if AC_TRY_EVAL(ac_try) \
    && test -f TMP/conftest.lo \
    && AC_TRY_EVAL(ac_try); then
  r_cv_prog_cxx_c_o_lo=yes
else
  r_cv_prog_cxx_c_o_lo=no
fi
rm -rf conftest* TMP])
])# R_PROG_CXX_C_O_LO

## R_PROG_CXX_MAKEFRAG
## -------------------
## Generate a Make fragment with suffix rules for the C++ compiler.
## Used for both building R (Makeconf) and add-ons (etc/Makeconf).
AC_DEFUN([R_PROG_CXX_MAKEFRAG],
[r_cxx_rules_frag=Makefrag.cxx
AC_REQUIRE([R_PROG_CXX_M])
AC_REQUIRE([R_PROG_CXX_C_O_LO])
cat << \EOF > ${r_cxx_rules_frag}
.cc.o:
	$(CXX) $(ALL_CPPFLAGS) $(ALL_CXXFLAGS) -c $< -o $[@]
.cpp.o:
	$(CXX) $(ALL_CPPFLAGS) $(ALL_CXXFLAGS) -c $< -o $[@]
.C.o:
	$(CXX) $(ALL_CPPFLAGS) $(ALL_CXXFLAGS) -c $< -o $[@]
EOF
if test "${r_cv_prog_cxx_m}" = yes; then
  cat << \EOF >> ${r_cxx_rules_frag}
.cc.d:
	@echo "making $[@] from $<"
	@$(CXX) -M $(ALL_CPPFLAGS) $< | \
	  sed -e 's/^\([[^:]]*\)\.o\([[ 	]]\)*:/\1.o \1.lo\2:/' > $[@]
.cpp.d:
	@echo "making $[@] from $<"
	@$(CXX) -M $(ALL_CPPFLAGS) $< | \
	  sed -e 's/^\([[^:]]*\)\.o\([[ 	]]\)*:/\1.o \1.lo\2:/' > $[@]
.C.d:
	@echo "making $[@] from $<"
	@$(CXX) -M $(ALL_CPPFLAGS) $< | \
	  sed -e 's/^\([[^:]]*\)\.o\([[ 	]]\)*:/\1.o \1.lo\2:/' > $[@]
EOF
else
  cat << \EOF >> ${r_cxx_rules_frag}
.cc.d:
	@echo > $[@]
.cpp.d:
	@echo > $[@]
.C.d:
	@echo > $[@]
EOF
fi
if test "${r_cv_prog_cxx_c_o_lo}" = yes; then
  cat << \EOF >> ${r_cxx_rules_frag}
.cc.lo:
	$(CXX) $(ALL_CPPFLAGS) $(ALL_CXXFLAGS_LO) -c $< -o $[@]
.cpp.lo:
	$(CXX) $(ALL_CPPFLAGS) $(ALL_CXXFLAGS_LO) -c $< -o $[@]
.C.lo:
	$(CXX) $(ALL_CPPFLAGS) $(ALL_CXXFLAGS_LO) -c $< -o $[@]
EOF
else
  cat << \EOF >> ${r_cxx_rules_frag}
.cc.lo:
	@test -d .libs || mkdir .libs
	$(CXX) $(ALL_CPPFLAGS) $(ALL_CXXFLAGS_LO) -c $< -o .libs/$[*].o
	mv .libs/$[*].o $[*].lo
.cpp.lo:
	@test -d .libs || mkdir .libs
	$(CXX) $(ALL_CPPFLAGS) $(ALL_CXXFLAGS_LO) -c $< -o .libs/$[*].o
	mv .libs/$[*].o $[*].lo
.C.lo:
	@test -d .libs || mkdir .libs
	$(CXX) $(ALL_CPPFLAGS) $(ALL_CXXFLAGS_LO) -c $< -o .libs/$[*].o
	mv .libs/$[*].o $[*].lo
EOF
fi
AC_SUBST_FILE(r_cxx_rules_frag)
])# R_PROG_CXX_MAKEFRAG

## R_PROG_CXX_FLAG
## ---------------
## Check whether the C++ compiler handles command line option FLAG,
## and set shell variable r_cv_prog_cc_flag_SFLAG accordingly (where
## SFLAG is a shell-safe transliteration of FLAG).
## In addition, execute ACTION-IF-TRUE in case of success.
AC_DEFUN([R_PROG_CXX_FLAG],
[ac_safe=AS_TR_SH($1)
AC_MSG_CHECKING([whether ${CXX-c++} accepts $1])
AC_CACHE_VAL([r_cv_prog_cxx_flag_${ac_safe}],
[AC_LANG_PUSH(C++)
r_save_CXXFLAGS="${CXXFLAGS}"
CXXFLAGS="${CXXFLAGS} $1"
AC_LINK_IFELSE([AC_LANG_PROGRAM()],
               [eval "r_cv_prog_cxx_flag_${ac_safe}=yes"],
               [eval "r_cv_prog_cxx_flag_${ac_safe}=no"])
CXXFLAGS="${r_save_CXXFLAGS}"
AC_LANG_POP(C++)
])
if eval "test \"`echo '$r_cv_prog_cxx_flag_'$ac_safe`\" = yes"; then
  AC_MSG_RESULT([yes])
  [$2]
else
  AC_MSG_RESULT([no])
fi
])# R_PROG_CXX_FLAG

### * Fortran 77 compiler/converter and its characteristics.

## R_PROG_F77_OR_F2C
## -----------------
## Find a Fortran 77 compiler, or f2c.
##
## If we have not been forced to use a particular Fortran compiler, try
## to find one using one of the several common names.  The list is based
## on what the current autoconf CVS contains.  This says,
##
## <Quote>
## Compilers are ordered by
##  1. F77, F90, F95
##  2. Good/tested native compilers, bad/untested native compilers
##  3. Wrappers around f2c go last.
##
## 'fort77' and fc' are wrappers around 'f2c', 'fort77' being better.
## It is believed that under HP-UX 'fort77' is the name of the native
## compiler.  On some Cray systems, fort77 is a native compiler.
## frt is the Fujitsu F77 compiler.
## pgf77 and pgf90 are the Portland Group F77 and F90 compilers.
## xlf/xlf90/xlf95 are IBM (AIX) F77/F90/F95 compilers.
## lf95 is the Lahey-Fujitsu compiler.
## fl32 is the Microsoft Fortran "PowerStation" compiler.
## af77 is the Apogee F77 compiler for Intergraph hardware running CLIX.
## epcf90 is the "Edinburgh Portable Compiler" F90.
## fort is the Compaq Fortran 90 (now 95) compiler for Tru64 and
## Linux/Alpha.
## </Quote>
##
## In fact, on HP-UX fort77 is the POSIX-compatible native compiler and
## f77 is not: hence we need look for fort77 first!
AC_DEFUN([R_PROG_F77_OR_F2C],
[if test -n "${F77}" && test -n "${F2C}"; then
  warn_F77_and_F2C="both 'F77' and 'F2C' given.
Using the given Fortran 77 compiler ..."
  AC_MSG_WARN([${warn_F77_and_F2C}])
  F2C=
fi
if test -n "${F77}"; then
  AC_MSG_RESULT([defining F77 to be ${F77}])
elif test -z "${F2C}"; then
  F77=
  case "${host_os}" in
    hpux*)
      AC_CHECK_PROGS(F77, [g77 fort77 f77 xlf frt pgf77 fl32 af77 f90 \
                           xlf90 pgf90 epcf90 f95 fort xlf95 lf95 g95 fc])
      ;;
    *)
      AC_CHECK_PROGS(F77, [g77 f77 xlf frt pgf77 fl32 af77 fort77 f90 \
                           xlf90 pgf90 epcf90 f95 fort xlf95 lf95 g95 fc])
      ;;
  esac
  if test -z "${F77}"; then
    AC_CHECK_PROG(F2C, f2c, f2c, [])
  fi
else
  AC_MSG_RESULT([defining F2C to be ${F2C}])
fi
if test -n "${F77}"; then
  ## If the above 'found' a Fortran 77 compiler, we run AC_PROG_F77 as
  ## this does additional testing (GNU, '-g', ...).
  AC_PROG_F77
elif test -z "${F2C}"; then
  AC_MSG_ERROR([Neither an F77 compiler nor f2c found])
fi
])# R_PROG_F77_OR_F2C

## R_PROG_F77_FLIBS
## ----------------
## Run AC_F77_LIBRARY_LDFLAGS, and fix some known problems with FLIBS.
AC_DEFUN([R_PROG_F77_FLIBS],
[AC_BEFORE([$0], [AC_F77_LIBRARY_LDFLAGS])
## Currently (Autoconf 2.50 or better, it seems) FLIBS also contains all
## elements of LIBS when AC_F77_LIBRARY_LDFLAGS is run.  This is because
## _AC_PROG_F77_V_OUTPUT() uses 'eval $ac_link' for obtaining verbose
## linker output, and AC_LANG(Fortran 77) sets up ac_link to contain
## LIBS.  Most likely a bug, and a nuisance in any case ... 
## But we cannot simply eliminate the elements in FLIBS duplicated from
## LIBS (e.g. '-lm' should be preserved).  Hence, we try to call
## AC_F77_LIBRARY_LDFLAGS() with LIBS temporarily set to empty.
r_save_LIBS="${LIBS}"
LIBS=
AC_F77_LIBRARY_LDFLAGS
LIBS="${r_save_LIBS}"
## Currently g77 on Darwin links against '-lcrt1.o' (and for GCC 3.1 or
## better also against '-lcrtbegin.o'), which (unlike '-lcrt0.o') are
## not stripped by AC_F77_LIBRARY_LDFLAGS.  This in particular causes
## R_PROG_F77_CC_COMPAT to fail.  Hence, we make sure all -lcrt*.o are
## removed.
##
## Native f90 on HPUX 11 comes up with '-l:libF90.a' causing trouble
## when using gcc for linking.  The '-l:' construction is similar to
## plain '-l' except that search order (archive/shared) given by '-a'
## is not important.  We escape such flags via '-Wl,' in case of gcc.
## Note that the current Autoconf CVS uses _AC_LINKER_OPTION for a
## similar purpose when computing FLIBS: this uses '-Xlinker' escapes
## for gcc and does nothing otherwise.  Note also that we cannot simply
## unconditionally escape with '${wl}' from libtool as on HPUX we need
## SHLIB_LD=ld for native C compilers (problem with non-PIC 'crt0.o',
## see 'Individual platform overrides' in section 'DLL stuff' in file
## 'configure.ac'.
##
## Using the Intel Fortran compiler (ifc) one typically gets incorrect
## flags, as the output from _AC_PROG_F77_V_OUTPUT() contains double
## quoted options, e.g. "-mGLOB_options_string=......", see also e.g.
## http://www.octave.org/octave-lists/archive/octave-maintainers.2002/msg00038.html.
## One possible solution is to change AC_F77_LIBRARY_LDFLAGS() to remove
## double quotes for ifc, as it already does for the Cray cft90.  As we
## prefer not to overload Autoconf code, we try to fix things here ...
flibs=
if test "${GCC}" = yes; then
  linker_option="-Wl,"
else
  linker_option=
fi
for arg in ${FLIBS}; do
  case "${arg}" in
    -lcrt*.o)
      ;;
    -[[a-zA-Z]]/*\" | -[[a-zA-Z]]*\\) # ifc
      ;;
    -l:*)
      flibs="${flibs} ${linker_option}${arg}"
      ;;
    *)
      flibs="${flibs} ${arg}"
      ;;
  esac
done
FLIBS="${flibs}"
## Versions of g77 up to 3.0.x only have a non-PIC (static) -lg2c which
## on some platforms means one cannot build dynamically loadable modules
## containing Fortran code.  (g77 3.1 will have a shared -lg2c too.)  As
## a workaround, Debian provides -lg2c-pic which holds pic objects only,
## and we should use in case we can find it ...
if test "${G77}" = yes; then
  r_save_LIBS="${LIBS}"
  flibs=`echo "${FLIBS}" | sed 's/-lg2c/-lg2c-pic/'`
  LIBS="${flibs} ${LIBS}"
  AC_LANG_PUSH(C)
  AC_LINK_IFELSE([AC_LANG_PROGRAM()], [FLIBS="${flibs}"], [])
  AC_LANG_POP(C)
  LIBS="${r_save_LIBS}"
fi
])# R_PROG_F77_FLIBS

## R_PROG_F77_APPEND_UNDERSCORE
## ----------------------------
## See if the Fortran 77 compiler appends underscores.
## What we really should do is determine how to properly mangle the 
## names of C/C++ identifiers (potentially containing underscores) so
## that they match the name-mangling scheme used by the Fortran 77
## compiler.  Autoconf 2.50 or better has macros F77_FUNC(name, NAME)
## and F77_FUNC_(name, NAME) for this.  However, the F77_* macros in
## the R API have one argument only and therefore cannot deal with 
## Fortran 77 compilers which convert to upper case or add an extra
## underscore for identifiers containing underscores.  We give an error
## in the former case; as ISO Fortran 77 does not allow underscores in
## function names, we do nothing about the latter.
AC_DEFUN([R_PROG_F77_APPEND_UNDERSCORE],
[AC_REQUIRE([AC_F77_WRAPPERS])
## DANGER!  We really needs the results of _AC_F77_NAME_MANGLING as
## stored in the cache var ac_cv_f77_mangling which is not documented
## and hence may change ...
case "${ac_cv_f77_mangling}" in
  "upper "*)
    AC_MSG_WARN([Fortran compiler uses uppercase external names])
    AC_MSG_ERROR([cannot use Fortran])
    ;;
esac
AC_MSG_CHECKING([whether ${F77} appends underscores to external names])
AC_CACHE_VAL([r_cv_prog_f77_append_underscore],
[case "${ac_cv_f77_mangling}" in
  *", underscore, "*)
    r_cv_prog_f77_append_underscore=yes
    ;;
  *", no underscore, "*)
    r_cv_prog_f77_append_underscore=no
    ;;
esac])
if test -n "${r_cv_prog_f77_append_underscore}"; then
  AC_MSG_RESULT([${r_cv_prog_f77_append_underscore}])
else
  AC_MSG_RESULT([unknown])
  AC_MSG_ERROR([cannot use Fortran])
fi
if test "${r_cv_prog_f77_append_underscore}" = yes; then
  AC_DEFINE(HAVE_F77_UNDERSCORE, 1,
            [Define if your Fortran compiler appends an underscore to
             external names.])
fi
])# R_PROG_F77_APPEND_UNDERSCORE

## R_PROG_F77_CAN_RUN
## --------------------
## Check whether the C/Fortran set up produces runnable code, as
## a preliminary to the compatibility tests.
## May fail if Fortran shared libraries are not in the library path.
AC_DEFUN([R_PROG_F77_CAN_RUN],
[AC_REQUIRE([AC_CHECK_LIBM])
AC_MSG_CHECKING([whether mixed C/Fortran code can be run])
AC_CACHE_VAL([r_cv_prog_f77_can_run],
[cat > conftestf.f <<EOF
      subroutine cftest(a, b, x, y)
      integer a(3), b(2)
      double precision x(3), y(3)
      end
EOF
${F77} ${FFLAGS} -c conftestf.f 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
## Yes we need to double quote this ...
[cat > conftest.c <<EOF
#include <math.h>
#include "confdefs.h"
#ifdef HAVE_F77_UNDERSCORE
# define F77_SYMBOL(x)   x ## _
#else
# define F77_SYMBOL(x)   x
#endif
int main () {
  exit(0);
}
EOF]
if ${CC} ${CFLAGS} -c conftest.c 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
  ## <NOTE>
  ## This should really use MAIN_LD, and hence come after this is
  ## determined (and necessary additions to MAIN_LDFLAGS were made).
  ## But it seems that we currently can always use the C compiler.
  ## Also, to be defensive there should be a similar test with SHLIB_LD
  ## and SHLIB_LDFLAGS (and note that on HPUX with native cc we have to
  ## use ld for SHLIB_LD) ...
  if ${CC} ${LDFLAGS} ${MAIN_LDFLAGS} -o conftest${ac_exeext} \
       conftest.${ac_objext} conftestf.${ac_objext} ${FLIBS} \
       ${LIBM} 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD;
  ## </NOTE>
  then
    output=`./conftest${ac_exeext} 2>&1`
    if test ${?} = 0; then
      r_cv_prog_f77_can_run=yes
    fi
  fi
fi
])
rm -rf conftest conftest.* conftestf.* core
if test -n "${r_cv_prog_f77_can_run}"; then
  AC_MSG_RESULT([yes])
else
  AC_MSG_WARN([cannot run mixed C/Fortan code])
  AC_MSG_ERROR([Maybe check LDFLAGS for paths to Fortran libraries?])
fi
])# R_PROG_F77_CAN_RUN

## R_PROG_F77_CC_COMPAT
## --------------------
## Check whether the Fortran 77 and C compilers agree on int and double.
AC_DEFUN([R_PROG_F77_CC_COMPAT],
[AC_REQUIRE([AC_CHECK_LIBM])
AC_MSG_CHECKING([whether ${F77} and ${CC} agree on int and double])
AC_CACHE_VAL([r_cv_prog_f77_cc_compat],
[cat > conftestf.f <<EOF
      subroutine cftest(a, b, x, y)
      integer a(3), b(2)
      double precision x(3), y(3)

      b(1) = a(3)/a(2)
      b(2) = a(3) - a(1)*a(2)
      y(1) = dble(a(3))/x(2)
      y(2) = x(3)*x(1)
      y(3) = (x(2)/x(1)) ** a(1)
      end
EOF
${F77} ${FFLAGS} -c conftestf.f 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
## Yes we need to double quote this ...
[cat > conftest.c <<EOF
#include <math.h>
#include "confdefs.h"
#ifdef HAVE_F77_UNDERSCORE
# define F77_SYMBOL(x)   x ## _
#else
# define F77_SYMBOL(x)   x
#endif

extern void F77_SYMBOL(cftest)(int *a, int *b, double *x, double *y);

int main () {
  int a[3] = {17, 237, 2000000000}, b[2], res = 0;
  double x[3] = {3.14159265, 123.456789, 2.3e34}, z[3];
  double eps = 1e-6;
  double zres[3];
  int i, bres[2];

  zres[0] = (double) a[2]/x[1];
  zres[1] = x[2]*x[0];
  zres[2] = pow(x[1]/x[0], 17.0);
  bres[0] = a[2]/a[1];
  bres[1] = a[2] - a[0]*a[1];
  F77_SYMBOL(cftest)(a, b, x, z);
  if(b[0] != bres[0]) res++;
  if(b[1] != bres[1]) res++;
  for(i = 0; i < 3; i++)
    if(fabs(z[i]/zres[i] - 1) > eps) res++;
  printf("number of errors %d\n", res);
  exit(res);
}
EOF]
if ${CC} ${CFLAGS} -c conftest.c 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
  ## <NOTE>
  ## This should really use MAIN_LD, and hence come after this is
  ## determined (and necessary additions to MAIN_LDFLAGS were made).
  ## But it seems that we currently can always use the C compiler.
  ## Also, to be defensive there should be a similar test with SHLIB_LD
  ## and SHLIB_LDFLAGS (and note that on HPUX with native cc we have to
  ## use ld for SHLIB_LD) ...
  if ${CC} ${LDFLAGS} ${MAIN_LDFLAGS} -o conftest${ac_exeext} \
       conftest.${ac_objext} conftestf.${ac_objext} ${FLIBS} \
       ${LIBM} 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD;
  ## </NOTE>
  then
    output=`./conftest${ac_exeext} 2>&1`
    if test ${?} = 0; then
      r_cv_prog_f77_cc_compat=yes
    fi
  fi
fi
])
rm -rf conftest conftest.* conftestf.* core
if test -n "${r_cv_prog_f77_cc_compat}"; then
  AC_MSG_RESULT([yes])
else
  AC_MSG_WARN([${F77} and ${CC} disagree on int and double])
  AC_MSG_ERROR([Maybe change CFLAGS or FFLAGS?])
fi
])# R_PROG_F77_CC_COMPAT

## R_PROG_F77_CC_COMPAT_COMPLEX
## ----------------------------
## Check whether the Fortran 77 and C compilers agree on double complex.
AC_DEFUN([R_PROG_F77_CC_COMPAT_COMPLEX],
[AC_REQUIRE([AC_CHECK_LIBM])
AC_MSG_CHECKING([whether ${F77} and ${CC} agree on double complex])
AC_CACHE_VAL([r_cv_prog_f77_cc_compat_complex],
[cat > conftestf.f <<EOF
      subroutine cftest(x)
      complex*16 x(3)
      integer i

c a few tests of constructs that are sometimes missing
      if(x(1) .eq. x(1)) i = 0
      x(1) = x(1)*x(2) + x(3)
      end
EOF
${F77} ${FFLAGS} -c conftestf.f 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
## Yes we need to double quote this ...
[cat > conftest.c <<EOF
#include <math.h>
#include "confdefs.h"
#ifdef HAVE_F77_UNDERSCORE
# define F77_SYMBOL(x)   x ## _
#else
# define F77_SYMBOL(x)   x
#endif

typedef struct {
        double r;
        double i;
} Rcomplex;

extern void F77_SYMBOL(cftest)(Rcomplex *x);

int main () {
    Rcomplex z[3];
    
    z[0].r = 3.14159265;
    z[0].i = 2.172;
    z[1].i = 3.14159265;
    z[1].r = 2.172;
    z[2].r = 123.456;
    z[2].i = 0.123456;
    F77_SYMBOL(cftest)(z);
    printf("%f %f\n", z[0].r, z[0].i);
    if(fabs(z[0].r - 123.456) < 1e-4 && fabs(z[0].i - 14.71065) < 1e-4)
	exit(0);
    else exit(1);
}
EOF]
if ${CC} ${CFLAGS} -c conftest.c 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
  ## <NOTE>
  ## This should really use MAIN_LD, and hence come after this is
  ## determined (and necessary additions to MAIN_LDFLAGS were made).
  ## But it seems that we currently can always use the C compiler.
  ## Also, to be defensive there should be a similar test with SHLIB_LD
  ## and SHLIB_LDFLAGS (and note that on HPUX with native cc we have to
  ## use ld for SHLIB_LD) ...
  if ${CC} ${LDFLAGS} ${MAIN_LDFLAGS} -o conftest${ac_exeext} \
       conftest.${ac_objext} conftestf.${ac_objext} ${FLIBS} \
       ${LIBM} 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD;
  ## </NOTE>
  then
    output=`./conftest${ac_exeext} 2>&1`
    if test ${?} = 0; then
      r_cv_prog_f77_cc_compat_complex=yes
    fi
  fi
fi
])
rm -rf conftest conftest.* conftestf.* core
if test -n "${r_cv_prog_f77_cc_compat_complex}"; then
  AC_MSG_RESULT([yes])
  AC_DEFINE(HAVE_DOUBLE_COMPLEX, 1,
            [Define if C's Rcomplex and Fortran's COMPLEX*16 can be
             interchanged, and can do arithmetic on the latter.])
else
  warn_f77_cc_double_complex="${F77} and ${CC} disagree on double complex"
  AC_MSG_WARN([${warn_f77_cc_double_complex}])
fi
AC_SUBST(HAVE_DOUBLE_COMPLEX)
])# R_PROG_F77_CC_COMPAT_COMPLEX

## R_PROG_F77_C_O_LO
## -----------------
## Check whether the Fortran compiler supports '-c -o FILE.lo'.
AC_DEFUN([R_PROG_F77_C_O_LO],
[AC_CACHE_CHECK([whether ${F77} supports -c -o FILE.lo],
                [r_cv_prog_f77_c_o_lo],
[test -d TMP || mkdir TMP
cat > conftest.f <<EOF
      program conftest
      end
EOF
ac_try='${F77} ${FFLAGS} -c conftest.f -o TMP/conftest.lo 1>&AS_MESSAGE_LOG_FD'
if AC_TRY_EVAL(ac_try) \
    && test -f TMP/conftest.lo \
    && AC_TRY_EVAL(ac_try); then
  r_cv_prog_f77_c_o_lo=yes
else
  r_cv_prog_f77_c_o_lo=no
fi
rm -rf conftest* TMP])
])# R_PROG_F77_C_O_LO

## R_PROG_F77_MAKEFRAG
## -------------------
## Generate a Make fragment with suffix rules for Fortran 77 source
## files when using a Fortran 77 compiler.
## Used for both building R (Makeconf) and add-ons (etc/Makeconf).
AC_DEFUN([R_PROG_F77_MAKEFRAG],
[AC_REQUIRE([R_PROG_F77_C_O_LO])
r_f77_rules_frag=Makefrag.f77
cat << \EOF > ${r_f77_rules_frag}
.f.c:
.f.o:
	$(F77) $(ALL_FFLAGS) -c $< -o $[@]
EOF
if test "${r_cv_prog_f77_c_o_lo}" = yes; then
  cat << \EOF >> ${r_f77_rules_frag}
.f.lo:
	$(F77) $(ALL_FFLAGS_LO) -c $< -o $[@]
EOF
else
  cat << \EOF >> ${r_f77_rules_frag}
.f.lo:
	@test -d .libs || mkdir .libs
	$(F77) $(ALL_FFLAGS_LO) -c $< -o .libs/$[*].o
	mv .libs/$[*].o $[*].lo
EOF
fi
AC_SUBST_FILE(r_f77_rules_frag)
])# R_PROG_F77_MAKEFRAG

## R_PROG_F77_FLAG(FLAG, [ACTION-IF-TRUE])
## ---------------------------------------
## Check whether the Fortran 77 compiler handles command line option
## FLAG, and set shell variable r_cv_prog_f77_flag_SFLAG accordingly
## (where SFLAG is a shell-safe transliteration of FLAG).
## In addition, execute ACTION-IF-TRUE in case of success.
AC_DEFUN([R_PROG_F77_FLAG],
[ac_safe=AS_TR_SH($1)
AC_MSG_CHECKING([whether ${F77} accepts $1])
AC_CACHE_VAL([r_cv_prog_f77_flag_${ac_safe}],
[AC_LANG_PUSH(Fortran 77)
r_save_FFLAGS="${FFLAGS}"
FFLAGS="${FFLAGS} $1"
AC_LINK_IFELSE([AC_LANG_PROGRAM()],
               [eval "r_cv_prog_f77_flag_${ac_safe}=yes"],
               [eval "r_cv_prog_f77_flag_${ac_safe}=no"])
FFLAGS="${r_save_FFLAGS}"
AC_LANG_POP(Fortran 77)
])
if eval "test \"`echo '$r_cv_prog_f77_flag_'$ac_safe`\" = yes"; then
  AC_MSG_RESULT([yes])
  [$2]
else
  AC_MSG_RESULT([no])
fi
])# R_PROG_F77_FLAG

## R_PROG_F2C_FLIBS
## ----------------
AC_DEFUN([R_PROG_F2C_FLIBS],
[AC_REQUIRE([AC_PROG_RANLIB])
AC_REQUIRE([AC_CHECK_LIBM])
AC_CACHE_VAL([r_cv_f2c_flibs],
[
## <FIXME>
## Why do we need this?  What about AC_F77_DUMMY_MAIN?
## This seems to be necessary on some Linux system. -- you bet! -pd
AC_LANG_PUSH(C)
cat > conftest.${ac_ext} << EOF
int MAIN_ () { exit(0); }
int MAIN__ () { exit(0); }
EOF
if AC_TRY_EVAL(ac_compile); then
  ${AR} ${ARFLAGS} libconftest.a conftest.${ac_objext} 1>&AS_MESSAGE_LOG_FD
  ${RANLIB} libconftest.a 1>&AS_MESSAGE_LOG_FD
fi
AC_LANG_POP(C)
## </FIXME>
AC_CHECK_LIB(f2c, f_open, 
             [flibs=-lf2c],
             [flibs=],
             [-L. -lconftest ${LIBM}])
rm -f libconftest*
if test -z "${flibs}"; then
  AC_CHECK_LIB(F77, d_sin, [flibs=-lF77], [flibs=], [${LIBM}])
  if test -n "${flibs}"; then
    AC_CHECK_LIB(I77, f_rew, [flibs="${flibs} -lI77"], [flibs=], [-lF77])
  fi
fi
r_cv_f2c_flibs="${flibs}"])
FLIBS="${r_cv_f2c_flibs}"
if test -z "${FLIBS}"; then
  warn_f2c_flibs="I found f2c but not libf2c, or libF77 and libI77"
  AC_MSG_WARN([${warn_f2c_flibs}])
else
  FLIBS="${FLIBS} ${LIBM}"
fi
])# R_PROG_F2C_FLIBS

## R_PROG_F2C_MAKEFRAG
## -------------------
## Generate a Make fragment with suffix rules for Fortran 77 source
## files when using f2c, the Fortran-to-C converter.
## Used for both building R (Makeconf) and add-ons (etc/Makeconf).
AC_DEFUN([R_PROG_F2C_MAKEFRAG],
[AC_REQUIRE([R_PROG_CC_C_O_LO])
r_f77_rules_frag=Makefrag.f77
cat << \EOF > ${r_f77_rules_frag}
.f.o:
	$(F2C) $(F2CFLAGS) < $< > $[*].c
	$(CC) $(ALL_CPPFLAGS) $(ALL_CFLAGS) -c $[*].c -o $[@]
	@rm -f $[*].c
.f.lo:
	$(F2C) $(F2CFLAGS) < $< > $[*].c
EOF
if test "${r_cv_prog_cc_c_o_lo}" = yes; then
  cat << \EOF >> ${r_f77_rules_frag}
	$(CC) $(ALL_CPPFLAGS) $(ALL_CFLAGS_LO) -c $[*].c -o $[@]
EOF
else
  cat << \EOF >> ${r_f77_rules_frag}
	@test -d .libs || mkdir .libs
	$(CC) $(ALL_CPPFLAGS) $(ALL_CFLAGS_LO) -c $[*].c -o .libs/$[*].o
	mv .libs/$[*].o $[*].lo
EOF
fi
cat << \EOF >> ${r_f77_rules_frag}
	@rm -f $[*].c
EOF
AC_SUBST_FILE(r_f77_rules_frag)
])# R_PROG_F2C_MAKEFRAG

### * Library functions

## R_FUNC___SETFPUCW
## -----------------
AC_DEFUN([R_FUNC___SETFPUCW],
[AC_CHECK_FUNC(__setfpucw, 
[AC_CACHE_CHECK([whether __setfpucw is needed],
	        [r_cv_func___setfpucw_needed],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
int main () {
#include <fpu_control.h>
#if defined(_FPU_DEFAULT) && defined(_FPU_IEEE)
  exit(_FPU_DEFAULT != _FPU_IEEE);
#endif
  exit(0);
}
]])],
              [r_cv_func___setfpucw_needed=no],
              [r_cv_func___setfpucw_needed=yes],
              [r_cv_func___setfpucw_needed=no])])
if test "x${r_cv_func___setfpucw_needed}" = xyes; then
  AC_DEFINE(NEED___SETFPUCW, 1,
	    [Define if your system needs __setfpucw() to control
             FPU rounding. 
             This was used to control floating point precision,
             rounding and floating point exceptions on older Linux
             systems. 
             As of GLIBC 2.1 this function is not used anymore.])
fi])
])# R_FUNC___SETFPUCW

## R_FUNC_CALLOC
## -------------
AC_DEFUN([R_FUNC_CALLOC],
[AC_CACHE_CHECK([for working calloc], [r_cv_func_calloc_works],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <stdlib.h>
int main () {
  int *p = calloc(0, sizeof(int));
  exit(p == 0);
}
]])],
               [r_cv_func_calloc_works=yes],
               [r_cv_func_calloc_works=no],
               [r_cv_func_calloc_works=no])])
if test "x${r_cv_func_calloc_works}" = xyes; then
  AC_DEFINE(HAVE_WORKING_CALLOC, 1,
            [Define if calloc(0) returns a null pointer.])
fi
])# R_FUNC_CALLOC

## R_FUNC_FINITE
## -------------
AC_DEFUN([R_FUNC_FINITE],
[AC_CACHE_CHECK([for working finite], [r_cv_func_finite_works],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <math.h>
#include "confdefs.h"
int main () {
#ifdef HAVE_FINITE
  exit(finite(1./0.) | finite(0./0.) | finite(-1./0.));
#else
  exit(1);
#endif
}
]])],
               [r_cv_func_finite_works=yes],
               [r_cv_func_finite_works=no],
               [r_cv_func_finite_works=no])])
if test "x${r_cv_func_finite_works}" = xyes; then
  AC_DEFINE(HAVE_WORKING_FINITE, 1,
            [Define if finite() is correct for -Inf/NaN/Inf.])
fi
])# R_FUNC_FINITE

## R_FUNC_LOG
## ----------
AC_DEFUN([R_FUNC_LOG],
[AC_CACHE_CHECK([for working log], [r_cv_func_log_works],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <math.h>
#include "confdefs.h"
int main () {
#ifdef HAVE_ISNAN
  exit(!(log(0.) == -1. / 0. && isnan(log(-1.))));
#else
  exit(log(0.) != -1. / 0);
#endif
}
]])],
               [r_cv_func_log_works=yes],
               [r_cv_func_log_works=no],
               [r_cv_func_log_works=no])])
if test "x${r_cv_func_log_works}" = xyes; then
  AC_DEFINE(HAVE_WORKING_LOG, 1,
            [Define if log() is correct for 0/-1.])
fi
])# R_FUNC_LOG

## R_FUNC_LOG1P
## ------------
## Suggested by Nelson H. F. Beebe <beebe@math.utah.edu> to deal with
## inaccuracies on at least NetBSD 1.6 and OpenBSD 3.2.
## However, don't test all the way into denormalized x (he had k > -1074)
AC_DEFUN([R_FUNC_LOG1P],
[AC_CACHE_CHECK([for working log1p], [r_cv_func_log1p_works],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <math.h>
#include "confdefs.h"
int main () {
#ifdef HAVE_LOG1P
  int k;
  double d;
  double x;
  /* log(1+x) = x - (1/2)x^2 + (1/3)x^3 - (1/4)x^4 ... */
  /*          = x for x sufficiently small */
  x = pow(2.0, -53.0);
  for(k = -54; k > -1022; --k) {	
    x /= 2.0;
    if(x == 0.0)
      exit(0);			/* OK: reached underflow limit */
    d = log1p(x);
    if(d == 0.0)
      exit(1);			/* ERROR: inaccurate log1p() */
    if(d != x)
      exit(1);			/* ERROR: inaccurate log1p() */
  }	
  exit(0);
#else
  exit(1);
#endif
}
]])],
               [r_cv_func_log1p_works=yes],
               [r_cv_func_log1p_works=no],
               [r_cv_func_log1p_works=no])])
if test "x${r_cv_func_log1p_works}" = xyes; then
  AC_DEFINE(HAVE_WORKING_LOG1P, 1,
            [Define if log1p() exists and is accurate enough.])
  RMATH_HAVE_WORKING_LOG1P="# define HAVE_WORKING_LOG1P 1"
else
  RMATH_HAVE_WORKING_LOG1P="# undef HAVE_WORKING_LOG1P"
fi
AC_SUBST(RMATH_HAVE_WORKING_LOG1P)
])# R_FUNC_LOG1P

## R_FUNC_STRPTIME
## ---------------
AC_DEFUN([R_FUNC_STRPTIME],
[AC_CACHE_CHECK([for working strptime], [r_cv_func_strptime_works],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <time.h>
int main () {
#ifdef HAVE_STRPTIME
  struct tm tm;
  char *p;

  p = strptime("1960-01-01", "%Y-%m-%d", &tm);
  exit(p == 0);
#else
  exit(1);
#endif
}
]])],
               [r_cv_func_strptime_works=yes],
               [r_cv_func_strptime_works=no],
               [r_cv_func_strptime_works=no])])
if test "x${r_cv_func_strptime_works}" = xyes; then
  AC_DEFINE(HAVE_WORKING_STRPTIME, 1,
            [Define if strptime() exists and does not fail pre-1970.])
fi
])# R_FUNC_STRPTIME

### * Headers

## R_HEADER_SETJMP
## ---------------
AC_DEFUN([R_HEADER_SETJMP],
[AC_CACHE_CHECK([whether setjmp.h is POSIX.1 compatible], 
                [r_cv_header_setjmp_posix],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[#include <setjmp.h>]],
[[sigjmp_buf b;
sigsetjmp(b, 0);
siglongjmp(b, 1);]])],
                   [r_cv_header_setjmp_posix=yes],
                   [r_cv_header_setjmp_posix=no])])
if test "${r_cv_header_setjmp_posix}" = yes; then
  AC_DEFINE(HAVE_POSIX_SETJMP, 1,
            [Define if you have POSIX.1 compatible sigsetjmp/siglongjmp.])
fi
])# R_HEADER_SETJMP

## R_HEADER_GLIBC2
## ---------------
AC_DEFUN([R_HEADER_GLIBC2],
[AC_CACHE_CHECK([for GNU C library with version >= 2],
                [r_cv_header_glibc2],
[AC_EGREP_CPP([yes],
[#include <stdio.h>
#if defined __GLIBC__ && __GLIBC__ >= 2
  yes
#endif
],
              [r_cv_header_glibc2=yes],
              [r_cv_header_glibc2=no],
              [r_cv_header_glibc2=no])
])
if test "${r_cv_header_glibc2}" = yes; then
  AC_DEFINE(HAVE_GLIBC2, 1,
            [Define if you have the GNU C library version >= 2.
             This is needed to fix a problem with getting the prototype
             of strptime().])
fi
])# R_HEADER_GLIBC2

## R_TYPE_SOCKLEN
## --------------
AC_DEFUN([R_TYPE_SOCKLEN],
[AC_MSG_CHECKING([for type of socket length])
AC_CACHE_VAL([r_cv_type_socklen],
[for t in socklen_t size_t int; do
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <stddef.h>
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef Win32
# include <winsock.h>
#endif
]],
[[(void)getsockopt (1, 1, 1, NULL, (${t} *)NULL)]])],
                    [r_cv_type_socklen=${t}; break],
                    [r_cv_type_socklen=])
done])
## size_t works on Windows but is unsigned and int is correct
case "${host_os}" in
  cygwin*|mingw*|windows*|winnt)
    r_cv_type_socklen=int
    ;;
esac
if test "x${r_cv_type_socklen}" = x; then
  warn_type_socklen="could not determine type of socket length"
  AC_MSG_WARN([${warn_type_socklen}])
else
  AC_MSG_RESULT([${r_cv_type_socklen} *])
fi
AC_DEFINE_UNQUOTED(SOCKLEN_T, ${r_cv_type_socklen},
                   [Type for socket lengths: socklen_t, sock_t, int?])
])# R_TYPE_SOCKLEN

### * System services

## R_X11
## -----
AC_DEFUN([R_X11],
[AC_PATH_XTRA			# standard X11 search macro
if test -z "${no_x}"; then
  ## We force the use of -lX11 (perhaps this is not necessary?).
  X_LIBS="${X_LIBS} -lX11"
  use_X11="yes"
  AC_DEFINE(HAVE_X11, 1,
            [Define if you have the X11 headers and libraries, and want
             the X11 GUI to be built.])
else
  use_X11="no"
fi])# R_X11

## R_GNOME
## -------
AC_DEFUN([R_GNOME], 
[if test ${want_gnome} = yes; then
  GNOME_INIT_HOOK([], [cont])
  if test "${GNOMEUI_LIBS}"; then
    AM_PATH_LIBGLADE([use_gnome="yes"
                      GNOME_IF_FILES="gnome-interface.glade"],
                     [warn_libglade_version="GNOME support requires libglade version >= 0.3"
                      AC_MSG_WARN([${warn_libglade_version}])],
                     [gnome])
  fi
fi
if test "${use_gnome}" != yes; then
  use_gnome="no"
  GNOME_IF_FILES=
else
  AC_DEFINE(HAVE_GNOME, 1,
            [Define if you have the GNOME headers and libraries,
             and want the GNOME GUI to be built.])
fi
AC_SUBST(HAVE_GNOME)
AC_SUBST(GNOME_IF_FILES)
])# R_GNOME

## R_AQUA
## ------
AC_DEFUN([R_AQUA],
[use_aqua=no
if test "${want_aqua}" = yes; then
  case "${host_os}" in
    darwin*)
      use_aqua=yes
      ;;
  esac
fi
if test "${use_aqua}" = yes; then
  AC_DEFINE(HAVE_AQUA, 1,
            [Define if you have the Aqua headers and libraries,
             and want the Aqua GUI to be built.])
fi
])# R_AQUA

## R_IEEE_754
## ----------
AC_DEFUN([R_IEEE_754],
[AC_CHECK_FUNCS([finite isnan])
AC_CHECK_DECLS([isfinite, isnan], , , [#include <math.h>])
AC_CACHE_CHECK([whether you have IEEE 754 floating-point arithmetic],
               [r_cv_ieee_754],
[if (test "${ac_cv_func_finite}" = yes \
      || test "${ac_cv_have_decl_isfinite}" = yes) \
    && (test "${ac_cv_func_isnan}" = yes \
      || test "${ac_cv_have_decl_isnan}" = yes); then
  r_cv_ieee_754=yes
else
  r_cv_ieee_754=no
fi])
if test "${r_cv_ieee_754}" = yes; then
  AC_DEFINE(IEEE_754, 1,
            [Define if you have IEEE 754 floating point arithmetic.])
fi
])# R_IEEE_754

## R_BSD_NETWORKING
## ----------------
AC_DEFUN([R_BSD_NETWORKING],
[AC_CACHE_CHECK([for BSD networking],
                [r_cv_bsd_networking],
[if test "${ac_cv_header_netdb_h}" = yes \
     && test "${ac_cv_header_netinet_in_h}" = yes \
     && test "${ac_cv_header_sys_socket_h}" = yes \
     && test "${ac_cv_search_connect}" != no \
     && test "${ac_cv_search_gethostbyname}" !=  no; then
  r_cv_bsd_networking=yes
else
  r_cv_bsd_networking=no
fi])
if test "${r_cv_bsd_networking}" = yes; then
  AC_DEFINE(HAVE_BSD_NETWORKING, 1,
            [Define if you have BSD networking headers and libraries.])
  AC_DEFINE(HAVE_SOCKETS, 1,
            [Define if you have support for sockets.])
  AC_DEFINE(HAVE_INTERNET, 1,
            [Define if you have support for ftp/http access.])
  AC_DEFINE(SUPPORT_LIBXML, 1,
            [Define if you provide support for the libxml ftp/http
	     functions.])
fi
])# R_BSD_NETWORKING

## R_BITMAPS
## ---------
## Here we only need any old -lz, and don't need zlib.h.
## However, we do need recent enough libpng and jpeg, and so check both
## the header versions and for key routines in the library.
## The png code will do a run-time check of the consistency of libpng
## versions.
AC_DEFUN([R_BITMAPS],
[BITMAP_LIBS=
if test "${use_jpeglib}" = yes; then
  _R_HEADER_JPEGLIB
  have_jpeg=${r_cv_header_jpeglib_h}
  if test "${have_jpeg}" = yes; then
    AC_CHECK_LIB(jpeg, jpeg_destroy_compress, 
		 [have_jpeg=yes],
		 [have_jpeg=no],
		 [${LIBS}])
  fi
  if test "${have_jpeg}" = yes; then
    BITMAP_LIBS="-ljpeg"
    AC_DEFINE(HAVE_JPEG, 1,
	      [Define if you have the JPEG headers and libraries.])
  fi
fi
if test "${use_libpng}" = yes; then
  AC_CHECK_LIB(z, main, [have_png=yes], [have_png=no])
  if test "${have_png}" = yes; then
    _R_HEADER_PNG
    have_png=${r_cv_header_png_h}
  fi
  if test "${have_png}" = yes; then
    AC_CHECK_LIB(png, png_create_write_struct,
		 [have_png=yes],
		 [have_png=no],
		 [-lz ${LIBS}])
  fi
  if test "${have_png}" = yes; then
    BITMAP_LIBS="${BITMAP_LIBS} -lpng -lz"
    AC_DEFINE(HAVE_PNG, 1,
	      [Define if you have the PNG headers and libraries.])
  fi
fi
AC_SUBST(BITMAP_LIBS)
])# R_BITMAPS

## _R_HEADER_JPEGLIB
## -----------------
## Set shell variable r_cv_header_jpeglib_h to 'yes' if a recent enough
## jpeglib.h is found, and to 'no' otherwise.
AC_DEFUN([_R_HEADER_JPEGLIB],
[AC_CACHE_CHECK([if jpeglib version >= 6b],
                [r_cv_header_jpeglib_h],
AC_EGREP_CPP([yes],
[#include <jpeglib.h>
#if (JPEG_LIB_VERSION >= 62)
  yes
#endif
],
             [r_cv_header_jpeglib_h=yes],
             [r_cv_header_jpeglib_h=no]))
])# _R_HEADER_JPEGLIB

## _R_HEADER_PNG
## -------------
## Set shell variable r_cv_header_png_h to 'yes' if a recent enough
## 'png.h' is found, and to 'no' otherwise.
AC_DEFUN([_R_HEADER_PNG],
[AC_CACHE_CHECK([if libpng version >= 1.0.5], 
                [r_cv_header_png_h],
AC_EGREP_CPP([yes],
[#include <png.h>
#if (PNG_LIBPNG_VER >= 10005)
  yes
#endif
],
             [r_cv_header_png_h=yes],
             [r_cv_header_png_h=no]))
])# _R_HEADER_PNG

## _R_PATH_TCL_CONFIG
## ------------------
## Try finding tclConfig.sh in common library directories and their
## tcl$x.$y subdirectories.  Set shell variable r_cv_path_TCL_CONFIG
## to the entire path of the script if found, and leave it empty
## otherwise.
AC_DEFUN([_R_PATH_TCL_CONFIG],
[AC_MSG_CHECKING([for tclConfig.sh in library (sub)directories])
AC_CACHE_VAL([r_cv_path_TCL_CONFIG],
[for ldir in /opt/lib /sw/lib /usr/local/lib /usr/lib /lib; do
  for dir in \
      ${ldir} \
      `ls -d ${ldir}/tcl[[8-9]].[[0-9]]* 2>/dev/null | sort -r`; do
    if test -f ${dir}/tclConfig.sh; then
      r_cv_path_TCL_CONFIG="${dir}/tclConfig.sh"
      break 2
    fi
  done
done])
if test -n "${r_cv_path_TCL_CONFIG}"; then
  AC_MSG_RESULT([${r_cv_path_TCL_CONFIG}])
else
  AC_MSG_RESULT([no])
fi
])# _R_PATH_TCL_CONFIG

## _R_PATH_TK_CONFIG
## ------------------
## Try finding tkConfig.sh in common library directories and their
## tk$x.$y subdirectories.  Set shell variable r_cv_path_TK_CONFIG
## to the entire path of the script if found, and leave it empty
## otherwise.
AC_DEFUN([_R_PATH_TK_CONFIG],
[AC_MSG_CHECKING([for tkConfig.sh in library (sub)directories])
AC_CACHE_VAL([r_cv_path_TK_CONFIG],
[for ldir in /opt/lib /sw/lib /usr/local/lib /usr/lib /lib; do
  for dir in \
      ${ldir} \
      `ls -d ${ldir}/tk[[8-9]].[[0-9]]* 2>/dev/null | sort -r`; do
    if test -f ${dir}/tkConfig.sh; then
      r_cv_path_TK_CONFIG="${dir}/tkConfig.sh"
      break 2
    fi
  done
done])
if test -n "${r_cv_path_TK_CONFIG}"; then
  AC_MSG_RESULT([${r_cv_path_TK_CONFIG}])
else
  AC_MSG_RESULT([no])
fi
])# _R_PATH_TK_CONFIG

## _R_TCLTK_CONFIG
## ---------------
## Try finding the tclConfig.sh and tkConfig.sh scripts in PATH as well
## as in common library directories and their tcl/tk subdirectories.
## Set shell variables TCL_CONFIG and TK_CONFIG to the entire paths to
## the scripts if found and check that the corresponding Tcl/Tk versions
## are at least 8; if not, set shell variable have_tcltk to 'no'.
AC_DEFUN([_R_TCLTK_CONFIG],
[AC_PATH_PROGS(TCL_CONFIG, [${TCL_CONFIG} tclConfig.sh])
if test -z "${TCL_CONFIG}"; then
  _R_PATH_TCL_CONFIG
  if test -n "${r_cv_path_TCL_CONFIG}"; then
    TCL_CONFIG="${r_cv_path_TCL_CONFIG}"
  fi
fi
AC_PATH_PROGS(TK_CONFIG, [${TK_CONFIG} tkConfig.sh])
if test -z "${TK_CONFIG}"; then
  _R_PATH_TK_CONFIG
  if test -n "${r_cv_path_TK_CONFIG}"; then
    TK_CONFIG="${r_cv_path_TK_CONFIG}"
  fi
fi
if test -z "${TCLTK_CPPFLAGS}" \
    || test -z "${TCLTK_LIBS}"; then
  ## Check whether the versions found via the *Config.sh files are at
  ## least 8; otherwise, issue a warning and turn off Tcl/Tk support.
  ## Note that in theory a system could have outdated versions of the
  ## *Config.sh scripts and yet up-to-date installations of Tcl/Tk in
  ## standard places ...
  if test -n "${TCL_CONFIG}"; then
    . ${TCL_CONFIG}
    if test ${TCL_MAJOR_VERSION} -lt 8; then
      warn_tcltk_version="Tcl/Tk support requires Tcl version >= 8"
      AC_MSG_WARN([${warn_tcltk_version}])
      have_tcltk=no
    fi
  fi
  if test -n "${TK_CONFIG}" \
      && test -z "${warn_tcltk_version}"; then
    . ${TK_CONFIG}
    if test ${TK_MAJOR_VERSION} -lt 8; then
      warn_tcltk_version="Tcl/Tk support requires Tk version >= 8"
      AC_MSG_WARN([${warn_tcltk_version}])
      have_tcltk=no
    fi
  fi
  if test -n "${TCL_CONFIG}" \
      && test -n "${TK_CONFIG}" \
      && test -z "${warn_tcltk_version}"; then
    if test ${TCL_MAJOR_VERSION} -ne ${TK_MAJOR_VERSION} \
      || test ${TCL_MINOR_VERSION} -ne ${TK_MINOR_VERSION}; then
     warn_tcltk_version="Tcl and Tk major or minor versions disagree"
      AC_MSG_WARN([${warn_tcltk_version}])
      have_tcltk=no
    fi
  fi
fi
])# _R_TCLTK_CONFIG

## _R_HEADER_TCL
## -------------
## Set shell variable 'r_cv_header_tcl_h' to 'yes' if a recent enough
## 'tcl.h' is found, and to 'no' otherwise.
AC_DEFUN([_R_HEADER_TCL],
[AC_CACHE_CHECK([for tcl.h], [r_cv_header_tcl_h],
[AC_EGREP_CPP([yes],
[#include <tcl.h>
#if (TCL_MAJOR_VERSION >= 8)
  yes
#endif
],
             [r_cv_header_tcl_h=yes],
             [r_cv_header_tcl_h=no])])
])# _R_HEADER_TCL

## _R_HEADER_TK
## -------------
## Set shell variable 'r_cv_header_tk_h' to 'yes' if a recent enough
## 'tk.h' is found, and to 'no' otherwise.
AC_DEFUN([_R_HEADER_TK],
[AC_CACHE_CHECK([for tk.h], [r_cv_header_tk_h],
[AC_EGREP_CPP([yes],
[#include <tk.h>
#if (TK_MAJOR_VERSION >= 8)
  yes
#endif
],
             [r_cv_header_tk_h=yes],
             [r_cv_header_tk_h=no])])
])# _R_HEADER_TK

## _R_TCLTK_CPPFLAGS
## -----------------
## Need to ensure that we can find the tcl.h and tk.h headers, which
## may be in non-standard and/or version-dependent directories, such as
## on FreeBSD systems.
##
## The logic is as follows.  If TCLTK_CPPFLAGS was specified, then we
## do not investigate any further.  Otherwise, if we still think we
## have Tcl/Tk, then first try via the corresponding *Config.sh file,
## or else try the obvious.
AC_DEFUN([_R_TCLTK_CPPFLAGS],
[AC_REQUIRE([_R_TCLTK_CONFIG])
if test -z "${TCLTK_CPPFLAGS}"; then
  ## We have to do the work.
  if test "${have_tcltk}" = yes; then
    ## Part 1.  Check for tcl.h.
    found_tcl_h=no
    if test -n "${TCL_CONFIG}"; then
      . ${TCL_CONFIG}
      ## Look for tcl.h in
      ##   ${TCL_PREFIX}/include/tcl${TCL_VERSION}
      ##   ${TCL_PREFIX}/include
      ## Also look in
      ##   ${TCL_PREFIX}/include/tcl${TCL_VERSION}/generic
      ## to deal with current FreeBSD layouts.  These also link the real
      ## thing to the version subdir, but the link cannot be used as it
      ## fails to include 'tclDecls.h' which is not linked.  Hence we
      ## must look for the real thing first.  Argh ...
      for dir in \
          ${TCL_PREFIX}/include/tcl${TCL_VERSION}/generic \
          ${TCL_PREFIX}/include/tcl${TCL_VERSION} \
          ${TCL_PREFIX}/include; do 
        AC_CHECK_HEADER([${dir}/tcl.h],
                        [TCLTK_CPPFLAGS="-I${dir}"
                         found_tcl_h=yes
                         break])
      done
    fi
    if test "${found_tcl_h}" = no; then
      _R_HEADER_TCL
      if test "${r_cv_header_tcl_h}" = yes; then
        found_tcl_h=yes
      else
        have_tcltk=no
      fi
    fi
  fi
  if test "${have_tcltk}" = yes; then
    ## Part 2.  Check for tk.h.
    found_tk_h=no
    if test -n "${TK_CONFIG}"; then
      . ${TK_CONFIG}
      ## Look for tk.h in
      ##   ${TK_PREFIX}/include/tk${TK_VERSION}
      ##   ${TK_PREFIX}/include
      ## Also look in
      ##   ${TK_PREFIX}/include/tcl${TK_VERSION}
      ## to compensate for Debian madness ...
      ## Also look in
      ##   ${TK_PREFIX}/include/tk${TK_VERSION}/generic
      ## to deal with current FreeBSD layouts.  See above for details.
      ##
      ## As the AC_CHECK_HEADER test tries including the header file and
      ## tk.h includes tcl.h and X11/Xlib.h, we need to change CPPFLAGS
      ## for the check.
      r_save_CPPFLAGS="${CPPFLAGS}"
      CPPFLAGS="${CPPFLAGS} ${TK_XINCLUDES} ${TCLTK_CPPFLAGS}"
      for dir in \
          ${TK_PREFIX}/include/tk${TK_VERSION}/generic \
          ${TK_PREFIX}/include/tk${TK_VERSION} \
          ${TK_PREFIX}/include/tcl${TK_VERSION} \
          ${TK_PREFIX}/include; do 
        AC_CHECK_HEADER([${dir}/tk.h],
                        [TCLTK_CPPFLAGS="${TCLTK_CPPFLAGS} -I${dir}"
                         found_tk_h=yes
                         break])
      done
      CPPFLAGS="${r_save_CPPFLAGS}"
    fi
    if test "${found_tk_h}" = no; then
      _R_HEADER_TK
      if test "{r_cv_header_tk_h}" = yes; then
        found_tk_h=yes
      else
        have_tcltk=no
      fi
    fi
  fi
fi
if test "${have_tcltk}" = yes; then
  if test -n "${TK_XINCLUDES}"; then
    TCLTK_CPPFLAGS="${TCLTK_CPPFLAGS} ${TK_XINCLUDES}"
  else
    TCLTK_CPPFLAGS="${TCLTK_CPPFLAGS} ${X_CFLAGS}"
  fi
fi
])# _R_TCLTK_CPPFLAGS

## _R_TCLTK_LIBS
## -------------
## Find the tcl and tk libraries.
AC_DEFUN([_R_TCLTK_LIBS],
[AC_REQUIRE([AC_PATH_XTRA])
AC_REQUIRE([_R_TCLTK_CONFIG])
if test -z "${TCLTK_LIBS}"; then
  ## We have to do the work.
  if test "${have_tcltk}" = yes; then
    ## Part 1.  Try finding the tcl library.
    if test -n "${TCL_CONFIG}"; then
      . ${TCL_CONFIG}
      TCLTK_LIBS="${TCL_LIB_SPEC}"
    else
      AC_CHECK_LIB(tcl, Tcl_CreateInterp,
                   [TCLTK_LIBS=-ltcl],
                   [have_tcltk=no])
    fi
  fi
  if test "${have_tcltk}" = yes; then
    ## Part 2.  Try finding the tk library.
    if test -n "${TK_CONFIG}"; then
      . ${TK_CONFIG}
      TCLTK_LIBS="${TCLTK_LIBS} ${TK_LIB_SPEC} ${TK_LIBS}"
    else
      AC_CHECK_LIB(tk, Tk_Init, , , [${TCLTK_LIBS}])
      if test "${ac_cv_lib_tk_Tk_Init}" = no; then
	## Grr, simple -ltk does not work.
	## But maybe we simply need to add X11 libs.
        ## Note that we cannot simply repeat the above test with extra
        ## libs, because AC_CHECK_LIB uses the corresponding cache var
        ## (ac_cv_lib_tk_Tk_Init in our case) if set.  As using unset
        ## is not portable shell programming according to the Autoconf
        ## docs, we use Tk_SafeInit in the test with X11 libs added.
	AC_CHECK_LIB(tk, Tk_SafeInit,
                     [TCLTK_LIBS="${TCLTK_LIBS} -ltk ${X_LIBS}"],
	             [have_tcltk=no],
                     [${TCLTK_LIBS} ${X_LIBS}])
      fi
    fi
  fi
  ## Postprocessing for AIX.
  ## On AIX, the *_LIB_SPEC variables need to contain '-bI:' flags for
  ## the Tcl export file.  These are really flags for ld rather than the
  ## C/C++ compilers, and hence may need protection via '-Wl,'.
  ## We have two ways of doing that:
  ## * Recording whether '-Wl,' is needed for the C or C++ compilers,
  ##   and getting this info into the TCLTK_LIBS make variable ... mess!
  ## * Protecting all entries in TCLTK_LIBS that do not start with '-l'
  ##   or '-L' with '-Wl,' (hoping that all compilers understand this).
  ##   Easy, hence ...
  case "${host_os}" in
    aix*)
      orig_TCLTK_LIBS="${TCLTK_LIBS}"
      TCLTK_LIBS=
      for flag in ${orig_TCLTK_LIBS}; do
        case "${flag}" in
	  -l*|-L*|-Wl,*) ;;
	  *) flag="-Wl,${flag}" ;;
	esac
	TCLTK_LIBS="${TCLTK_LIBS} ${flag}"
      done
      ;;
  esac
  ## Force evaluation ('-ltcl8.3${TCL_DBGX}' and friends ...).
  eval "TCLTK_LIBS=\"${TCLTK_LIBS}\""
fi
])# _R_TCLTK_LIBS

## _R_TCLTK_WORKS
## --------------
## Check whether compiling and linking code using Tcl/Tk works.
## Set shell variable r_cv_tcltk_works to 'yes' or 'no' accordingly.
AC_DEFUN([_R_TCLTK_WORKS],
[AC_CACHE_CHECK([whether compiling/linking Tcl/Tk code works],
                [r_cv_tcltk_works],
[AC_LANG_PUSH(C)
r_save_CPPFLAGS="${CPPFLAGS}"
r_save_LIBS="${LIBS}"
CPPFLAGS="${CPPFLAGS} ${TCLTK_CPPFLAGS}"
LIBS="${LIBS} ${TCLTK_LIBS}"
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[#include <tcl.h>
#include <tk.h>
]],
[[static char * p1 = (char *) Tcl_Init;
static char * p2 = (char *) Tk_Init;
]])],
r_cv_tcltk_works=yes,
r_cv_tcltk_works=no)
CPPFLAGS="${r_save_CPPFLAGS}"
LIBS="${r_save_LIBS}"
AC_LANG_POP(C)])
])# _R_TCLTK_WORKS

## R_TCLTK
## -------
AC_DEFUN([R_TCLTK],
[if test "${want_tcltk}" = yes; then
  have_tcltk=yes
  ## (Note that the subsequent 3 macros assume that have_tcltk has been
  ## set appropriately.)
  _R_TCLTK_CONFIG
  _R_TCLTK_CPPFLAGS  
  _R_TCLTK_LIBS
  if test "${have_tcltk}" = yes; then
    _R_TCLTK_WORKS
    have_tcltk=${r_cv_tcltk_works}
  fi
else
  have_tcltk=no
  ## Just making sure.
  TCLTK_CPPFLAGS=
  TCLTK_LIBS=
fi
if test "${have_tcltk}" = yes; then
  AC_DEFINE(HAVE_TCLTK, 1,
            [Define if you have the Tcl/Tk headers and libraries and
	     want Tcl/Tk support to be built.])
  use_tcltk=yes
else
  use_tcltk=no
fi
AC_SUBST(TCLTK_CPPFLAGS)
AC_SUBST(TCLTK_LIBS)
AC_SUBST(use_tcltk)
])# R_TCLTK

## R_BLAS_LIBS
## -----------
## Look for a library that implements the BLAS linear-algebra interface
## (see http://www.netlib.org/blas/).  On success, sets BLAS_LIBS to the
## requisite library linkages.
##
## This is based on ACX_BLAS by Steven G. Johnson <stevenj@alum.mit.edu>
## from the Official Autoconf Macro Archive
## (http://www.gnu.org/software/ac-archive/htmldoc/acx_blas.m4),
## with the following changes:
## * We also handle HPUX .sl command line specifications.
## * We explictly deal with the case of f2c.  Most likely pointless.
## * We only care about the Fortran 77 interface to Atlas, hence do not
##   test for -lcblas.
## * We do not use BLAS libs that caused problems in the past: Alpha
##   CXML and DXML, and SGI SCSL and SGIMATH (marked with COMMENT tags).
## * As we link with $BLAS_LIBS $FLIBS $LIBS (in that order), we use the
##   same order in the tests.
## * We do not use ACTION-IF-FOUND and ACTION-IF-NOT-FOUND.
## The sunperf test calls the library as now required.
## Based on acx_blas.m4 version 1.2 (2001-12-13)
AC_DEFUN([R_BLAS_LIBS],
[AC_REQUIRE([R_PROG_F77_FLIBS])
AC_REQUIRE([R_PROG_F77_APPEND_UNDERSCORE])
AC_REQUIRE([R_PROG_F2C_FLIBS])

acx_blas_ok=no
case "${with_blas}" in
  yes | "") ;;
  no) acx_blas_ok=disable ;;
  -* | */* | *.a | *.so | *.so.* | *.sl | *.sl.* | *.o)
    BLAS_LIBS="${with_blas}" 
    ;;
  *) BLAS_LIBS="-l${with_blas}" ;;
esac

if test "${r_cv_prog_f77_append_underscore}" = yes \
  || test -n "${F2C}"; then
  dgemm=dgemm_
  sgemm=sgemm_
else
  dgemm=dgemm
  sgemm=sgemm
fi

acx_blas_save_LIBS="${LIBS}"
LIBS="${FLIBS} ${LIBS}"

## First, check BLAS_LIBS environment variable
if test "${acx_blas_ok}" = no; then
  if test "x${BLAS_LIBS}" != x; then
    r_save_LIBS="${LIBS}"; LIBS="${BLAS_LIBS} ${LIBS}"
    AC_MSG_CHECKING([for ${sgemm} in ${BLAS_LIBS}])
    AC_TRY_LINK_FUNC(${sgemm}, [acx_blas_ok=yes], [BLAS_LIBS=""])
    AC_MSG_RESULT([${acx_blas_ok}])
    LIBS="${r_save_LIBS}"
  fi
fi

## BLAS linked to by default?  (happens on some supercomputers)
if test "${acx_blas_ok}" = no; then
  AC_CHECK_FUNC(${sgemm}, [acx_blas_ok=yes])
fi

## BLAS in ATLAS library?  (http://math-atlas.sourceforge.net/)
if test "${acx_blas_ok}" = no; then
  AC_CHECK_LIB(atlas, ATL_xerbla,
               [AC_CHECK_LIB(f77blas, ${sgemm},
                             [acx_blas_ok=yes
                              BLAS_LIBS="-lf77blas -latlas"],
			     [], [-latlas])])
fi

## BLAS in PhiPACK libraries?  (requires generic BLAS lib, too)
if test "${acx_blas_ok}" = no; then
  AC_CHECK_LIB(blas, ${sgemm},
	       [AC_CHECK_LIB(dgemm, $dgemm,
		             [AC_CHECK_LIB(sgemm, ${sgemm},
			                   [acx_blas_ok=yes
                                            BLAS_LIBS="-lsgemm -ldgemm -lblas"],
			                   [], [-lblas])],
			     [], [-lblas])])
fi

## <COMMENT>
## ## BLAS in Alpha CXML library?
## if test "${acx_blas_ok}" = no; then
##   AC_CHECK_LIB(cxml, ${sgemm},
##                [acx_blas_ok=yes; BLAS_LIBS="-lcxml"])
## fi
## </COMMENT>
  
## <COMMENT>
## # BLAS in Alpha DXML library? (now called CXML, see above)
## if test "${acx_blas_ok}" = no; then
##   AC_CHECK_LIB(dxml, ${sgemm},
##                [acx_blas_ok=yes; BLAS_LIBS="-ldxml"])
## fi
## </COMMENT>

## BLAS in Sun Performance library?
## Some versions require -xlic_lib=sunperf: -lsunperf will not work
## Not sure whether -lsunmath is required, but it helps anyway
if test "${acx_blas_ok}" = no; then
  if test "x$GCC" != xyes; then # only works with Sun CC
     AC_MSG_CHECKING([for ${sgemm} in -lsunperf])
     r_save_LIBS="${LIBS}"
     LIBS="-xlic_lib=sunperf -lsunmath ${LIBS}"
     AC_TRY_LINK_FUNC([${sgemm}], [R_sunperf=yes], [R_sunperf=no])
     if test "${R_sunperf}" = yes; then
        BLAS_LIBS="-xlic_lib=sunperf -lsunmath"
	acx_blas_ok=yes
     fi
     LIBS="${r_save_LIBS}"
     AC_MSG_RESULT([${acx_blas_ok}])
  fi
fi

## <COMMENT>
## ## BLAS in SCSL library?  (SGI/Cray Scientific Library)
## if test "${acx_blas_ok}" = no; then
##   AC_CHECK_LIB(scs, ${sgemm},
##                [acx_blas_ok=yes; BLAS_LIBS="-lscs"])
## fi
## </COMMENT>
 
## <COMMENT>
## ## BLAS in SGIMATH library?
## if test "${acx_blas_ok}" = no; then
##   AC_CHECK_LIB(complib.sgimath, ${sgemm},
##                [acx_blas_ok=yes; BLAS_LIBS="-lcomplib.sgimath"])
## fi
## </COMMENT>

## BLAS in IBM ESSL library? (requires generic BLAS lib, too)
if test "${acx_blas_ok}" = no; then
  AC_CHECK_LIB(blas, ${sgemm},
	       [AC_CHECK_LIB(essl, ${sgemm},
			     [acx_blas_ok=yes
                              BLAS_LIBS="-lessl -lblas"],
			     [], [-lblas ${FLIBS}])])
fi

## Generic BLAS library?
if test "${acx_blas_ok}" = no; then
  AC_CHECK_LIB(blas, ${sgemm},
               [acx_blas_ok=yes; BLAS_LIBS="-lblas"])
fi

LIBS="${acx_blas_save_LIBS}"

AC_SUBST(BLAS_LIBS)
])# R_BLAS_LIBS

## R_LAPACK_LIBS
## -------------
## Look for a library that implements LAPACK (see
## http://www.netlib.org/lapack/).  On success, sets LAPACK_LIBS to the
## requisite library linkages.  Only used by the lapack module at
## present. 
##
## This is roughly based on ACX_LAPACK by Steven G. Johnson
## <stevenj@alum.mit.edu> from the Official Autoconf Macro Archive
## (http://www.gnu.org/software/ac-archive/htmldoc/acx_lapack.m4),
## with the following changes:
## * We also handle HPUX .sl command line specifications.
## * We explictly deal with the case of f2c.  Most likely pointless.
## * We test for a LAPACK_LIBS environment variable after checking
##   whether LAPACK is already linked (see below).
## * We do not test for the generic lapack_rs6k library (why not?).
## * As we link with $LAPACK_LIBS $BLAS_LIBS $FLIBS $LIBS (in that
##   order), we use the same order in the tests.
## * We do not use ACTION-IF-FOUND and ACTION-IF-NOT-FOUND.
## Note that Debian ATLAS has LAPACK libs in /usr/lib/atlas (or $arch
## variants) which should be used if ATLAS is used for BLAS, and not
## found at configure time but used at run time ...
## Note also that (see R-admin) that our main intention is to allow a
## LAPACK-containing BLAS to be used ... there are too many slow or
## broken LAPACKs out there.
## Based on acx_lapack.m4 version 1.3 (2002-03-12).

AC_DEFUN([R_LAPACK_LIBS],
[AC_REQUIRE([R_PROG_F77_FLIBS])
AC_REQUIRE([R_PROG_F77_APPEND_UNDERSCORE])
AC_REQUIRE([R_PROG_F2C_FLIBS])
AC_REQUIRE([R_BLAS_LIBS])

acx_lapack_ok=no
case "${with_lapack}" in
  yes | "") ;;
  no) acx_lapack_ok=disable ;;
  -* | */* | *.a | *.so | *.so.* | *.sl | *.sl.* | *.o)
    LAPACK_LIBS="${with_lapack}" 
    ;;
  *) LAPACK_LIBS="-l${with_lapack}" ;;
esac

if test "${r_cv_prog_f77_append_underscore}" = yes \
  || test -n "${F2C}"; then
  zgeev=zgeev_
else
  zgeev=zgeev
fi

# We cannot use LAPACK if BLAS is not found
if test "x${acx_blas_ok}" != xyes; then
  acx_lapack_ok=noblas
fi

acx_lapack_save_LIBS="${LIBS}"
LIBS="${BLAS_LIBS} ${FLIBS} ${LIBS}"

## LAPACK linked to by default?  (Could be in the BLAS libs.)
if test "${acx_lapack_ok}" = no; then
  AC_CHECK_FUNC(${zgeev}, [acx_lapack_ok=yes])
fi

## Next, check LAPACK_LIBS environment variable
if test "${acx_lapack_ok}" = no; then
  if test "x${LAPACK_LIBS}" != x; then
    r_save_LIBS="${LIBS}"; LIBS="${LAPACK_LIBS} ${LIBS}"
    AC_MSG_CHECKING([for ${zgeev} in ${LAPACK_LIBS}])
    AC_TRY_LINK_FUNC(${zgeev}, [acx_lapack_ok=yes], [LAPACK_LIBS=""])
    AC_MSG_RESULT([${acx_lapack_ok}])
    LIBS="${r_save_LIBS}"
  fi
fi

## LAPACK in Sun Performance library?
## No longer test here as will be picked up by the default test.

## Generic LAPACK library?
if test "${acx_lapack_ok}" = no; then
  AC_CHECK_LIB(lapack, ${zgeev},
               [acx_lapack_ok=yes; LAPACK_LIBS="-llapack"])
fi

LIBS="${acx_lapack_save_LIBS}"

if test "${acx_lapack_ok}" = yes; then
  AC_DEFINE(HAVE_LAPACK, 1,
            [Define if external LAPACK is available.])
fi

AC_SUBST(LAPACK_LIBS)
])# R_LAPACK_LIBS

## R_XDR
## -----
## Try finding XDR library functions and headers.
## FreeBSD in particular needs rpc/types.h before rpc/xdr.h.
AC_DEFUN([R_XDR],
[AC_CHECK_HEADER(rpc/types.h)
if test "${ac_cv_header_rpc_types_h}" = yes ; then
  AC_CHECK_HEADER(rpc/xdr.h, , , [#include <rpc/types.h>])
fi
AC_CACHE_CHECK([for XDR support],
                [r_cv_xdr],
[if test "${ac_cv_header_rpc_types_h}" = yes \
     && test "${ac_cv_header_rpc_xdr_h}" = yes \
     && test "${ac_cv_search_xdr_string}" != no ; then
  r_cv_xdr=yes
else
  r_cv_xdr=no
fi
])
AM_CONDITIONAL(BUILD_XDR, [test "x${r_cv_xdr}" = xno])
])# R_XDR

## R_ZLIB
## ------
## Try finding zlib library and headers.
## We check that both are installed, and that the header >= 1.1.4
## and that gzeof is in the library (which suggests the library
## is also recent enough).
AC_DEFUN([R_ZLIB],
[if test "x${use_zlib}" = xyes; then
  AC_CHECK_LIB(z, gzeof, [have_zlib=yes], [have_zlib=no])
  if test "${have_zlib}" = yes; then
    AC_CHECK_HEADER(zlib.h, [have_zlib=yes], [have_zlib=no])
  fi
  if test "${have_zlib}" = yes; then
    _R_HEADER_ZLIB
    have_zlib=${r_cv_header_zlib_h}
  fi
else
  have_zlib="no"
fi
AC_MSG_CHECKING([whether zlib support needs to be compiled])
if test "${have_zlib}" = yes; then
  AC_MSG_RESULT([no])
  LIBS="-lz ${LIBS}"
else
  AC_MSG_RESULT([yes])
  _R_ZLIB_MMAP
fi
AM_CONDITIONAL(BUILD_ZLIB, [test "x${have_zlib}" = xno])
AM_CONDITIONAL(USE_MMAP_ZLIB,
[test "x${have_zlib}" = xno && test "x${r_cv_zlib_mmap}" = xyes])
])# R_ZLIB

## _R_HEADER_ZLIB
## --------------
## Set shell variable r_cv_header_zlib_h to 'yes' if a recent enough
## zlib.h is found, and to 'no' otherwise.
AC_DEFUN([_R_HEADER_ZLIB],
[AC_CACHE_CHECK([if zlib version >= 1.1.4],
                [r_cv_header_zlib_h],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <string.h>
#include <zlib.h>
int main() {
#ifdef ZLIB_VERSION
  exit(strcmp(ZLIB_VERSION, "1.1.4") < 0);
#else
  exit(1);
#endif
}
]])],
              [r_cv_header_zlib_h=yes],
              [r_cv_header_zlib_h=no],
              [r_cv_header_zlib_h=no])])
])# _R_HEADER_ZLIB

## _R_ZLIB_MMAP
## ------------
AC_DEFUN([_R_ZLIB_MMAP],
[AC_CACHE_CHECK([mmap support for zlib],
                [r_cv_zlib_mmap],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
caddr_t hello() {
  exit(mmap((caddr_t)0, (off_t)0, PROT_READ, MAP_SHARED, 0, (off_t)0)); 
}
]])],
              [r_cv_zlib_mmap=no],
              [r_cv_zlib_mmap=yes],
              [r_cv_zlib_mmap=yes])])
])# _R_ZLIB_MMAP

## R_PCRE
## ------
## Try finding pcre library and headers.
## RedHat puts the headers in /usr/include/pcre.
AC_DEFUN([R_PCRE],
[if test "x${use_pcre}" = xyes; then
  AC_CHECK_LIB(pcre, pcre_fullinfo, [have_pcre=yes], [have_pcre=no])
  if test "${have_pcre}" = yes; then
    AC_CHECK_HEADERS(pcre.h pcre/pcre.h)
    if test "${ac_cv_header_pcre_h}" = no \
	&& test "${ac_cv_header_pcre_pcre_h}" = no; then
      have_pcre=no
    fi
  fi
else
  have_pcre=no
fi
if test "x${have_pcre}" = xyes; then
AC_CACHE_CHECK([if PCRE version >= 4.0], [r_have_pcre4],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#ifdef HAVE_PCRE_PCRE_H
#include <pcre/pcre.h>
#else
#ifdef HAVE_PCRE_H
#include <pcre.h>
#endif
#endif
int main() {
#ifdef PCRE_MAJOR
  exit(PCRE_MAJOR<4);
#else
  exit(1);
#endif
}
]])], [r_have_pcre4=yes], [r_have_pcre4=no], [r_have_pcre4=no])])
fi
if test "x${r_have_pcre4}" = xyes; then
  LIBS="-lpcre ${LIBS}"
fi
AC_MSG_CHECKING([whether PCRE support needs to be compiled])
if test "x${r_have_pcre4}" = xyes; then
  AC_MSG_RESULT([no])
else
  AC_MSG_RESULT([yes])
fi
AM_CONDITIONAL(BUILD_PCRE, [test "x${r_have_pcre4}" != xyes])
])# R_PCRE

## R_BZLIB
## -------
## Try finding bzlib library and headers.
## We check that both are installed,
## and that BZ2_bzlibVersion is in the library.
AC_DEFUN([R_BZLIB],
[if test "x${use_bzlib}" = xyes; then
  AC_CHECK_LIB(bz2, BZ2_bzlibVersion, [have_bzlib=yes], [have_bzlib=no])
  if test "${have_bzlib}" = yes; then
    AC_CHECK_HEADER(bzlib.h, [have_bzlib=yes], [have_bzlib=no])
  fi
else
  have_bzlib=no
fi
AC_MSG_CHECKING([whether bzip2 support needs to be compiled])
if test "x${have_bzlib}" = xyes; then
  AC_MSG_RESULT([no])
  LIBS="-lbz2 ${LIBS}"
else
  AC_MSG_RESULT([yes])
fi
AM_CONDITIONAL(BUILD_BZLIB, [test "x${have_bzlib}" = xno])
])# R_BZLIB

## R_SYS_POSIX_LEAPSECONDS
## -----------------------
## See if your system time functions do not count leap seconds, as
## required by POSIX.
AC_DEFUN([R_SYS_POSIX_LEAPSECONDS],
[AC_CACHE_CHECK([whether leap seconds are treated according to POSIX],
                [r_cv_sys_posix_leapseconds],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <stdlib.h>
#include <time.h>
#include <stdio.h>
#include "confdefs.h"

int main () {
  struct tm *tm;
  time_t ct;

  ctime(&ct);
  ct = ct - (ct % 60);
  tm = gmtime(&ct);
  if(tm->tm_sec == 0) exit(1); else exit(0);
}
]])],
              [r_cv_sys_posix_leapseconds=no],
              [r_cv_sys_posix_leapseconds=yes],
              [r_cv_sys_posix_leapseconds=yes])])
if test "x${r_cv_sys_posix_leapseconds}" = xyes; then
  AC_DEFINE(HAVE_POSIX_LEAPSECONDS, 1,
            [Define if your system time functions do not count leap
	     seconds, as required by POSIX.])
fi
])# R_SYS_POSIX_LEAPSECONDS

### * Miscellaneous

## R_RECOMMENDED_PACKAGES
## ----------------------
## See if the sources for the recommended packages are available.
AC_DEFUN([R_RECOMMENDED_PACKAGES],
[AC_CACHE_CHECK([for recommended packages],
                [r_cv_misc_recommended_packages],
[r_cv_misc_recommended_packages=yes
recommended_pkgs=`grep '^R_PKGS_RECOMMENDED_SOURCES *=' \
  ${srcdir}/share/make/vars.mk | sed 's/.*=//'`
for pkg in ${recommended_pkgs}; do
  n_pkg=`ls ${srcdir}/src/library/Recommended/${pkg}_*.tar.gz | wc -l`
  if test ${n_pkg} -ne 1; then
    r_cv_misc_recommended_packages=no
    break
  fi
done])
use_recommended_packages=${r_cv_misc_recommended_packages}
])# R_RECOMMENDED_PACKAGES

### Local variables: ***
### mode: outline-minor ***
### outline-regexp: "### [*]+" ***
### End: ***
dnl
dnl GNOME_GNORBA_HOOK (script-if-gnorba-found, failflag)
dnl
dnl if failflag is "failure" it aborts if gnorba is not found.
dnl

AC_DEFUN([GNOME_GNORBA_HOOK],[
	GNOME_ORBIT_HOOK([],$2)
	AC_CACHE_CHECK([for gnorba libraries],gnome_cv_gnorba_found,[
		gnome_cv_gnorba_found=no
		if test x$gnome_cv_orbit_found = xyes; then
			GNORBA_CFLAGS="`gnome-config --cflags gnorba gnomeui`"
			GNORBA_LIBS="`gnome-config --libs gnorba gnomeui`"
			if test -n "$GNORBA_LIBS"; then
				gnome_cv_gnorba_found=yes
			fi
		fi
	])
	AM_CONDITIONAL(HAVE_GNORBA, test x$gnome_cv_gnorba_found = xyes)
	if test x$gnome_cv_orbit_found = xyes; then
		$1
		GNORBA_CFLAGS="`gnome-config --cflags gnorba gnomeui`"
		GNORBA_LIBS="`gnome-config --libs gnorba gnomeui`"
		AC_SUBST(GNORBA_CFLAGS)
		AC_SUBST(GNORBA_LIBS)
	else
	    	if test x$2 = xfailure; then
			AC_MSG_ERROR(gnorba library not installed or installation problem)
	    	fi
	fi
])

AC_DEFUN([GNOME_GNORBA_CHECK], [
	GNOME_GNORBA_HOOK([],failure)
])
dnl
dnl GNOME_ORBIT_HOOK (script-if-orbit-found, failflag)
dnl
dnl if failflag is "failure" it aborts if orbit is not found.
dnl

AC_DEFUN([GNOME_ORBIT_HOOK],[
	AC_PATH_PROG(ORBIT_CONFIG,orbit-config,no)
	AC_PATH_PROG(ORBIT_IDL,orbit-idl,no)
	AC_CACHE_CHECK([for working ORBit environment],gnome_cv_orbit_found,[
		if test x$ORBIT_CONFIG = xno -o x$ORBIT_IDL = xno; then
			gnome_cv_orbit_found=no
		else
			gnome_cv_orbit_found=yes
		fi
	])
	AM_CONDITIONAL(HAVE_ORBIT, test x$gnome_cv_orbit_found = xyes)
	if test x$gnome_cv_orbit_found = xyes; then
		$1
		ORBIT_CFLAGS=`orbit-config --cflags client server`
		ORBIT_LIBS=`orbit-config --use-service=name --libs client server`
		AC_SUBST(ORBIT_CFLAGS)
		AC_SUBST(ORBIT_LIBS)
	else
    		if test x$2 = xfailure; then
			AC_MSG_ERROR(ORBit not installed or installation problem)
    		fi
	fi
])

AC_DEFUN([GNOME_ORBIT_CHECK], [
	GNOME_ORBIT_HOOK([],failure)
])
dnl
dnl GNOME_INIT_HOOK (script-if-gnome-enabled, [failflag], [additional-inits])
dnl
dnl if failflag is "fail" then GNOME_INIT_HOOK will abort if gnomeConf.sh
dnl is not found. 
dnl

AC_DEFUN([GNOME_INIT_HOOK],[
	AC_SUBST(GNOME_LIBS)
	AC_SUBST(GNOMEUI_LIBS)
	AC_SUBST(GNOMEGNORBA_LIBS)
	AC_SUBST(GTKXMHTML_LIBS)
	AC_SUBST(ZVT_LIBS)
	AC_SUBST(GNOME_LIBDIR)
	AC_SUBST(GNOME_INCLUDEDIR)

	AC_ARG_WITH(gnome-includes,
        [  --with-gnome-includes=DIR
                          specify location of GNOME headers []], [
	CPPFLAGS="$CPPFLAGS -I$withval"
	])
	
	AC_ARG_WITH(gnome-libs,
        [  --with-gnome-libs=DIR   specify location of GNOME libs []], [
	LIBS="$LIBS -L$withval"
	gnome_prefix=$withval
	])

	if test "x$want_gnome" = xyes; then

	    AC_PATH_PROG(GNOME_CONFIG,gnome-config,no)
	    if test "$GNOME_CONFIG" = "no"; then
	      no_gnome_config="yes"
	    else
	      AC_MSG_CHECKING(if $GNOME_CONFIG works)
	      if $GNOME_CONFIG --libs-only-l gnome >/dev/null 2>&1; then
	        AC_MSG_RESULT(yes)
	        GNOME_GNORBA_HOOK([],$2)
	        GNOME_LIBS="`$GNOME_CONFIG --libs-only-l gnome`"
	        GNOMEUI_LIBS="`$GNOME_CONFIG --libs-only-l gnomeui`"
	        GNOMEGNORBA_LIBS="`$GNOME_CONFIG --libs-only-l gnorba gnomeui`"
	        GTKXMHTML_LIBS="`$GNOME_CONFIG --libs-only-l gtkxmhtml`"
		ZVT_LIBS="`$GNOME_CONFIG --libs-only-l zvt`"
	        GNOME_LIBDIR="`$GNOME_CONFIG --libs-only-L gnorba gnomeui`"
	        GNOME_INCLUDEDIR="`$GNOME_CONFIG --cflags gnorba gnomeui`"
                $1
	      else
	        AC_MSG_RESULT(no)
	        no_gnome_config="yes"
              fi
            fi

	    if test x$gnome_prefix = x; then
	      if test x$exec_prefix = xNONE; then
	        if test x$prefix = xNONE; then
		    gnome_prefix=$ac_default_prefix/lib
	        else
 		    gnome_prefix=$prefix/lib
	        fi
	      else
	        gnome_prefix=`eval echo \`echo $libdir\``
	      fi
	    fi
	
	    if test "$no_gnome_config" = "yes"; then
              AC_MSG_CHECKING(for gnomeConf.sh file in $gnome_prefix)
	      if test -f $gnome_prefix/gnomeConf.sh; then
	        AC_MSG_RESULT(found)
	        echo "loading gnome configuration from" \
		     "$gnome_prefix/gnomeConf.sh"
	        . $gnome_prefix/gnomeConf.sh
	        $1
	      else
	        AC_MSG_RESULT(not found)
 	        if test x$2 = xfail; then
	          AC_MSG_ERROR(Could not find the gnomeConf.sh file that is generated by gnome-libs install)
 	        fi
	      fi
            fi
	fi

	if test -n "$3"; then
	  n="$3"
	  for i in $n; do
	    AC_MSG_CHECKING(extra library \"$i\")
	    case $i in 
	      applets)
		AC_SUBST(GNOME_APPLETS_LIBS)
		GNOME_APPLETS_LIBS=`$GNOME_CONFIG --libs-only-l applets`
		AC_MSG_RESULT($GNOME_APPLETS_LIBS);;
	      capplet)
		AC_SUBST(GNOME_CAPPLET_LIBS)
		GNOME_CAPPLET_LIBS=`$GNOME_CONFIG --libs-only-l capplet`
		AC_MSG_RESULT($GNOME_CAPPLET_LIBS);;
	      *)
		AC_MSG_RESULT(unknown library)
	    esac
	  done
	fi
])

dnl
dnl GNOME_INIT ([additional-inits])
dnl

AC_DEFUN([GNOME_INIT],[
	GNOME_INIT_HOOK([],fail,$1)
])
# a macro to get the libs/cflags for libglade
# serial 1

dnl AM_PATH_LIBGLADE([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]])
dnl Test to see if libglade is installed, and define LIBGLADE_CFLAGS, LIBS
dnl
AC_DEFUN(AM_PATH_LIBGLADE,
[dnl
dnl Get the cflags and libraries from the libglade-config script
dnl
AC_ARG_WITH(libglade-config,
[  --with-libglade-config=LIBGLADE_CONFIG
                          specify location of libglade-config []],
LIBGLADE_CONFIG="$withval")

module_args=
for module in . $3; do
  case "$module" in
    gnome)
      module_args="$module_args gnome"
      ;;
    bonobo)
      module_args="$module_args bonobo"
      ;;
    gnomedb)
      module_args="$module_args gnomedb"
      ;;
  esac
done

AC_PATH_PROG(LIBGLADE_CONFIG, libglade-config, no)
AC_MSG_CHECKING(for libglade)
if test "$LIBGLADE_CONFIG" = "no"; then
  AC_MSG_RESULT(no)
  ifelse([$2], , :, [$2])
else
  if $LIBGLADE_CONFIG --check $module_args; then
    LIBGLADE_CFLAGS=`$LIBGLADE_CONFIG --cflags $module_args`
    LIBGLADE_LIBS=`$LIBGLADE_CONFIG --libs $module_args`
    AC_MSG_RESULT(yes)
    ifelse([$1], , :, [$1])
  else
    echo "*** libglade was not compiled with support for $module_args" 1>&2
    AC_MSG_RESULT(no)
    ifelse([$2], , :, [$2])
  fi
fi
AC_SUBST(LIBGLADE_CFLAGS)
AC_SUBST(LIBGLADE_LIBS)
])
# libtool.m4 - Configure libtool for the host system. -*-Shell-script-*-
## Copyright 1996, 1997, 1998, 1999, 2000, 2001
## Free Software Foundation, Inc.
## Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
##
## As a special exception to the GNU General Public License, if you
## distribute this file as part of a program that contains a
## configuration script generated by Autoconf, you may include it under
## the same distribution terms that you use for the rest of that program.

# serial 46 AC_PROG_LIBTOOL

AC_DEFUN([AC_PROG_LIBTOOL],
[AC_REQUIRE([AC_LIBTOOL_SETUP])dnl

# This can be used to rebuild libtool when needed
LIBTOOL_DEPS="$ac_aux_dir/ltmain.sh"

# Always use our own libtool.
LIBTOOL='$(SHELL) $(top_builddir)/libtool'
AC_SUBST(LIBTOOL)dnl

# Prevent multiple expansion
define([AC_PROG_LIBTOOL], [])
])

AC_DEFUN([AC_LIBTOOL_SETUP],
[AC_PREREQ(2.13)dnl
AC_REQUIRE([AC_ENABLE_SHARED])dnl
AC_REQUIRE([AC_ENABLE_STATIC])dnl
AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_CANONICAL_BUILD])dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_LD])dnl
AC_REQUIRE([AC_PROG_LD_RELOAD_FLAG])dnl
AC_REQUIRE([AC_PROG_NM])dnl
AC_REQUIRE([LT_AC_PROG_SED])dnl

AC_REQUIRE([AC_PROG_LN_S])dnl
AC_REQUIRE([AC_DEPLIBS_CHECK_METHOD])dnl
AC_REQUIRE([AC_OBJEXT])dnl
AC_REQUIRE([AC_EXEEXT])dnl
dnl

_LT_AC_PROG_ECHO_BACKSLASH
# Only perform the check for file, if the check method requires it
case $deplibs_check_method in
file_magic*)
  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
    AC_PATH_MAGIC
  fi
  ;;
esac

AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_CHECK_TOOL(STRIP, strip, :)

ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN], enable_dlopen=yes, enable_dlopen=no)
ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
enable_win32_dll=yes, enable_win32_dll=no)

AC_ARG_ENABLE(libtool-lock,
  [  --disable-libtool-lock  avoid locking (might break parallel builds)])
test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes

# Some flags need to be propagated to the compiler or linker for good
# libtool support.
case $host in
*-*-irix6*)
  # Find out which ABI we are using.
  echo '[#]line __oline__ "configure"' > conftest.$ac_ext
  if AC_TRY_EVAL(ac_compile); then
    case `/usr/bin/file conftest.$ac_objext` in
    *32-bit*)
      LD="${LD-ld} -32"
      ;;
    *N32*)
      LD="${LD-ld} -n32"
      ;;
    *64-bit*)
      LD="${LD-ld} -64"
      ;;
    esac
  fi
  rm -rf conftest*
  ;;

*-*-sco3.2v5*)
  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
  SAVE_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS -belf"
  AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
    [AC_LANG_SAVE
     AC_LANG_C
     AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
     AC_LANG_RESTORE])
  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
    CFLAGS="$SAVE_CFLAGS"
  fi
  ;;

ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
[*-*-cygwin* | *-*-mingw* | *-*-pw32*)
  AC_CHECK_TOOL(DLLTOOL, dlltool, false)
  AC_CHECK_TOOL(AS, as, false)
  AC_CHECK_TOOL(OBJDUMP, objdump, false)

  # recent cygwin and mingw systems supply a stub DllMain which the user
  # can override, but on older systems we have to supply one
  AC_CACHE_CHECK([if libtool should supply DllMain function], lt_cv_need_dllmain,
    [AC_TRY_LINK([],
      [extern int __attribute__((__stdcall__)) DllMain(void*, int, void*);
      DllMain (0, 0, 0);],
      [lt_cv_need_dllmain=no],[lt_cv_need_dllmain=yes])])

  case $host/$CC in
  *-*-cygwin*/gcc*-mno-cygwin*|*-*-mingw*)
    # old mingw systems require "-dll" to link a DLL, while more recent ones
    # require "-mdll"
    SAVE_CFLAGS="$CFLAGS"
    CFLAGS="$CFLAGS -mdll"
    AC_CACHE_CHECK([how to link DLLs], lt_cv_cc_dll_switch,
      [AC_TRY_LINK([], [], [lt_cv_cc_dll_switch=-mdll],[lt_cv_cc_dll_switch=-dll])])
    CFLAGS="$SAVE_CFLAGS" ;;
  *-*-cygwin* | *-*-pw32*)
    # cygwin systems need to pass --dll to the linker, and not link
    # crt.o which will require a WinMain@16 definition.
    lt_cv_cc_dll_switch="-Wl,--dll -nostartfiles" ;;
  esac
  ;;
  ])
esac

_LT_AC_LTCONFIG_HACK

])

# AC_LIBTOOL_HEADER_ASSERT
# ------------------------
AC_DEFUN([AC_LIBTOOL_HEADER_ASSERT],
[AC_CACHE_CHECK([whether $CC supports assert without backlinking],
    [lt_cv_func_assert_works],
    [case $host in
    *-*-solaris*)
      if test "$GCC" = yes && test "$with_gnu_ld" != yes; then
        case `$CC --version 2>/dev/null` in
        [[12]].*) lt_cv_func_assert_works=no ;;
        *)        lt_cv_func_assert_works=yes ;;
        esac
      fi
      ;;
    esac])

if test "x$lt_cv_func_assert_works" = xyes; then
  AC_CHECK_HEADERS(assert.h)
fi
])# AC_LIBTOOL_HEADER_ASSERT

# _LT_AC_CHECK_DLFCN
# --------------------
AC_DEFUN([_LT_AC_CHECK_DLFCN],
[AC_CHECK_HEADERS(dlfcn.h)
])# _LT_AC_CHECK_DLFCN

# AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE
# ---------------------------------
AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE],
[AC_REQUIRE([AC_CANONICAL_HOST])
AC_REQUIRE([AC_PROG_NM])
AC_REQUIRE([AC_OBJEXT])
# Check for command to grab the raw symbol name followed by C symbol from nm.
AC_MSG_CHECKING([command to parse $NM output])
AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe], [dnl

# These are sane defaults that work on at least a few old systems.
# [They come from Ultrix.  What could be older than Ultrix?!! ;)]

# Character class describing NM global symbol codes.
symcode='[[BCDEGRST]]'

# Regexp to match symbols that can be accessed directly from C.
sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'

# Transform the above into a raw symbol and a C symbol.
symxfrm='\1 \2\3 \3'

# Transform an extracted symbol line into a proper C declaration
lt_cv_global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'"

# Transform an extracted symbol line into symbol name and symbol address
lt_cv_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\) $/  {\\\"\1\\\", (lt_ptr) 0},/p' -e 's/^$symcode \([[^ ]]*\) \([[^ ]]*\)$/  {\"\2\", (lt_ptr) \&\2},/p'"

# Define system-specific variables.
case $host_os in
aix*)
  symcode='[[BCDT]]'
  ;;
cygwin* | mingw* | pw32*)
  symcode='[[ABCDGISTW]]'
  ;;
hpux*) # Its linker distinguishes data from code symbols
  lt_cv_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
  lt_cv_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\) $/  {\\\"\1\\\", (lt_ptr) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/  {\"\2\", (lt_ptr) \&\2},/p'"
  ;;
irix* | nonstopux*)
  symcode='[[BCDEGRST]]'
  ;;
osf*)
  symcode='[[BCDEGQRST]]'
  ;;
solaris* | sysv5*)
  symcode='[[BDT]]'
  ;;
sysv4)
  symcode='[[DFNSTU]]'
  ;;
esac

# Handle CRLF in mingw tool chain
opt_cr=
case $host_os in
mingw*)
  opt_cr=`echo 'x\{0,1\}' | tr x '\015'` # option cr in regexp
  ;;
esac

# If we're using GNU nm, then use its standard symbol codes.
if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then
  symcode='[[ABCDGISTW]]'
fi

# Try without a prefix undercore, then with it.
for ac_symprfx in "" "_"; do

  # Write the raw and C identifiers.
lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ 	]]\($symcode$symcode*\)[[ 	]][[ 	]]*\($ac_symprfx\)$sympat$opt_cr$/$symxfrm/p'"

  # Check to see that the pipe works correctly.
  pipe_works=no
  rm -f conftest*
  cat > conftest.$ac_ext <<EOF
#ifdef __cplusplus
extern "C" {
#endif
char nm_test_var;
void nm_test_func(){}
#ifdef __cplusplus
}
#endif
int main(){nm_test_var='a';nm_test_func();return(0);}
EOF

  if AC_TRY_EVAL(ac_compile); then
    # Now try to grab the symbols.
    nlist=conftest.nm
    if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist) && test -s "$nlist"; then
      # Try sorting and uniquifying the output.
      if sort "$nlist" | uniq > "$nlist"T; then
	mv -f "$nlist"T "$nlist"
      else
	rm -f "$nlist"T
      fi

      # Make sure that we snagged all the symbols we need.
      if egrep ' nm_test_var$' "$nlist" >/dev/null; then
	if egrep ' nm_test_func$' "$nlist" >/dev/null; then
	  cat <<EOF > conftest.$ac_ext
#ifdef __cplusplus
extern "C" {
#endif

EOF
	  # Now generate the symbol file.
	  eval "$lt_cv_global_symbol_to_cdecl"' < "$nlist" >> conftest.$ac_ext'

	  cat <<EOF >> conftest.$ac_ext
#if defined (__STDC__) && __STDC__
# define lt_ptr void *
#else
# define lt_ptr char *
# define const
#endif

/* The mapping between symbol names and symbols. */
const struct {
  const char *name;
  lt_ptr address;
}
lt_preloaded_symbols[[]] =
{
EOF
	  sed "s/^$symcode$symcode* \(.*\) \(.*\)$/  {\"\2\", (lt_ptr) \&\2},/" < "$nlist" >> conftest.$ac_ext
	  cat <<\EOF >> conftest.$ac_ext
  {0, (lt_ptr) 0}
};

#ifdef __cplusplus
}
#endif
EOF
	  # Now try linking the two files.
	  mv conftest.$ac_objext conftstm.$ac_objext
	  save_LIBS="$LIBS"
	  save_CFLAGS="$CFLAGS"
	  LIBS="conftstm.$ac_objext"
	  CFLAGS="$CFLAGS$no_builtin_flag"
	  if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then
	    pipe_works=yes
	  fi
	  LIBS="$save_LIBS"
	  CFLAGS="$save_CFLAGS"
	else
	  echo "cannot find nm_test_func in $nlist" >&AC_FD_CC
	fi
      else
	echo "cannot find nm_test_var in $nlist" >&AC_FD_CC
      fi
    else
      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AC_FD_CC
    fi
  else
    echo "$progname: failed program was:" >&AC_FD_CC
    cat conftest.$ac_ext >&5
  fi
  rm -f conftest* conftst*

  # Do not use the global_symbol_pipe unless it works.
  if test "$pipe_works" = yes; then
    break
  else
    lt_cv_sys_global_symbol_pipe=
  fi
done
])
global_symbol_pipe="$lt_cv_sys_global_symbol_pipe"
if test -z "$lt_cv_sys_global_symbol_pipe"; then
  global_symbol_to_cdecl=
  global_symbol_to_c_name_address=
else
  global_symbol_to_cdecl="$lt_cv_global_symbol_to_cdecl"
  global_symbol_to_c_name_address="$lt_cv_global_symbol_to_c_name_address"
fi
if test -z "$global_symbol_pipe$global_symbol_to_cdec$global_symbol_to_c_name_address";
then
  AC_MSG_RESULT(failed)
else
  AC_MSG_RESULT(ok)
fi
]) # AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE

# _LT_AC_LIBTOOL_SYS_PATH_SEPARATOR
# ---------------------------------
AC_DEFUN([_LT_AC_LIBTOOL_SYS_PATH_SEPARATOR],
[# Find the correct PATH separator.  Usually this is `:', but
# DJGPP uses `;' like DOS.
if test "X${PATH_SEPARATOR+set}" != Xset; then
  UNAME=${UNAME-`uname 2>/dev/null`}
  case X$UNAME in
    *-DOS) lt_cv_sys_path_separator=';' ;;
    *)     lt_cv_sys_path_separator=':' ;;
  esac
  PATH_SEPARATOR=$lt_cv_sys_path_separator
fi
])# _LT_AC_LIBTOOL_SYS_PATH_SEPARATOR

# _LT_AC_PROG_ECHO_BACKSLASH
# --------------------------
# Add some code to the start of the generated configure script which
# will find an echo command which doesn't interpret backslashes.
AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH],
[ifdef([AC_DIVERSION_NOTICE], [AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)],
			      [AC_DIVERT_PUSH(NOTICE)])
_LT_AC_LIBTOOL_SYS_PATH_SEPARATOR

# Check that we are running under the correct shell.
SHELL=${CONFIG_SHELL-/bin/sh}

case X$ECHO in
X*--fallback-echo)
  # Remove one level of quotation (which was required for Make).
  ECHO=`echo "$ECHO" | sed 's,\\\\\[$]\\[$]0,'[$]0','`
  ;;
esac

echo=${ECHO-echo}
if test "X[$]1" = X--no-reexec; then
  # Discard the --no-reexec flag, and continue.
  shift
elif test "X[$]1" = X--fallback-echo; then
  # Avoid inline document here, it may be left over
  :
elif test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then
  # Yippee, $echo works!
  :
else
  # Restart under the correct shell.
  exec $SHELL "[$]0" --no-reexec ${1+"[$]@"}
fi

if test "X[$]1" = X--fallback-echo; then
  # used as fallback echo
  shift
  cat <<EOF
$*
EOF
  exit 0
fi

# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
if test "X${CDPATH+set}" = Xset; then CDPATH=:; export CDPATH; fi

if test -z "$ECHO"; then
if test "X${echo_test_string+set}" != Xset; then
# find a string as large as possible, as long as the shell can cope with it
  for cmd in 'sed 50q "[$]0"' 'sed 20q "[$]0"' 'sed 10q "[$]0"' 'sed 2q "[$]0"' 'echo test'; do
    # expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
    if (echo_test_string="`eval $cmd`") 2>/dev/null &&
       echo_test_string="`eval $cmd`" &&
       (test "X$echo_test_string" = "X$echo_test_string") 2>/dev/null
    then
      break
    fi
  done
fi

if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
   echo_testing_string=`($echo "$echo_test_string") 2>/dev/null` &&
   test "X$echo_testing_string" = "X$echo_test_string"; then
  :
else
  # The Solaris, AIX, and Digital Unix default echo programs unquote
  # backslashes.  This makes it impossible to quote backslashes using
  #   echo "$something" | sed 's/\\/\\\\/g'
  #
  # So, first we look for a working echo in the user's PATH.

  IFS="${IFS= 	}"; save_ifs="$IFS"; IFS=$PATH_SEPARATOR
  for dir in $PATH /usr/ucb; do
    if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&
       test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
       echo_testing_string=`($dir/echo "$echo_test_string") 2>/dev/null` &&
       test "X$echo_testing_string" = "X$echo_test_string"; then
      echo="$dir/echo"
      break
    fi
  done
  IFS="$save_ifs"

  if test "X$echo" = Xecho; then
    # We didn't find a better echo, so look for alternatives.
    if test "X`(print -r '\t') 2>/dev/null`" = 'X\t' &&
       echo_testing_string=`(print -r "$echo_test_string") 2>/dev/null` &&
       test "X$echo_testing_string" = "X$echo_test_string"; then
      # This shell has a builtin print -r that does the trick.
      echo='print -r'
    elif (test -f /bin/ksh || test -f /bin/ksh$ac_exeext) &&
	 test "X$CONFIG_SHELL" != X/bin/ksh; then
      # If we have ksh, try running configure again with it.
      ORIGINAL_CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
      export ORIGINAL_CONFIG_SHELL
      CONFIG_SHELL=/bin/ksh
      export CONFIG_SHELL
      exec $CONFIG_SHELL "[$]0" --no-reexec ${1+"[$]@"}
    else
      # Try using printf.
      echo='printf %s\n'
      if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
	 echo_testing_string=`($echo "$echo_test_string") 2>/dev/null` &&
	 test "X$echo_testing_string" = "X$echo_test_string"; then
	# Cool, printf works
	:
      elif echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&
	   test "X$echo_testing_string" = 'X\t' &&
	   echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
	   test "X$echo_testing_string" = "X$echo_test_string"; then
	CONFIG_SHELL=$ORIGINAL_CONFIG_SHELL
	export CONFIG_SHELL
	SHELL="$CONFIG_SHELL"
	export SHELL
	echo="$CONFIG_SHELL [$]0 --fallback-echo"
      elif echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&
	   test "X$echo_testing_string" = 'X\t' &&
	   echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
	   test "X$echo_testing_string" = "X$echo_test_string"; then
	echo="$CONFIG_SHELL [$]0 --fallback-echo"
      else
	# maybe with a smaller string...
	prev=:

	for cmd in 'echo test' 'sed 2q "[$]0"' 'sed 10q "[$]0"' 'sed 20q "[$]0"' 'sed 50q "[$]0"'; do
	  if (test "X$echo_test_string" = "X`eval $cmd`") 2>/dev/null
	  then
	    break
	  fi
	  prev="$cmd"
	done

	if test "$prev" != 'sed 50q "[$]0"'; then
	  echo_test_string=`eval $prev`
	  export echo_test_string
	  exec ${ORIGINAL_CONFIG_SHELL-${CONFIG_SHELL-/bin/sh}} "[$]0" ${1+"[$]@"}
	else
	  # Oops.  We lost completely, so just stick with echo.
	  echo=echo
	fi
      fi
    fi
  fi
fi
fi

# Copy echo and quote the copy suitably for passing to libtool from
# the Makefile, instead of quoting the original, which is used later.
ECHO=$echo
if test "X$ECHO" = "X$CONFIG_SHELL [$]0 --fallback-echo"; then
   ECHO="$CONFIG_SHELL \\\$\[$]0 --fallback-echo"
fi

AC_SUBST(ECHO)
AC_DIVERT_POP
])# _LT_AC_PROG_ECHO_BACKSLASH

# _LT_AC_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
#                           ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
# ------------------------------------------------------------------
AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF],
[if test "$cross_compiling" = yes; then :
  [$4]
else
  AC_REQUIRE([_LT_AC_CHECK_DLFCN])dnl
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<EOF
[#line __oline__ "configure"
#include "confdefs.h"

#if HAVE_DLFCN_H
#include <dlfcn.h>
#endif

#include <stdio.h>

#ifdef RTLD_GLOBAL
#  define LT_DLGLOBAL		RTLD_GLOBAL
#else
#  ifdef DL_GLOBAL
#    define LT_DLGLOBAL		DL_GLOBAL
#  else
#    define LT_DLGLOBAL		0
#  endif
#endif

/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
   find out it does not work in some platform. */
#ifndef LT_DLLAZY_OR_NOW
#  ifdef RTLD_LAZY
#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
#  else
#    ifdef DL_LAZY
#      define LT_DLLAZY_OR_NOW		DL_LAZY
#    else
#      ifdef RTLD_NOW
#        define LT_DLLAZY_OR_NOW	RTLD_NOW
#      else
#        ifdef DL_NOW
#          define LT_DLLAZY_OR_NOW	DL_NOW
#        else
#          define LT_DLLAZY_OR_NOW	0
#        endif
#      endif
#    endif
#  endif
#endif

#ifdef __cplusplus
extern "C" void exit (int);
#endif

void fnord() { int i=42;}
int main ()
{
  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
  int status = $lt_dlunknown;

  if (self)
    {
      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
      else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
      /* dlclose (self); */
    }

    exit (status);
}]
EOF
  if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then
    (./conftest; exit; ) 2>/dev/null
    lt_status=$?
    case x$lt_status in
      x$lt_dlno_uscore) $1 ;;
      x$lt_dlneed_uscore) $2 ;;
      x$lt_unknown|x*) $3 ;;
    esac
  else :
    # compilation failed
    $3
  fi
fi
rm -fr conftest*
])# _LT_AC_TRY_DLOPEN_SELF

# AC_LIBTOOL_DLOPEN_SELF
# -------------------
AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF],
[if test "x$enable_dlopen" != xyes; then
  enable_dlopen=unknown
  enable_dlopen_self=unknown
  enable_dlopen_self_static=unknown
else
  lt_cv_dlopen=no
  lt_cv_dlopen_libs=

  case $host_os in
  beos*)
    lt_cv_dlopen="load_add_on"
    lt_cv_dlopen_libs=
    lt_cv_dlopen_self=yes
    ;;

  cygwin* | mingw* | pw32*)
    lt_cv_dlopen="LoadLibrary"
    lt_cv_dlopen_libs=
   ;;

  *)
    AC_CHECK_FUNC([shl_load],
          [lt_cv_dlopen="shl_load"],
      [AC_CHECK_LIB([dld], [shl_load],
            [lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-dld"],
	[AC_CHECK_FUNC([dlopen],
	      [lt_cv_dlopen="dlopen"],
	  [AC_CHECK_LIB([dl], [dlopen],
	        [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],
	    [AC_CHECK_LIB([svld], [dlopen],
	          [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"],
	      [AC_CHECK_LIB([dld], [dld_link],
	            [lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-dld"])
	      ])
	    ])
	  ])
	])
      ])
    ;;
  esac

  if test "x$lt_cv_dlopen" != xno; then
    enable_dlopen=yes
  else
    enable_dlopen=no
  fi

  case $lt_cv_dlopen in
  dlopen)
    save_CPPFLAGS="$CPPFLAGS"
    AC_REQUIRE([_LT_AC_CHECK_DLFCN])dnl
    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"

    save_LDFLAGS="$LDFLAGS"
    eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"

    save_LIBS="$LIBS"
    LIBS="$lt_cv_dlopen_libs $LIBS"

    AC_CACHE_CHECK([whether a program can dlopen itself],
	  lt_cv_dlopen_self, [dnl
	  _LT_AC_TRY_DLOPEN_SELF(
	    lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
	    lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
    ])

    if test "x$lt_cv_dlopen_self" = xyes; then
      LDFLAGS="$LDFLAGS $link_static_flag"
      AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
    	  lt_cv_dlopen_self_static, [dnl
	  _LT_AC_TRY_DLOPEN_SELF(
	    lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
	    lt_cv_dlopen_self_static=no,  lt_cv_dlopen_self_static=cross)
      ])
    fi

    CPPFLAGS="$save_CPPFLAGS"
    LDFLAGS="$save_LDFLAGS"
    LIBS="$save_LIBS"
    ;;
  esac

  case $lt_cv_dlopen_self in
  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
  *) enable_dlopen_self=unknown ;;
  esac

  case $lt_cv_dlopen_self_static in
  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
  *) enable_dlopen_self_static=unknown ;;
  esac
fi
])# AC_LIBTOOL_DLOPEN_SELF

AC_DEFUN([_LT_AC_LTCONFIG_HACK],
[AC_REQUIRE([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])dnl
# Sed substitution that helps us do robust quoting.  It backslashifies
# metacharacters that are still active within double-quoted strings.
Xsed='sed -e s/^X//'
sed_quote_subst='s/\([[\\"\\`$\\\\]]\)/\\\1/g'

# Same as above, but do not quote variable references.
double_quote_subst='s/\([[\\"\\`\\\\]]\)/\\\1/g'

# Sed substitution to delay expansion of an escaped shell variable in a
# double_quote_subst'ed string.
delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'

# Constants:
rm="rm -f"

# Global variables:
default_ofile=libtool
can_build_shared=yes

# All known linkers require a `.a' archive for static linking (except M$VC,
# which needs '.lib').
libext=a
ltmain="$ac_aux_dir/ltmain.sh"
ofile="$default_ofile"
with_gnu_ld="$lt_cv_prog_gnu_ld"
need_locks="$enable_libtool_lock"

old_CC="$CC"
old_CFLAGS="$CFLAGS"

# Set sane defaults for various variables
test -z "$AR" && AR=ar
test -z "$AR_FLAGS" && AR_FLAGS=cru
test -z "$AS" && AS=as
test -z "$CC" && CC=cc
test -z "$DLLTOOL" && DLLTOOL=dlltool
test -z "$LD" && LD=ld
test -z "$LN_S" && LN_S="ln -s"
test -z "$MAGIC_CMD" && MAGIC_CMD=file
test -z "$NM" && NM=nm
test -z "$OBJDUMP" && OBJDUMP=objdump
test -z "$RANLIB" && RANLIB=:
test -z "$STRIP" && STRIP=:
test -z "$ac_objext" && ac_objext=o

if test x"$host" != x"$build"; then
  ac_tool_prefix=${host_alias}-
else
  ac_tool_prefix=
fi

# Transform linux* to *-*-linux-gnu*, to support old configure scripts.
case $host_os in
linux-gnu*) ;;
linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
esac

case $host_os in
aix3*)
  # AIX sometimes has problems with the GCC collect2 program.  For some
  # reason, if we set the COLLECT_NAMES environment variable, the problems
  # vanish in a puff of smoke.
  if test "X${COLLECT_NAMES+set}" != Xset; then
    COLLECT_NAMES=
    export COLLECT_NAMES
  fi
  ;;
esac

# Determine commands to create old-style static archives.
old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs'
old_postinstall_cmds='chmod 644 $oldlib'
old_postuninstall_cmds=

if test -n "$RANLIB"; then
  case $host_os in
  openbsd*)
    old_postinstall_cmds="\$RANLIB -t \$oldlib~$old_postinstall_cmds"
    ;;
  *)
    old_postinstall_cmds="\$RANLIB \$oldlib~$old_postinstall_cmds"
    ;;
  esac
  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
fi

# Allow CC to be a program name with arguments.
set dummy $CC
compiler="[$]2"

## FIXME: this should be a separate macro
##
AC_MSG_CHECKING([for objdir])
rm -f .libs 2>/dev/null
mkdir .libs 2>/dev/null
if test -d .libs; then
  objdir=.libs
else
  # MS-DOS does not allow filenames that begin with a dot.
  objdir=_libs
fi
rmdir .libs 2>/dev/null
AC_MSG_RESULT($objdir)
##
## END FIXME


## FIXME: this should be a separate macro
##
AC_ARG_WITH(pic,
[  --with-pic              try to use only PIC/non-PIC objects [default=use both]],
pic_mode="$withval", pic_mode=default)
test -z "$pic_mode" && pic_mode=default

# We assume here that the value for lt_cv_prog_cc_pic will not be cached
# in isolation, and that seeing it set (from the cache) indicates that
# the associated values are set (in the cache) correctly too.
AC_MSG_CHECKING([for $compiler option to produce PIC])
AC_CACHE_VAL(lt_cv_prog_cc_pic,
[ lt_cv_prog_cc_pic=
  lt_cv_prog_cc_shlib=
  lt_cv_prog_cc_wl=
  lt_cv_prog_cc_static=
  lt_cv_prog_cc_no_builtin=
  lt_cv_prog_cc_can_build_shared=$can_build_shared

  if test "$GCC" = yes; then
    lt_cv_prog_cc_wl='-Wl,'
    lt_cv_prog_cc_static='-static'

    case $host_os in
    aix*)
      # Below there is a dirty hack to force normal static linking with -ldl
      # The problem is because libdl dynamically linked with both libc and
      # libC (AIX C++ library), which obviously doesn't included in libraries
      # list by gcc. This cause undefined symbols with -static flags.
      # This hack allows C programs to be linked with "-static -ldl", but
      # not sure about C++ programs.
      lt_cv_prog_cc_static="$lt_cv_prog_cc_static ${lt_cv_prog_cc_wl}-lC"
      ;;
    amigaos*)
      # FIXME: we need at least 68020 code to build shared libraries, but
      # adding the `-m68020' flag to GCC prevents building anything better,
      # like `-m68040'.
      lt_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
      ;;
    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
      # PIC is the default for these OSes.
      ;;
    darwin* | rhapsody*)
      # PIC is the default on this platform
      # Common symbols not allowed in MH_DYLIB files
      lt_cv_prog_cc_pic='-fno-common'
      ;;
    cygwin* | mingw* | pw32* | os2*)
      # This hack is so that the source file can tell whether it is being
      # built for inclusion in a dll (and should export symbols for example).
      lt_cv_prog_cc_pic='-DDLL_EXPORT'
      ;;
    sysv4*MP*)
      if test -d /usr/nec; then
	 lt_cv_prog_cc_pic=-Kconform_pic
      fi
      ;;
    *)
      lt_cv_prog_cc_pic='-fPIC'
      ;;
    esac
  else
    # PORTME Check for PIC flags for the system compiler.
    case $host_os in
    aix3* | aix4* | aix5*)
      lt_cv_prog_cc_wl='-Wl,'
      # All AIX code is PIC.
      if test "$host_cpu" = ia64; then
	# AIX 5 now supports IA64 processor
	lt_cv_prog_cc_static='-Bstatic'
      else
	lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
      fi
      ;;

    hpux9* | hpux10* | hpux11*)
      # Is there a better lt_cv_prog_cc_static that works with the bundled CC?
      lt_cv_prog_cc_wl='-Wl,'
      lt_cv_prog_cc_static="${lt_cv_prog_cc_wl}-a ${lt_cv_prog_cc_wl}archive"
      lt_cv_prog_cc_pic='+Z'
      ;;

    irix5* | irix6* | nonstopux*)
      lt_cv_prog_cc_wl='-Wl,'
      lt_cv_prog_cc_static='-non_shared'
      # PIC (with -KPIC) is the default.
      ;;

    cygwin* | mingw* | pw32* | os2*)
      # This hack is so that the source file can tell whether it is being
      # built for inclusion in a dll (and should export symbols for example).
      lt_cv_prog_cc_pic='-DDLL_EXPORT'
      ;;

    newsos6)
      lt_cv_prog_cc_pic='-KPIC'
      lt_cv_prog_cc_static='-Bstatic'
      ;;

    osf3* | osf4* | osf5*)
      # All OSF/1 code is PIC.
      lt_cv_prog_cc_wl='-Wl,'
      lt_cv_prog_cc_static='-non_shared'
      ;;

    sco3.2v5*)
      lt_cv_prog_cc_pic='-Kpic'
      lt_cv_prog_cc_static='-dn'
      lt_cv_prog_cc_shlib='-belf'
      ;;

    solaris*)
      lt_cv_prog_cc_pic='-KPIC'
      lt_cv_prog_cc_static='-Bstatic'
      lt_cv_prog_cc_wl='-Wl,'
      ;;

    sunos4*)
      lt_cv_prog_cc_pic='-PIC'
      lt_cv_prog_cc_static='-Bstatic'
      lt_cv_prog_cc_wl='-Qoption ld '
      ;;

    sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
      lt_cv_prog_cc_pic='-KPIC'
      lt_cv_prog_cc_static='-Bstatic'
      lt_cv_prog_cc_wl='-Wl,'
      ;;

    uts4*)
      lt_cv_prog_cc_pic='-pic'
      lt_cv_prog_cc_static='-Bstatic'
      ;;

    sysv4*MP*)
      if test -d /usr/nec ;then
	lt_cv_prog_cc_pic='-Kconform_pic'
	lt_cv_prog_cc_static='-Bstatic'
      fi
      ;;

    *)
      lt_cv_prog_cc_can_build_shared=no
      ;;
    esac
  fi
])
if test -z "$lt_cv_prog_cc_pic"; then
  AC_MSG_RESULT([none])
else
  AC_MSG_RESULT([$lt_cv_prog_cc_pic])

  # Check to make sure the pic_flag actually works.
  AC_MSG_CHECKING([if $compiler PIC flag $lt_cv_prog_cc_pic works])
  AC_CACHE_VAL(lt_cv_prog_cc_pic_works, [dnl
    save_CFLAGS="$CFLAGS"
    CFLAGS="$CFLAGS $lt_cv_prog_cc_pic -DPIC"
    AC_TRY_COMPILE([], [], [dnl
      case $host_os in
      hpux9* | hpux10* | hpux11*)
	# On HP-UX, both CC and GCC only warn that PIC is supported... then
	# they create non-PIC objects.  So, if there were any warnings, we
	# assume that PIC is not supported.
	if test -s conftest.err; then
	  lt_cv_prog_cc_pic_works=no
	else
	  lt_cv_prog_cc_pic_works=yes
	fi
	;;
      *)
	lt_cv_prog_cc_pic_works=yes
	;;
      esac
    ], [dnl
      lt_cv_prog_cc_pic_works=no
    ])
    CFLAGS="$save_CFLAGS"
  ])

  if test "X$lt_cv_prog_cc_pic_works" = Xno; then
    lt_cv_prog_cc_pic=
    lt_cv_prog_cc_can_build_shared=no
  else
    lt_cv_prog_cc_pic=" $lt_cv_prog_cc_pic"
  fi

  AC_MSG_RESULT([$lt_cv_prog_cc_pic_works])
fi
##
## END FIXME

# Check for any special shared library compilation flags.
if test -n "$lt_cv_prog_cc_shlib"; then
  AC_MSG_WARN([\`$CC' requires \`$lt_cv_prog_cc_shlib' to build shared libraries])
  if echo "$old_CC $old_CFLAGS " | egrep -e "[[ 	]]$lt_cv_prog_cc_shlib[[ 	]]" >/dev/null; then :
  else
   AC_MSG_WARN([add \`$lt_cv_prog_cc_shlib' to the CC or CFLAGS env variable and reconfigure])
    lt_cv_prog_cc_can_build_shared=no
  fi
fi

## FIXME: this should be a separate macro
##
AC_MSG_CHECKING([if $compiler static flag $lt_cv_prog_cc_static works])
AC_CACHE_VAL([lt_cv_prog_cc_static_works], [dnl
  lt_cv_prog_cc_static_works=no
  save_LDFLAGS="$LDFLAGS"
  LDFLAGS="$LDFLAGS $lt_cv_prog_cc_static"
  AC_TRY_LINK([], [], [lt_cv_prog_cc_static_works=yes])
  LDFLAGS="$save_LDFLAGS"
])

# Belt *and* braces to stop my trousers falling down:
test "X$lt_cv_prog_cc_static_works" = Xno && lt_cv_prog_cc_static=
AC_MSG_RESULT([$lt_cv_prog_cc_static_works])

pic_flag="$lt_cv_prog_cc_pic"
special_shlib_compile_flags="$lt_cv_prog_cc_shlib"
wl="$lt_cv_prog_cc_wl"
link_static_flag="$lt_cv_prog_cc_static"
no_builtin_flag="$lt_cv_prog_cc_no_builtin"
can_build_shared="$lt_cv_prog_cc_can_build_shared"
##
## END FIXME


## FIXME: this should be a separate macro
##
# Check to see if options -o and -c are simultaneously supported by compiler
AC_MSG_CHECKING([if $compiler supports -c -o file.$ac_objext])
AC_CACHE_VAL([lt_cv_compiler_c_o], [
$rm -r conftest 2>/dev/null
mkdir conftest
cd conftest
echo "int some_variable = 0;" > conftest.$ac_ext
mkdir out
# According to Tom Tromey, Ian Lance Taylor reported there are C compilers
# that will create temporary files in the current directory regardless of
# the output directory.  Thus, making CWD read-only will cause this test
# to fail, enabling locking or at least warning the user not to do parallel
# builds.
chmod -w .
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -o out/conftest2.$ac_objext"
compiler_c_o=no
if { (eval echo configure:__oline__: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>out/conftest.err; } && test -s out/conftest2.$ac_objext; then
  # The compiler can only warn and ignore the option if not recognized
  # So say no if there are warnings
  if test -s out/conftest.err; then
    lt_cv_compiler_c_o=no
  else
    lt_cv_compiler_c_o=yes
  fi
else
  # Append any errors to the config.log.
  cat out/conftest.err 1>&AC_FD_CC
  lt_cv_compiler_c_o=no
fi
CFLAGS="$save_CFLAGS"
chmod u+w .
$rm conftest* out/*
rmdir out
cd ..
rmdir conftest
$rm -r conftest 2>/dev/null
])
compiler_c_o=$lt_cv_compiler_c_o
AC_MSG_RESULT([$compiler_c_o])

if test x"$compiler_c_o" = x"yes"; then
  # Check to see if we can write to a .lo
  AC_MSG_CHECKING([if $compiler supports -c -o file.lo])
  AC_CACHE_VAL([lt_cv_compiler_o_lo], [
  lt_cv_compiler_o_lo=no
  save_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS -c -o conftest.lo"
  save_objext="$ac_objext"
  ac_objext=lo
  AC_TRY_COMPILE([], [int some_variable = 0;], [dnl
    # The compiler can only warn and ignore the option if not recognized
    # So say no if there are warnings
    if test -s conftest.err; then
      lt_cv_compiler_o_lo=no
    else
      lt_cv_compiler_o_lo=yes
    fi
  ])
  ac_objext="$save_objext"
  CFLAGS="$save_CFLAGS"
  ])
  compiler_o_lo=$lt_cv_compiler_o_lo
  AC_MSG_RESULT([$compiler_o_lo])
else
  compiler_o_lo=no
fi
##
## END FIXME

## FIXME: this should be a separate macro
##
# Check to see if we can do hard links to lock some files if needed
hard_links="nottested"
if test "$compiler_c_o" = no && test "$need_locks" != no; then
  # do not overwrite the value of need_locks provided by the user
  AC_MSG_CHECKING([if we can lock with hard links])
  hard_links=yes
  $rm conftest*
  ln conftest.a conftest.b 2>/dev/null && hard_links=no
  touch conftest.a
  ln conftest.a conftest.b 2>&5 || hard_links=no
  ln conftest.a conftest.b 2>/dev/null && hard_links=no
  AC_MSG_RESULT([$hard_links])
  if test "$hard_links" = no; then
    AC_MSG_WARN([\`$CC' does not support \`-c -o', so \`make -j' may be unsafe])
    need_locks=warn
  fi
else
  need_locks=no
fi
##
## END FIXME

## FIXME: this should be a separate macro
##
if test "$GCC" = yes; then
  # Check to see if options -fno-rtti -fno-exceptions are supported by compiler
  AC_MSG_CHECKING([if $compiler supports -fno-rtti -fno-exceptions])
  echo "int some_variable = 0;" > conftest.$ac_ext
  save_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS -fno-rtti -fno-exceptions -c conftest.$ac_ext"
  compiler_rtti_exceptions=no
  AC_TRY_COMPILE([], [int some_variable = 0;], [dnl
    # The compiler can only warn and ignore the option if not recognized
    # So say no if there are warnings
    if test -s conftest.err; then
      compiler_rtti_exceptions=no
    else
      compiler_rtti_exceptions=yes
    fi
  ])
  CFLAGS="$save_CFLAGS"
  AC_MSG_RESULT([$compiler_rtti_exceptions])

  if test "$compiler_rtti_exceptions" = "yes"; then
    no_builtin_flag=' -fno-builtin -fno-rtti -fno-exceptions'
  else
    no_builtin_flag=' -fno-builtin'
  fi
fi
##
## END FIXME

## FIXME: this should be a separate macro
##
# See if the linker supports building shared libraries.
AC_MSG_CHECKING([whether the linker ($LD) supports shared libraries])

allow_undefined_flag=
no_undefined_flag=
need_lib_prefix=unknown
need_version=unknown
# when you set need_version to no, make sure it does not cause -set_version
# flags to be left without arguments
archive_cmds=
archive_expsym_cmds=
old_archive_from_new_cmds=
old_archive_from_expsyms_cmds=
export_dynamic_flag_spec=
whole_archive_flag_spec=
thread_safe_flag_spec=
hardcode_into_libs=no
hardcode_libdir_flag_spec=
hardcode_libdir_separator=
hardcode_direct=no
hardcode_minus_L=no
hardcode_shlibpath_var=unsupported
runpath_var=
link_all_deplibs=unknown
always_export_symbols=no
export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | sed '\''s/.* //'\'' | sort | uniq > $export_symbols'
# include_expsyms should be a list of space-separated symbols to be *always*
# included in the symbol list
include_expsyms=
# exclude_expsyms can be an egrep regular expression of symbols to exclude
# it will be wrapped by ` (' and `)$', so one must not match beginning or
# end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
# as well as any symbol that contains `d'.
exclude_expsyms="_GLOBAL_OFFSET_TABLE_"
# Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
# platforms (ab)use it in PIC code, but their linkers get confused if
# the symbol is explicitly referenced.  Since portable code cannot
# rely on this symbol name, it's probably fine to never include it in
# preloaded symbol tables.
extract_expsyms_cmds=

case $host_os in
cygwin* | mingw* | pw32*)
  # FIXME: the MSVC++ port hasn't been tested in a loooong time
  # When not using gcc, we currently assume that we are using
  # Microsoft Visual C++.
  if test "$GCC" != yes; then
    with_gnu_ld=no
  fi
  ;;
openbsd*)
  with_gnu_ld=no
  ;;
esac

ld_shlibs=yes
if test "$with_gnu_ld" = yes; then
  # If archive_cmds runs LD, not CC, wlarc should be empty
  wlarc='${wl}'

  # See if GNU ld supports shared libraries.
  case $host_os in
  aix3* | aix4* | aix5*)
    # On AIX, the GNU linker is very broken
    # Note:Check GNU linker on AIX 5-IA64 when/if it becomes available.
    ld_shlibs=no
    cat <<EOF 1>&2

*** Warning: the GNU linker, at least up to release 2.9.1, is reported
*** to be unable to reliably create shared libraries on AIX.
*** Therefore, libtool is disabling shared libraries support.  If you
*** really care for shared libraries, you may want to modify your PATH
*** so that a non-GNU linker is found, and then restart.

EOF
    ;;

  amigaos*)
    archive_cmds='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
    hardcode_libdir_flag_spec='-L$libdir'
    hardcode_minus_L=yes

    # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
    # that the semantics of dynamic libraries on AmigaOS, at least up
    # to version 4, is to share data among multiple programs linked
    # with the same dynamic library.  Since this doesn't match the
    # behavior of shared libraries on other platforms, we can use
    # them.
    ld_shlibs=no
    ;;

  beos*)
    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
      allow_undefined_flag=unsupported
      # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
      # support --undefined.  This deserves some investigation.  FIXME
      archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
    else
      ld_shlibs=no
    fi
    ;;

  cygwin* | mingw* | pw32*)
    # hardcode_libdir_flag_spec is actually meaningless, as there is
    # no search path for DLLs.
    hardcode_libdir_flag_spec='-L$libdir'
    allow_undefined_flag=unsupported
    always_export_symbols=yes

    extract_expsyms_cmds='test -f $output_objdir/impgen.c || \
      sed -e "/^# \/\* impgen\.c starts here \*\//,/^# \/\* impgen.c ends here \*\// { s/^# //;s/^# *$//; p; }" -e d < $''0 > $output_objdir/impgen.c~
      test -f $output_objdir/impgen.exe || (cd $output_objdir && \
      if test "x$HOST_CC" != "x" ; then $HOST_CC -o impgen impgen.c ; \
      else $CC -o impgen impgen.c ; fi)~
      $output_objdir/impgen $dir/$soroot > $output_objdir/$soname-def'

    old_archive_from_expsyms_cmds='$DLLTOOL --as=$AS --dllname $soname --def $output_objdir/$soname-def --output-lib $output_objdir/$newlib'

    # cygwin and mingw dlls have different entry points and sets of symbols
    # to exclude.
    # FIXME: what about values for MSVC?
    dll_entry=__cygwin_dll_entry@12
    dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12~
    case $host_os in
    mingw*)
      # mingw values
      dll_entry=_DllMainCRTStartup@12
      dll_exclude_symbols=DllMain@12,DllMainCRTStartup@12,DllEntryPoint@12~
      ;;
    esac

    # mingw and cygwin differ, and it's simplest to just exclude the union
    # of the two symbol sets.
    dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12,DllMainCRTStartup@12,DllEntryPoint@12

    # recent cygwin and mingw systems supply a stub DllMain which the user
    # can override, but on older systems we have to supply one (in ltdll.c)
    if test "x$lt_cv_need_dllmain" = "xyes"; then
      ltdll_obj='$output_objdir/$soname-ltdll.'"$ac_objext "
      ltdll_cmds='test -f $output_objdir/$soname-ltdll.c || sed -e "/^# \/\* ltdll\.c starts here \*\//,/^# \/\* ltdll.c ends here \*\// { s/^# //; p; }" -e d < $''0 > $output_objdir/$soname-ltdll.c~
	test -f $output_objdir/$soname-ltdll.$ac_objext || (cd $output_objdir && $CC -c $soname-ltdll.c)~'
    else
      ltdll_obj=
      ltdll_cmds=
    fi

    # Extract the symbol export list from an `--export-all' def file,
    # then regenerate the def file from the symbol export list, so that
    # the compiled dll only exports the symbol export list.
    # Be careful not to strip the DATA tag left be newer dlltools.
    export_symbols_cmds="$ltdll_cmds"'
      $DLLTOOL --export-all --exclude-symbols '$dll_exclude_symbols' --output-def $output_objdir/$soname-def '$ltdll_obj'$libobjs $convenience~
      sed -e "1,/EXPORTS/d" -e "s/ @ [[0-9]]*//" -e "s/ *;.*$//" < $output_objdir/$soname-def > $export_symbols'

    # If the export-symbols file already is a .def file (1st line
    # is EXPORTS), use it as is.
    # If DATA tags from a recent dlltool are present, honour them!
    archive_expsym_cmds='if test "x`sed 1q $export_symbols`" = xEXPORTS; then
	cp $export_symbols $output_objdir/$soname-def;
      else
	echo EXPORTS > $output_objdir/$soname-def;
	_lt_hint=1;
	cat $export_symbols | while read symbol; do
	 set dummy \$symbol;
	 case \[$]# in
	   2) echo "   \[$]2 @ \$_lt_hint ; " >> $output_objdir/$soname-def;;
	   4) echo "   \[$]2 \[$]3 \[$]4 ; " >> $output_objdir/$soname-def; _lt_hint=`expr \$_lt_hint - 1`;;
	   *) echo "     \[$]2 @ \$_lt_hint \[$]3 ; " >> $output_objdir/$soname-def;;
	 esac;
	 _lt_hint=`expr 1 + \$_lt_hint`;
	done;
      fi~
      '"$ltdll_cmds"'
      $CC -Wl,--base-file,$output_objdir/$soname-base '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $output_objdir/$soname '$ltdll_obj'$libobjs $deplibs $compiler_flags~
      $DLLTOOL --as=$AS --dllname $soname --exclude-symbols '$dll_exclude_symbols' --def $output_objdir/$soname-def --base-file $output_objdir/$soname-base --output-exp $output_objdir/$soname-exp~
      $CC -Wl,--base-file,$output_objdir/$soname-base $output_objdir/$soname-exp '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $output_objdir/$soname '$ltdll_obj'$libobjs $deplibs $compiler_flags~
      $DLLTOOL --as=$AS --dllname $soname --exclude-symbols '$dll_exclude_symbols' --def $output_objdir/$soname-def --base-file $output_objdir/$soname-base --output-exp $output_objdir/$soname-exp --output-lib $output_objdir/$libname.dll.a~
      $CC $output_objdir/$soname-exp '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $output_objdir/$soname '$ltdll_obj'$libobjs $deplibs $compiler_flags'
    ;;

  netbsd*)
    if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
      archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
      wlarc=
    else
      archive_cmds='$CC -shared -nodefaultlibs $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
      archive_expsym_cmds='$CC -shared -nodefaultlibs $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
    fi
    ;;

  solaris* | sysv5*)
    if $LD -v 2>&1 | egrep 'BFD 2\.8' > /dev/null; then
      ld_shlibs=no
      cat <<EOF 1>&2

*** Warning: The releases 2.8.* of the GNU linker cannot reliably
*** create shared libraries on Solaris systems.  Therefore, libtool
*** is disabling shared libraries support.  We urge you to upgrade GNU
*** binutils to release 2.9.1 or newer.  Another option is to modify
*** your PATH or compiler configuration so that the native linker is
*** used, and then restart.

EOF
    elif $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
      archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
    else
      ld_shlibs=no
    fi
    ;;

  sunos4*)
    archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
    wlarc=
    hardcode_direct=yes
    hardcode_shlibpath_var=no
    ;;

  *)
    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
      archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
    else
      ld_shlibs=no
    fi
    ;;
  esac

  if test "$ld_shlibs" = yes; then
    runpath_var=LD_RUN_PATH
    hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
    export_dynamic_flag_spec='${wl}--export-dynamic'
    case $host_os in
    cygwin* | mingw* | pw32*)
      # dlltool doesn't understand --whole-archive et. al.
      whole_archive_flag_spec=
      ;;
    *)
      # ancient GNU ld didn't support --whole-archive et. al.
      if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
	whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
      else
	whole_archive_flag_spec=
      fi
      ;;
    esac
  fi
else
  # PORTME fill in a description of your system's linker (not GNU ld)
  case $host_os in
  aix3*)
    allow_undefined_flag=unsupported
    always_export_symbols=yes
    archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
    # Note: this linker hardcodes the directories in LIBPATH if there
    # are no directories specified by -L.
    hardcode_minus_L=yes
    if test "$GCC" = yes && test -z "$link_static_flag"; then
      # Neither direct hardcoding nor static linking is supported with a
      # broken collect2.
      hardcode_direct=unsupported
    fi
    ;;

  aix4* | aix5*)
    if test "$host_cpu" = ia64; then
      # On IA64, the linker does run time linking by default, so we don't
      # have to do anything special.
      aix_use_runtimelinking=no
      exp_sym_flag='-Bexport'
      no_entry_flag=""
    else
      aix_use_runtimelinking=no

      # Test if we are trying to use run time linking or normal
      # AIX style linking. If -brtl is somewhere in LDFLAGS, we
      # need to do runtime linking.
      case $host_os in aix4.[[23]]|aix4.[[23]].*|aix5*)
	for ld_flag in $LDFLAGS; do
	  case $ld_flag in
	  *-brtl*)
	    aix_use_runtimelinking=yes
	    break
	  ;;
	  esac
	done
      esac

      exp_sym_flag='-bexport'
      no_entry_flag='-bnoentry'
    fi

    # When large executables or shared objects are built, AIX ld can
    # have problems creating the table of contents.  If linking a library
    # or program results in "error TOC overflow" add -mminimal-toc to
    # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
    # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.

    hardcode_direct=yes
    archive_cmds=''
    hardcode_libdir_separator=':'
    if test "$GCC" = yes; then
      case $host_os in aix4.[[012]]|aix4.[[012]].*)
	collect2name=`${CC} -print-prog-name=collect2`
	if test -f "$collect2name" && \
	  strings "$collect2name" | grep resolve_lib_name >/dev/null
	then
	  # We have reworked collect2
	  hardcode_direct=yes
	else
	  # We have old collect2
	  hardcode_direct=unsupported
	  # It fails to find uninstalled libraries when the uninstalled
	  # path is not listed in the libpath.  Setting hardcode_minus_L
	  # to unsupported forces relinking
	  hardcode_minus_L=yes
	  hardcode_libdir_flag_spec='-L$libdir'
	  hardcode_libdir_separator=
	fi
      esac

      shared_flag='-shared'
    else
      # not using gcc
      if test "$host_cpu" = ia64; then
	shared_flag='${wl}-G'
      else
	if test "$aix_use_runtimelinking" = yes; then
	  shared_flag='${wl}-G'
	else
	  shared_flag='${wl}-bM:SRE'
	fi
      fi
    fi

    # It seems that -bexpall can do strange things, so it is better to
    # generate a list of symbols to export.
    always_export_symbols=yes
    if test "$aix_use_runtimelinking" = yes; then
      # Warning - without using the other runtime loading flags (-brtl),
      # -berok will link without error, but may produce a broken library.
      allow_undefined_flag='-berok'
      hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
      archive_expsym_cmds="\$CC"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then echo "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols $shared_flag"
    else
      if test "$host_cpu" = ia64; then
	hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
	allow_undefined_flag="-z nodefs"
	archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname ${wl}-h$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
      else
	hardcode_libdir_flag_spec='${wl}-bnolibpath ${wl}-blibpath:$libdir:/usr/lib:/lib'
	# Warning - without using the other run time loading flags,
	# -berok will link without error, but may produce a broken library.
	allow_undefined_flag='${wl}-berok'
	# This is a bit strange, but is similar to how AIX traditionally builds
	# it's shared libraries.
	archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"' ~$AR -crlo $output_objdir/$libname$release.a $output_objdir/$soname'
      fi
    fi
    ;;

  amigaos*)
    archive_cmds='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
    hardcode_libdir_flag_spec='-L$libdir'
    hardcode_minus_L=yes
    # see comment about different semantics on the GNU ld section
    ld_shlibs=no
    ;;

  cygwin* | mingw* | pw32*)
    # When not using gcc, we currently assume that we are using
    # Microsoft Visual C++.
    # hardcode_libdir_flag_spec is actually meaningless, as there is
    # no search path for DLLs.
    hardcode_libdir_flag_spec=' '
    allow_undefined_flag=unsupported
    # Tell ltmain to make .lib files, not .a files.
    libext=lib
    # FIXME: Setting linknames here is a bad hack.
    archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
    # The linker will automatically build a .lib file if we build a DLL.
    old_archive_from_new_cmds='true'
    # FIXME: Should let the user specify the lib program.
    old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs'
    fix_srcfile_path='`cygpath -w "$srcfile"`'
    ;;

  darwin* | rhapsody*)
    case "$host_os" in
    rhapsody* | darwin1.[[012]])
      allow_undefined_flag='-undefined suppress'
      ;;
    *) # Darwin 1.3 on
      allow_undefined_flag='-flat_namespace -undefined suppress'
      ;;
    esac
    # FIXME: Relying on posixy $() will cause problems for
    #        cross-compilation, but unfortunately the echo tests do not
    #        yet detect zsh echo's removal of \ escapes.  Also zsh mangles
    #	     `"' quotes if we put them in here... so don't!
    archive_cmds='$CC -r -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs && $CC $(test .$module = .yes && echo -bundle || echo -dynamiclib) $allow_undefined_flag -o $lib ${lib}-master.o $deplibs$linker_flags $(test .$module != .yes && echo -install_name $rpath/$soname $verstring)'
    # We need to add '_' to the symbols in $export_symbols first
    #archive_expsym_cmds="$archive_cmds"' && strip -s $export_symbols'
    hardcode_direct=yes
    hardcode_shlibpath_var=no
    whole_archive_flag_spec='-all_load $convenience'
    ;;

  freebsd1*)
    ld_shlibs=no
    ;;

  # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
  # support.  Future versions do this automatically, but an explicit c++rt0.o
  # does not break anything, and helps significantly (at the cost of a little
  # extra space).
  freebsd2.2*)
    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
    hardcode_libdir_flag_spec='-R$libdir'
    hardcode_direct=yes
    hardcode_shlibpath_var=no
    ;;

  # Unfortunately, older versions of FreeBSD 2 do not have this feature.
  freebsd2*)
    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
    hardcode_direct=yes
    hardcode_minus_L=yes
    hardcode_shlibpath_var=no
    ;;

  # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
  freebsd*)
    archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
    hardcode_libdir_flag_spec='-R$libdir'
    hardcode_direct=yes
    hardcode_shlibpath_var=no
    ;;

  hpux9* | hpux10* | hpux11*)
    case $host_os in
    hpux9*) archive_cmds='$rm $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
    *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;;
    esac
    hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
    hardcode_libdir_separator=:
    hardcode_direct=yes
    hardcode_minus_L=yes # Not in the search PATH, but as the default
			 # location of the library.
    export_dynamic_flag_spec='${wl}-E'
    ;;

  irix5* | irix6* | nonstopux*)
    if test "$GCC" = yes; then
      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
    else
      archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
      hardcode_libdir_flag_spec='-rpath $libdir'
    fi
    hardcode_libdir_separator=:
    link_all_deplibs=yes
    ;;

  netbsd*)
    if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
    else
      archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
    fi
    hardcode_libdir_flag_spec='-R$libdir'
    hardcode_direct=yes
    hardcode_shlibpath_var=no
    ;;

  newsos6)
    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
    hardcode_direct=yes
    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
    hardcode_libdir_separator=:
    hardcode_shlibpath_var=no
    ;;

  openbsd*)
    hardcode_direct=yes
    hardcode_shlibpath_var=no
    if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
      archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
      hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
      export_dynamic_flag_spec='${wl}-E'
    else
      case "$host_os" in
      openbsd[[01]].* | openbsd2.[[0-7]] | openbsd2.[[0-7]].*)
	archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
	hardcode_libdir_flag_spec='-R$libdir'
        ;;
      *)
        archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
        hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
        ;;
      esac
    fi
    ;;

  os2*)
    hardcode_libdir_flag_spec='-L$libdir'
    hardcode_minus_L=yes
    allow_undefined_flag=unsupported
    archive_cmds='$echo "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$echo "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~$echo DATA >> $output_objdir/$libname.def~$echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~$echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
    old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
    ;;

  osf3*)
    if test "$GCC" = yes; then
      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
      archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
    else
      allow_undefined_flag=' -expect_unresolved \*'
      archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
    fi
    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
    hardcode_libdir_separator=:
    ;;

  osf4* | osf5*)	# as osf3* with the addition of -msym flag
    if test "$GCC" = yes; then
      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
      archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
    else
      allow_undefined_flag=' -expect_unresolved \*'
      archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${output_objdir}/so_locations -o $lib'
      archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
      $LD -shared${allow_undefined_flag} -input $lib.exp $linker_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib~$rm $lib.exp'

      #Both c and cxx compiler support -rpath directly
      hardcode_libdir_flag_spec='-rpath $libdir'
    fi
    hardcode_libdir_separator=:
    ;;

  sco3.2v5*)
    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
    hardcode_shlibpath_var=no
    runpath_var=LD_RUN_PATH
    hardcode_runpath_var=yes
    export_dynamic_flag_spec='${wl}-Bexport'
    ;;

  solaris*)
    # gcc --version < 3.0 without binutils cannot create self contained
    # shared libraries reliably, requiring libgcc.a to resolve some of
    # the object symbols generated in some cases.  Libraries that use
    # assert need libgcc.a to resolve __eprintf, for example.  Linking
    # a copy of libgcc.a into every shared library to guarantee resolving
    # such symbols causes other problems:  According to Tim Van Holder
    # <tim.van.holder@pandora.be>, C++ libraries end up with a separate
    # (to the application) exception stack for one thing.
    no_undefined_flag=' -z defs'
    if test "$GCC" = yes; then
      case `$CC --version 2>/dev/null` in
      [[12]].*)
	cat <<EOF 1>&2

*** Warning: Releases of GCC earlier than version 3.0 cannot reliably
*** create self contained shared libraries on Solaris systems, without
*** introducing a dependency on libgcc.a.  Therefore, libtool is disabling
*** -no-undefined support, which will at least allow you to build shared
*** libraries.  However, you may find that when you link such libraries
*** into an application without using GCC, you have to manually add
*** \`gcc --print-libgcc-file-name\` to the link command.  We urge you to
*** upgrade to a newer version of GCC.  Another option is to rebuild your
*** current GCC to use the GNU linker from GNU binutils 2.9.1 or newer.

EOF
        no_undefined_flag=
	;;
      esac
    fi
    # $CC -shared without GNU ld will not create a library from C++
    # object files and a static libstdc++, better avoid it by now
    archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
    archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
		$LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
    hardcode_libdir_flag_spec='-R$libdir'
    hardcode_shlibpath_var=no
    case $host_os in
    solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
    *) # Supported since Solaris 2.6 (maybe 2.5.1?)
      whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
    esac
    link_all_deplibs=yes
    ;;

  sunos4*)
    if test "x$host_vendor" = xsequent; then
      # Use $CC to link under sequent, because it throws in some extra .o
      # files that make .init and .fini sections work.
      archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
    else
      archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
    fi
    hardcode_libdir_flag_spec='-L$libdir'
    hardcode_direct=yes
    hardcode_minus_L=yes
    hardcode_shlibpath_var=no
    ;;

  sysv4)
    case $host_vendor in
      sni)
        archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
        hardcode_direct=yes # is this really true???
        ;;
      siemens)
        ## LD is ld it makes a PLAMLIB
        ## CC just makes a GrossModule.
        archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
        reload_cmds='$CC -r -o $output$reload_objs'
        hardcode_direct=no
        ;;
      motorola)
        archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
        hardcode_direct=no #Motorola manual says yes, but my tests say they lie
        ;;
    esac
    runpath_var='LD_RUN_PATH'
    hardcode_shlibpath_var=no
    ;;

  sysv4.3*)
    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
    hardcode_shlibpath_var=no
    export_dynamic_flag_spec='-Bexport'
    ;;

  sysv5*)
    no_undefined_flag=' -z text'
    # $CC -shared without GNU ld will not create a library from C++
    # object files and a static libstdc++, better avoid it by now
    archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
    archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
		$LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
    hardcode_libdir_flag_spec=
    hardcode_shlibpath_var=no
    runpath_var='LD_RUN_PATH'
    ;;

  uts4*)
    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
    hardcode_libdir_flag_spec='-L$libdir'
    hardcode_shlibpath_var=no
    ;;

  dgux*)
    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
    hardcode_libdir_flag_spec='-L$libdir'
    hardcode_shlibpath_var=no
    ;;

  sysv4*MP*)
    if test -d /usr/nec; then
      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
      hardcode_shlibpath_var=no
      runpath_var=LD_RUN_PATH
      hardcode_runpath_var=yes
      ld_shlibs=yes
    fi
    ;;

  sysv4.2uw2*)
    archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
    hardcode_direct=yes
    hardcode_minus_L=no
    hardcode_shlibpath_var=no
    hardcode_runpath_var=yes
    runpath_var=LD_RUN_PATH
    ;;

  sysv5uw7* | unixware7*)
    no_undefined_flag='${wl}-z ${wl}text'
    if test "$GCC" = yes; then
      archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
    else
      archive_cmds='$CC -G ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
    fi
    runpath_var='LD_RUN_PATH'
    hardcode_shlibpath_var=no
    ;;

  *)
    ld_shlibs=no
    ;;
  esac
fi
AC_MSG_RESULT([$ld_shlibs])
test "$ld_shlibs" = no && can_build_shared=no
##
## END FIXME

## FIXME: this should be a separate macro
##
# Check hardcoding attributes.
AC_MSG_CHECKING([how to hardcode library paths into programs])
hardcode_action=
if test -n "$hardcode_libdir_flag_spec" || \
   test -n "$runpath_var"; then

  # We can hardcode non-existant directories.
  if test "$hardcode_direct" != no &&
     # If the only mechanism to avoid hardcoding is shlibpath_var, we
     # have to relink, otherwise we might link with an installed library
     # when we should be linking with a yet-to-be-installed one
     ## test "$hardcode_shlibpath_var" != no &&
     test "$hardcode_minus_L" != no; then
    # Linking always hardcodes the temporary library directory.
    hardcode_action=relink
  else
    # We can link without hardcoding, and we can hardcode nonexisting dirs.
    hardcode_action=immediate
  fi
else
  # We cannot hardcode anything, or else we can only hardcode existing
  # directories.
  hardcode_action=unsupported
fi
AC_MSG_RESULT([$hardcode_action])
##
## END FIXME

## FIXME: this should be a separate macro
##
striplib=
old_striplib=
AC_MSG_CHECKING([whether stripping libraries is possible])
if test -n "$STRIP" && $STRIP -V 2>&1 | grep "GNU strip" >/dev/null; then
  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
  AC_MSG_RESULT([yes])
else
  AC_MSG_RESULT([no])
fi
##
## END FIXME

reload_cmds='$LD$reload_flag -o $output$reload_objs'
test -z "$deplibs_check_method" && deplibs_check_method=unknown

## FIXME: this should be a separate macro
##
# PORTME Fill in your ld.so characteristics
AC_MSG_CHECKING([dynamic linker characteristics])
library_names_spec=
libname_spec='lib$name'
soname_spec=
postinstall_cmds=
postuninstall_cmds=
finish_cmds=
finish_eval=
shlibpath_var=
shlibpath_overrides_runpath=unknown
version_type=none
dynamic_linker="$host_os ld.so"
sys_lib_dlsearch_path_spec="/lib /usr/lib"
sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"

case $host_os in
aix3*)
  version_type=linux
  library_names_spec='${libname}${release}.so$versuffix $libname.a'
  shlibpath_var=LIBPATH

  # AIX has no versioning support, so we append a major version to the name.
  soname_spec='${libname}${release}.so$major'
  ;;

aix4* | aix5*)
  version_type=linux
  need_lib_prefix=no
  need_version=no
  hardcode_into_libs=yes
  if test "$host_cpu" = ia64; then
    # AIX 5 supports IA64
    library_names_spec='${libname}${release}.so$major ${libname}${release}.so$versuffix $libname.so'
    shlibpath_var=LD_LIBRARY_PATH
  else
    # With GCC up to 2.95.x, collect2 would create an import file
    # for dependence libraries.  The import file would start with
    # the line `#! .'.  This would cause the generated library to
    # depend on `.', always an invalid library.  This was fixed in
    # development snapshots of GCC prior to 3.0.
    case $host_os in
      aix4 | aix4.[[01]] | aix4.[[01]].*)
	if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
	     echo ' yes '
	     echo '#endif'; } | ${CC} -E - | grep yes > /dev/null; then
	  :
	else
	  can_build_shared=no
	fi
	;;
    esac
    # AIX (on Power*) has no versioning support, so currently we can
    # not hardcode correct soname into executable. Probably we can
    # add versioning support to collect2, so additional links can
    # be useful in future.
    if test "$aix_use_runtimelinking" = yes; then
      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
      # instead of lib<name>.a to let people know that these are not
      # typical AIX shared libraries.
      library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
    else
      # We preserve .a as extension for shared libraries through AIX4.2
      # and later when we are not doing run time linking.
      library_names_spec='${libname}${release}.a $libname.a'
      soname_spec='${libname}${release}.so$major'
    fi
    shlibpath_var=LIBPATH
  fi
  hardcode_into_libs=yes
  ;;

amigaos*)
  library_names_spec='$libname.ixlibrary $libname.a'
  # Create ${libname}_ixlibrary.a entries in /sys/libs.
  finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$echo "X$lib" | $Xsed -e '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; test $rm /sys/libs/${libname}_ixlibrary.a; $show "(cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a)"; (cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a) || exit 1; done'
  ;;

beos*)
  library_names_spec='${libname}.so'
  dynamic_linker="$host_os ld.so"
  shlibpath_var=LIBRARY_PATH
  ;;

bsdi4*)
  version_type=linux
  need_version=no
  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
  soname_spec='${libname}${release}.so$major'
  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
  export_dynamic_flag_spec=-rdynamic
  # the default ld.so.conf also contains /usr/contrib/lib and
  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
  # libtool to hard-code these into programs
  ;;

cygwin* | mingw* | pw32*)
  version_type=windows
  need_version=no
  need_lib_prefix=no
  case $GCC,$host_os in
  yes,cygwin*)
    library_names_spec='$libname.dll.a'
    soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | sed -e 's/[[.]]/-/g'`${versuffix}.dll'
    postinstall_cmds='dlpath=`bash 2>&1 -c '\''. $dir/${file}i;echo \$dlname'\''`~
      dldir=$destdir/`dirname \$dlpath`~
      test -d \$dldir || mkdir -p \$dldir~
      $install_prog .libs/$dlname \$dldir/$dlname'
    postuninstall_cmds='dldll=`bash 2>&1 -c '\''. $file; echo \$dlname'\''`~
      dlpath=$dir/\$dldll~
       $rm \$dlpath'
    ;;
  yes,mingw*)
    library_names_spec='${libname}`echo ${release} | sed -e 's/[[.]]/-/g'`${versuffix}.dll'
    sys_lib_search_path_spec=`$CC -print-search-dirs | grep "^libraries:" | sed -e "s/^libraries://" -e "s/;/ /g" -e "s,=/,/,g"`
    ;;
  yes,pw32*)
    library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | sed -e 's/[.]/-/g'`${versuffix}.dll'
    ;;
  *)
    library_names_spec='${libname}`echo ${release} | sed -e 's/[[.]]/-/g'`${versuffix}.dll $libname.lib'
    ;;
  esac
  dynamic_linker='Win32 ld.exe'
  # FIXME: first we should search . and the directory the executable is in
  shlibpath_var=PATH
  ;;

darwin* | rhapsody*)
  dynamic_linker="$host_os dyld"
  version_type=darwin
  need_lib_prefix=no
  need_version=no
  # FIXME: Relying on posixy $() will cause problems for
  #        cross-compilation, but unfortunately the echo tests do not
  #        yet detect zsh echo's removal of \ escapes.
  library_names_spec='${libname}${release}${versuffix}.$(test .$module = .yes && echo so || echo dylib) ${libname}${release}${major}.$(test .$module = .yes && echo so || echo dylib) ${libname}.$(test .$module = .yes && echo so || echo dylib)'
  soname_spec='${libname}${release}${major}.$(test .$module = .yes && echo so || echo dylib)'
  shlibpath_overrides_runpath=yes
  shlibpath_var=DYLD_LIBRARY_PATH
  ;;

freebsd1*)
  dynamic_linker=no
  ;;

freebsd*-gnu*)
  version_type=linux
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
  soname_spec='${libname}${release}.so$major'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  hardcode_into_libs=yes
  dynamic_linker='GNU/FreeBSD ld.so'
  ;;

freebsd*)
  objformat=`test -x /usr/bin/objformat && /usr/bin/objformat || echo aout`
  version_type=freebsd-$objformat
  case $version_type in
    freebsd-elf*)
      library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so $libname.so'
      need_version=no
      need_lib_prefix=no
      ;;
    freebsd-*)
      library_names_spec='${libname}${release}.so$versuffix $libname.so$versuffix'
      need_version=yes
      ;;
  esac
  shlibpath_var=LD_LIBRARY_PATH
  case $host_os in
  freebsd2*)
    shlibpath_overrides_runpath=yes
    ;;
  *)
    shlibpath_overrides_runpath=no
    hardcode_into_libs=yes
    ;;
  esac
  ;;

gnu*)
  version_type=linux
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so${major} ${libname}.so'
  soname_spec='${libname}${release}.so$major'
  shlibpath_var=LD_LIBRARY_PATH
  hardcode_into_libs=yes
  ;;

hpux9* | hpux10* | hpux11*)
  # Give a soname corresponding to the major version so that dld.sl refuses to
  # link against other versions.
  dynamic_linker="$host_os dld.sl"
  version_type=sunos
  need_lib_prefix=no
  need_version=no
  shlibpath_var=SHLIB_PATH
  shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
  library_names_spec='${libname}${release}.sl$versuffix ${libname}${release}.sl$major $libname.sl'
  soname_spec='${libname}${release}.sl$major'
  # HP-UX runs *really* slowly unless shared libraries are mode 555.
  postinstall_cmds='chmod 555 $lib'
  ;;

irix5* | irix6* | nonstopux*)
  case $host_os in
    nonstopux*) version_type=nonstopux ;;
    *)          version_type=irix ;;
  esac
  need_lib_prefix=no
  need_version=no
  soname_spec='${libname}${release}.so$major'
  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major ${libname}${release}.so $libname.so'
  case $host_os in
  irix5* | nonstopux*)
    libsuff= shlibsuff=
    ;;
  *)
    case $LD in # libtool.m4 will add one of these switches to LD
    *-32|*"-32 ") libsuff= shlibsuff= libmagic=32-bit;;
    *-n32|*"-n32 ") libsuff=32 shlibsuff=N32 libmagic=N32;;
    *-64|*"-64 ") libsuff=64 shlibsuff=64 libmagic=64-bit;;
    *) libsuff= shlibsuff= libmagic=never-match;;
    esac
    ;;
  esac
  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
  shlibpath_overrides_runpath=no
  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
  ;;

# No shared lib support for Linux oldld, aout, or coff.
linux-gnuoldld* | linux-gnuaout* | linux-gnucoff*)
  dynamic_linker=no
  ;;

# This must be Linux ELF.
linux-gnu*)
  version_type=linux
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
  soname_spec='${libname}${release}.so$major'
  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  # This implies no fast_install, which is unacceptable.
  # Some rework will be needed to allow for fast_install
  # before this can be enabled.
  hardcode_into_libs=yes

  # We used to test for /lib/ld.so.1 and disable shared libraries on
  # powerpc, because MkLinux only supported shared libraries with the
  # GNU dynamic linker.  Since this was broken with cross compilers,
  # most powerpc-linux boxes support dynamic linking these days and
  # people can always --disable-shared, the test was removed, and we
  # assume the GNU/Linux dynamic linker is in use.
  dynamic_linker='GNU/Linux ld.so'
  ;;

netbsd*)
  version_type=sunos
  need_lib_prefix=no
  need_version=no
  if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
    library_names_spec='${libname}${release}.so$versuffix ${libname}.so$versuffix'
    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
    dynamic_linker='NetBSD (a.out) ld.so'
  else
    library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major ${libname}${release}.so ${libname}.so'
    soname_spec='${libname}${release}.so$major'
    dynamic_linker='NetBSD ld.elf_so'
  fi
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  hardcode_into_libs=yes
  ;;

newsos6)
  version_type=linux
  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  ;;

openbsd*)
  version_type=sunos
  need_lib_prefix=no
  need_version=no
  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
    case "$host_os" in
    openbsd2.[[89]] | openbsd2.[[89]].*)
      shlibpath_overrides_runpath=no
      ;;
    *)
      shlibpath_overrides_runpath=yes
      ;;
    esac
  else
    shlibpath_overrides_runpath=yes
  fi
  library_names_spec='${libname}${release}.so$versuffix ${libname}.so$versuffix'
  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

os2*)
  libname_spec='$name'
  need_lib_prefix=no
  library_names_spec='$libname.dll $libname.a'
  dynamic_linker='OS/2 ld.exe'
  shlibpath_var=LIBPATH
  ;;

osf3* | osf4* | osf5*)
  version_type=osf
  need_version=no
  need_lib_prefix=no
  soname_spec='${libname}${release}.so$major'
  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
  shlibpath_var=LD_LIBRARY_PATH
  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
  hardcode_into_libs=yes
  ;;

sco3.2v5*)
  version_type=osf
  soname_spec='${libname}${release}.so$major'
  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

solaris*)
  version_type=linux
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
  soname_spec='${libname}${release}.so$major'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  hardcode_into_libs=yes
  # ldd complains unless libraries are executable
  postinstall_cmds='chmod +x $lib'
  ;;

sunos4*)
  version_type=sunos
  library_names_spec='${libname}${release}.so$versuffix ${libname}.so$versuffix'
  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  if test "$with_gnu_ld" = yes; then
    need_lib_prefix=no
  fi
  need_version=yes
  ;;

sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
  version_type=linux
  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
  soname_spec='${libname}${release}.so$major'
  shlibpath_var=LD_LIBRARY_PATH
  case $host_vendor in
    sni)
      shlibpath_overrides_runpath=no
      need_lib_prefix=no
      export_dynamic_flag_spec='${wl}-Blargedynsym'
      runpath_var=LD_RUN_PATH
      ;;
    siemens)
      need_lib_prefix=no
      ;;
    motorola)
      need_lib_prefix=no
      need_version=no
      shlibpath_overrides_runpath=no
      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
      ;;
  esac
  ;;

uts4*)
  version_type=linux
  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
  soname_spec='${libname}${release}.so$major'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

dgux*)
  version_type=linux
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
  soname_spec='${libname}${release}.so$major'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

sysv4*MP*)
  if test -d /usr/nec ;then
    version_type=linux
    library_names_spec='$libname.so.$versuffix $libname.so.$major $libname.so'
    soname_spec='$libname.so.$major'
    shlibpath_var=LD_LIBRARY_PATH
  fi
  ;;

*)
  dynamic_linker=no
  ;;
esac
AC_MSG_RESULT([$dynamic_linker])
test "$dynamic_linker" = no && can_build_shared=no
##
## END FIXME

## FIXME: this should be a separate macro
##
# Report the final consequences.
AC_MSG_CHECKING([if libtool supports shared libraries])
AC_MSG_RESULT([$can_build_shared])
##
## END FIXME

## FIXME: this should be a separate macro
##
AC_MSG_CHECKING([whether to build shared libraries])
test "$can_build_shared" = "no" && enable_shared=no

# On AIX, shared libraries and static libraries use the same namespace, and
# are all built from PIC.
case "$host_os" in
aix3*)
  test "$enable_shared" = yes && enable_static=no
  if test -n "$RANLIB"; then
    archive_cmds="$archive_cmds~\$RANLIB \$lib"
    postinstall_cmds='$RANLIB $lib'
  fi
  ;;

aix4*)
  if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
    test "$enable_shared" = yes && enable_static=no
  fi
  ;;
esac
AC_MSG_RESULT([$enable_shared])
##
## END FIXME

## FIXME: this should be a separate macro
##
AC_MSG_CHECKING([whether to build static libraries])
# Make sure either enable_shared or enable_static is yes.
test "$enable_shared" = yes || enable_static=yes
AC_MSG_RESULT([$enable_static])
##
## END FIXME

if test "$hardcode_action" = relink; then
  # Fast installation is not supported
  enable_fast_install=no
elif test "$shlibpath_overrides_runpath" = yes ||
     test "$enable_shared" = no; then
  # Fast installation is not necessary
  enable_fast_install=needless
fi

variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
if test "$GCC" = yes; then
  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
fi

AC_LIBTOOL_DLOPEN_SELF

## FIXME: this should be a separate macro
##
if test "$enable_shared" = yes && test "$GCC" = yes; then
  case $archive_cmds in
  *'~'*)
    # FIXME: we may have to deal with multi-command sequences.
    ;;
  '$CC '*)
    # Test whether the compiler implicitly links with -lc since on some
    # systems, -lgcc has to come before -lc. If gcc already passes -lc
    # to ld, don't add -lc before -lgcc.
    AC_MSG_CHECKING([whether -lc should be explicitly linked in])
    AC_CACHE_VAL([lt_cv_archive_cmds_need_lc],
    [$rm conftest*
    echo 'static int dummy;' > conftest.$ac_ext

    if AC_TRY_EVAL(ac_compile); then
      soname=conftest
      lib=conftest
      libobjs=conftest.$ac_objext
      deplibs=
      wl=$lt_cv_prog_cc_wl
      compiler_flags=-v
      linker_flags=-v
      verstring=
      output_objdir=.
      libname=conftest
      save_allow_undefined_flag=$allow_undefined_flag
      allow_undefined_flag=
      if AC_TRY_EVAL(archive_cmds 2\>\&1 \| grep \" -lc \" \>/dev/null 2\>\&1)
      then
	lt_cv_archive_cmds_need_lc=no
      else
	lt_cv_archive_cmds_need_lc=yes
      fi
      allow_undefined_flag=$save_allow_undefined_flag
    else
      cat conftest.err 1>&5
    fi])
    AC_MSG_RESULT([$lt_cv_archive_cmds_need_lc])
    ;;
  esac
fi
need_lc=${lt_cv_archive_cmds_need_lc-yes}
##
## END FIXME

## FIXME: this should be a separate macro
##
# The second clause should only fire when bootstrapping the
# libtool distribution, otherwise you forgot to ship ltmain.sh
# with your package, and you will get complaints that there are
# no rules to generate ltmain.sh.
if test -f "$ltmain"; then
  :
else
  # If there is no Makefile yet, we rely on a make rule to execute
  # `config.status --recheck' to rerun these tests and create the
  # libtool script then.
  test -f Makefile && make "$ltmain"
fi

if test -f "$ltmain"; then
  trap "$rm \"${ofile}T\"; exit 1" 1 2 15
  $rm -f "${ofile}T"

  echo creating $ofile

  # Now quote all the things that may contain metacharacters while being
  # careful not to overquote the AC_SUBSTed values.  We take copies of the
  # variables and quote the copies for generation of the libtool script.
  for var in echo old_CC old_CFLAGS SED \
    AR AR_FLAGS CC LD LN_S NM SHELL \
    reload_flag reload_cmds wl \
    pic_flag link_static_flag no_builtin_flag export_dynamic_flag_spec \
    thread_safe_flag_spec whole_archive_flag_spec libname_spec \
    library_names_spec soname_spec \
    RANLIB old_archive_cmds old_archive_from_new_cmds old_postinstall_cmds \
    old_postuninstall_cmds archive_cmds archive_expsym_cmds postinstall_cmds \
    postuninstall_cmds extract_expsyms_cmds old_archive_from_expsyms_cmds \
    old_striplib striplib file_magic_cmd export_symbols_cmds \
    deplibs_check_method allow_undefined_flag no_undefined_flag \
    finish_cmds finish_eval global_symbol_pipe global_symbol_to_cdecl \
    global_symbol_to_c_name_address \
    hardcode_libdir_flag_spec hardcode_libdir_separator  \
    sys_lib_search_path_spec sys_lib_dlsearch_path_spec \
    compiler_c_o compiler_o_lo need_locks exclude_expsyms include_expsyms; do

    case $var in
    reload_cmds | old_archive_cmds | old_archive_from_new_cmds | \
    old_postinstall_cmds | old_postuninstall_cmds | \
    export_symbols_cmds | archive_cmds | archive_expsym_cmds | \
    extract_expsyms_cmds | old_archive_from_expsyms_cmds | \
    postinstall_cmds | postuninstall_cmds | \
    finish_cmds | sys_lib_search_path_spec | sys_lib_dlsearch_path_spec)
      # Double-quote double-evaled strings.
      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$double_quote_subst\" -e \"\$sed_quote_subst\" -e \"\$delay_variable_subst\"\`\\\""
      ;;
    *)
      eval "lt_$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$sed_quote_subst\"\`\\\""
      ;;
    esac
  done

  cat <<__EOF__ > "${ofile}T"
#! $SHELL

# `$echo "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
# Generated automatically by $PROGRAM (GNU $PACKAGE $VERSION$TIMESTAMP)
# NOTE: Changes made to this file will be lost: look at ltmain.sh.
#
# Copyright (C) 1996-2000 Free Software Foundation, Inc.
# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.

# A sed that does not truncate output.
SED=$lt_SED

# Sed that helps us avoid accidentally triggering echo(1) options like -n.
Xsed="${SED} -e s/^X//"

# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
if test "X\${CDPATH+set}" = Xset; then CDPATH=:; export CDPATH; fi

# ### BEGIN LIBTOOL CONFIG

# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:

# Shell to use when invoking shell scripts.
SHELL=$lt_SHELL

# Whether or not to build shared libraries.
build_libtool_libs=$enable_shared

# Whether or not to build static libraries.
build_old_libs=$enable_static

# Whether or not to add -lc for building shared libraries.
build_libtool_need_lc=$need_lc

# Whether or not to optimize for fast installation.
fast_install=$enable_fast_install

# The host system.
host_alias=$host_alias
host=$host

# An echo program that does not interpret backslashes.
echo=$lt_echo

# The archiver.
AR=$lt_AR
AR_FLAGS=$lt_AR_FLAGS

# The default C compiler.
CC=$lt_CC

# Is the compiler the GNU C compiler?
with_gcc=$GCC

# The linker used to build libraries.
LD=$lt_LD

# Whether we need hard or soft links.
LN_S=$lt_LN_S

# A BSD-compatible nm program.
NM=$lt_NM

# A symbol stripping program
STRIP=$STRIP

# Used to examine libraries when file_magic_cmd begins "file"
MAGIC_CMD=$MAGIC_CMD

# Used on cygwin: DLL creation program.
DLLTOOL="$DLLTOOL"

# Used on cygwin: object dumper.
OBJDUMP="$OBJDUMP"

# Used on cygwin: assembler.
AS="$AS"

# The name of the directory that contains temporary libtool files.
objdir=$objdir

# How to create reloadable object files.
reload_flag=$lt_reload_flag
reload_cmds=$lt_reload_cmds

# How to pass a linker flag through the compiler.
wl=$lt_wl

# Object file suffix (normally "o").
objext="$ac_objext"

# Old archive suffix (normally "a").
libext="$libext"

# Executable file suffix (normally "").
exeext="$exeext"

# Additional compiler flags for building library objects.
pic_flag=$lt_pic_flag
pic_mode=$pic_mode

# Does compiler simultaneously support -c and -o options?
compiler_c_o=$lt_compiler_c_o

# Can we write directly to a .lo ?
compiler_o_lo=$lt_compiler_o_lo

# Must we lock files when doing compilation ?
need_locks=$lt_need_locks

# Do we need the lib prefix for modules?
need_lib_prefix=$need_lib_prefix

# Do we need a version for libraries?
need_version=$need_version

# Whether dlopen is supported.
dlopen_support=$enable_dlopen

# Whether dlopen of programs is supported.
dlopen_self=$enable_dlopen_self

# Whether dlopen of statically linked programs is supported.
dlopen_self_static=$enable_dlopen_self_static

# Compiler flag to prevent dynamic linking.
link_static_flag=$lt_link_static_flag

# Compiler flag to turn off builtin functions.
no_builtin_flag=$lt_no_builtin_flag

# Compiler flag to allow reflexive dlopens.
export_dynamic_flag_spec=$lt_export_dynamic_flag_spec

# Compiler flag to generate shared objects directly from archives.
whole_archive_flag_spec=$lt_whole_archive_flag_spec

# Compiler flag to generate thread-safe objects.
thread_safe_flag_spec=$lt_thread_safe_flag_spec

# Library versioning type.
version_type=$version_type

# Format of library name prefix.
libname_spec=$lt_libname_spec

# List of archive names.  First name is the real one, the rest are links.
# The last name is the one that the linker finds with -lNAME.
library_names_spec=$lt_library_names_spec

# The coded name of the library, if different from the real name.
soname_spec=$lt_soname_spec

# Commands used to build and install an old-style archive.
RANLIB=$lt_RANLIB
old_archive_cmds=$lt_old_archive_cmds
old_postinstall_cmds=$lt_old_postinstall_cmds
old_postuninstall_cmds=$lt_old_postuninstall_cmds

# Create an old-style archive from a shared archive.
old_archive_from_new_cmds=$lt_old_archive_from_new_cmds

# Create a temporary old-style archive to link instead of a shared archive.
old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds

# Commands used to build and install a shared archive.
archive_cmds=$lt_archive_cmds
archive_expsym_cmds=$lt_archive_expsym_cmds
postinstall_cmds=$lt_postinstall_cmds
postuninstall_cmds=$lt_postuninstall_cmds

# Commands to strip libraries.
old_striplib=$lt_old_striplib
striplib=$lt_striplib

# Method to check whether dependent libraries are shared objects.
deplibs_check_method=$lt_deplibs_check_method

# Command to use when deplibs_check_method == file_magic.
file_magic_cmd=$lt_file_magic_cmd

# Flag that allows shared libraries with undefined symbols to be built.
allow_undefined_flag=$lt_allow_undefined_flag

# Flag that forces no undefined symbols.
no_undefined_flag=$lt_no_undefined_flag

# Commands used to finish a libtool library installation in a directory.
finish_cmds=$lt_finish_cmds

# Same as above, but a single script fragment to be evaled but not shown.
finish_eval=$lt_finish_eval

# Take the output of nm and produce a listing of raw symbols and C names.
global_symbol_pipe=$lt_global_symbol_pipe

# Transform the output of nm in a proper C declaration
global_symbol_to_cdecl=$lt_global_symbol_to_cdecl

# Transform the output of nm in a C name address pair
global_symbol_to_c_name_address=$lt_global_symbol_to_c_name_address

# This is the shared library runtime path variable.
runpath_var=$runpath_var

# This is the shared library path variable.
shlibpath_var=$shlibpath_var

# Is shlibpath searched before the hard-coded library search path?
shlibpath_overrides_runpath=$shlibpath_overrides_runpath

# How to hardcode a shared library path into an executable.
hardcode_action=$hardcode_action

# Whether we should hardcode library paths into libraries.
hardcode_into_libs=$hardcode_into_libs

# Flag to hardcode \$libdir into a binary during linking.
# This must work even if \$libdir does not exist.
hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec

# Whether we need a single -rpath flag with a separated argument.
hardcode_libdir_separator=$lt_hardcode_libdir_separator

# Set to yes if using DIR/libNAME.so during linking hardcodes DIR into the
# resulting binary.
hardcode_direct=$hardcode_direct

# Set to yes if using the -LDIR flag during linking hardcodes DIR into the
# resulting binary.
hardcode_minus_L=$hardcode_minus_L

# Set to yes if using SHLIBPATH_VAR=DIR during linking hardcodes DIR into
# the resulting binary.
hardcode_shlibpath_var=$hardcode_shlibpath_var

# Variables whose values should be saved in libtool wrapper scripts and
# restored at relink time.
variables_saved_for_relink="$variables_saved_for_relink"

# Whether libtool must link a program against all its dependency libraries.
link_all_deplibs=$link_all_deplibs

# Compile-time system search path for libraries
sys_lib_search_path_spec=$lt_sys_lib_search_path_spec

# Run-time system search path for libraries
sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec

# Fix the shell variable \$srcfile for the compiler.
fix_srcfile_path="$fix_srcfile_path"

# Set to yes if exported symbols are required.
always_export_symbols=$always_export_symbols

# The commands to list exported symbols.
export_symbols_cmds=$lt_export_symbols_cmds

# The commands to extract the exported symbol list from a shared archive.
extract_expsyms_cmds=$lt_extract_expsyms_cmds

# Symbols that should not be listed in the preloaded symbols.
exclude_expsyms=$lt_exclude_expsyms

# Symbols that must always be exported.
include_expsyms=$lt_include_expsyms

# ### END LIBTOOL CONFIG

__EOF__

  case $host_os in
  aix3*)
    cat <<\EOF >> "${ofile}T"

# AIX sometimes has problems with the GCC collect2 program.  For some
# reason, if we set the COLLECT_NAMES environment variable, the problems
# vanish in a puff of smoke.
if test "X${COLLECT_NAMES+set}" != Xset; then
  COLLECT_NAMES=
  export COLLECT_NAMES
fi
EOF
    ;;
  esac

  case $host_os in
  cygwin* | mingw* | pw32* | os2*)
    cat <<'EOF' >> "${ofile}T"
      # This is a source program that is used to create dlls on Windows
      # Don't remove nor modify the starting and closing comments
# /* ltdll.c starts here */
# #define WIN32_LEAN_AND_MEAN
# #include <windows.h>
# #undef WIN32_LEAN_AND_MEAN
# #include <stdio.h>
#
# #ifndef __CYGWIN__
# #  ifdef __CYGWIN32__
# #    define __CYGWIN__ __CYGWIN32__
# #  endif
# #endif
#
# #ifdef __cplusplus
# extern "C" {
# #endif
# BOOL APIENTRY DllMain (HINSTANCE hInst, DWORD reason, LPVOID reserved);
# #ifdef __cplusplus
# }
# #endif
#
# #ifdef __CYGWIN__
# #include <cygwin/cygwin_dll.h>
# DECLARE_CYGWIN_DLL( DllMain );
# #endif
# HINSTANCE __hDllInstance_base;
#
# BOOL APIENTRY
# DllMain (HINSTANCE hInst, DWORD reason, LPVOID reserved)
# {
#   __hDllInstance_base = hInst;
#   return TRUE;
# }
# /* ltdll.c ends here */
	# This is a source program that is used to create import libraries
	# on Windows for dlls which lack them. Don't remove nor modify the
	# starting and closing comments
# /* impgen.c starts here */
# /*   Copyright (C) 1999-2000 Free Software Foundation, Inc.
#
#  This file is part of GNU libtool.
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#  */
#
# #include <stdio.h>		/* for printf() */
# #include <unistd.h>		/* for open(), lseek(), read() */
# #include <fcntl.h>		/* for O_RDONLY, O_BINARY */
# #include <string.h>		/* for strdup() */
#
# /* O_BINARY isn't required (or even defined sometimes) under Unix */
# #ifndef O_BINARY
# #define O_BINARY 0
# #endif
#
# static unsigned int
# pe_get16 (fd, offset)
#      int fd;
#      int offset;
# {
#   unsigned char b[2];
#   lseek (fd, offset, SEEK_SET);
#   read (fd, b, 2);
#   return b[0] + (b[1]<<8);
# }
#
# static unsigned int
# pe_get32 (fd, offset)
#     int fd;
#     int offset;
# {
#   unsigned char b[4];
#   lseek (fd, offset, SEEK_SET);
#   read (fd, b, 4);
#   return b[0] + (b[1]<<8) + (b[2]<<16) + (b[3]<<24);
# }
#
# static unsigned int
# pe_as32 (ptr)
#      void *ptr;
# {
#   unsigned char *b = ptr;
#   return b[0] + (b[1]<<8) + (b[2]<<16) + (b[3]<<24);
# }
#
# int
# main (argc, argv)
#     int argc;
#     char *argv[];
# {
#     int dll;
#     unsigned long pe_header_offset, opthdr_ofs, num_entries, i;
#     unsigned long export_rva, export_size, nsections, secptr, expptr;
#     unsigned long name_rvas, nexp;
#     unsigned char *expdata, *erva;
#     char *filename, *dll_name;
#
#     filename = argv[1];
#
#     dll = open(filename, O_RDONLY|O_BINARY);
#     if (dll < 1)
# 	return 1;
#
#     dll_name = filename;
#
#     for (i=0; filename[i]; i++)
# 	if (filename[i] == '/' || filename[i] == '\\'  || filename[i] == ':')
# 	    dll_name = filename + i +1;
#
#     pe_header_offset = pe_get32 (dll, 0x3c);
#     opthdr_ofs = pe_header_offset + 4 + 20;
#     num_entries = pe_get32 (dll, opthdr_ofs + 92);
#
#     if (num_entries < 1) /* no exports */
# 	return 1;
#
#     export_rva = pe_get32 (dll, opthdr_ofs + 96);
#     export_size = pe_get32 (dll, opthdr_ofs + 100);
#     nsections = pe_get16 (dll, pe_header_offset + 4 +2);
#     secptr = (pe_header_offset + 4 + 20 +
# 	      pe_get16 (dll, pe_header_offset + 4 + 16));
#
#     expptr = 0;
#     for (i = 0; i < nsections; i++)
#     {
# 	char sname[8];
# 	unsigned long secptr1 = secptr + 40 * i;
# 	unsigned long vaddr = pe_get32 (dll, secptr1 + 12);
# 	unsigned long vsize = pe_get32 (dll, secptr1 + 16);
# 	unsigned long fptr = pe_get32 (dll, secptr1 + 20);
# 	lseek(dll, secptr1, SEEK_SET);
# 	read(dll, sname, 8);
# 	if (vaddr <= export_rva && vaddr+vsize > export_rva)
# 	{
# 	    expptr = fptr + (export_rva - vaddr);
# 	    if (export_rva + export_size > vaddr + vsize)
# 		export_size = vsize - (export_rva - vaddr);
# 	    break;
# 	}
#     }
#
#     expdata = (unsigned char*)malloc(export_size);
#     lseek (dll, expptr, SEEK_SET);
#     read (dll, expdata, export_size);
#     erva = expdata - export_rva;
#
#     nexp = pe_as32 (expdata+24);
#     name_rvas = pe_as32 (expdata+32);
#
#     printf ("EXPORTS\n");
#     for (i = 0; i<nexp; i++)
#     {
# 	unsigned long name_rva = pe_as32 (erva+name_rvas+i*4);
# 	printf ("\t%s @ %ld ;\n", erva+name_rva, 1+ i);
#     }
#
#     return 0;
# }
# /* impgen.c ends here */

EOF
    ;;
  esac

  # We use sed instead of cat because bash on DJGPP gets confused if
  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
  # text mode, it properly converts lines to CR/LF.  This bash problem
  # is reportedly fixed, but why not run on old versions too?
  sed '$q' "$ltmain" >> "${ofile}T" || (rm -f "${ofile}T"; exit 1)

  mv -f "${ofile}T" "$ofile" || \
    (rm -f "$ofile" && cp "${ofile}T" "$ofile" && rm -f "${ofile}T")
  chmod +x "$ofile"
fi
##
## END FIXME

])# _LT_AC_LTCONFIG_HACK

# AC_LIBTOOL_DLOPEN - enable checks for dlopen support
AC_DEFUN([AC_LIBTOOL_DLOPEN], [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])

# AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's
AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])

# AC_ENABLE_SHARED - implement the --enable-shared flag
# Usage: AC_ENABLE_SHARED[(DEFAULT)]
#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
#   `yes'.
AC_DEFUN([AC_ENABLE_SHARED],
[define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
AC_ARG_ENABLE(shared,
changequote(<<, >>)dnl
<<  --enable-shared[=PKGS]  build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],
changequote([, ])dnl
[p=${PACKAGE-default}
case $enableval in
yes) enable_shared=yes ;;
no) enable_shared=no ;;
*)
  enable_shared=no
  # Look at the argument we got.  We use all the common list separators.
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
  for pkg in $enableval; do
    if test "X$pkg" = "X$p"; then
      enable_shared=yes
    fi
  done
  IFS="$ac_save_ifs"
  ;;
esac],
enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
])

# AC_DISABLE_SHARED - set the default shared flag to --disable-shared
AC_DEFUN([AC_DISABLE_SHARED],
[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
AC_ENABLE_SHARED(no)])

# AC_ENABLE_STATIC - implement the --enable-static flag
# Usage: AC_ENABLE_STATIC[(DEFAULT)]
#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
#   `yes'.
AC_DEFUN([AC_ENABLE_STATIC],
[define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
AC_ARG_ENABLE(static,
changequote(<<, >>)dnl
<<  --enable-static[=PKGS]  build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],
changequote([, ])dnl
[p=${PACKAGE-default}
case $enableval in
yes) enable_static=yes ;;
no) enable_static=no ;;
*)
  enable_static=no
  # Look at the argument we got.  We use all the common list separators.
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
  for pkg in $enableval; do
    if test "X$pkg" = "X$p"; then
      enable_static=yes
    fi
  done
  IFS="$ac_save_ifs"
  ;;
esac],
enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
])

# AC_DISABLE_STATIC - set the default static flag to --disable-static
AC_DEFUN([AC_DISABLE_STATIC],
[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
AC_ENABLE_STATIC(no)])


# AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag
# Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]
#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
#   `yes'.
AC_DEFUN([AC_ENABLE_FAST_INSTALL],
[define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
AC_ARG_ENABLE(fast-install,
changequote(<<, >>)dnl
<<  --enable-fast-install[=PKGS]  optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],
changequote([, ])dnl
[p=${PACKAGE-default}
case $enableval in
yes) enable_fast_install=yes ;;
no) enable_fast_install=no ;;
*)
  enable_fast_install=no
  # Look at the argument we got.  We use all the common list separators.
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
  for pkg in $enableval; do
    if test "X$pkg" = "X$p"; then
      enable_fast_install=yes
    fi
  done
  IFS="$ac_save_ifs"
  ;;
esac],
enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl
])

# AC_DISABLE_FAST_INSTALL - set the default to --disable-fast-install
AC_DEFUN([AC_DISABLE_FAST_INSTALL],
[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
AC_ENABLE_FAST_INSTALL(no)])

# AC_LIBTOOL_PICMODE - implement the --with-pic flag
# Usage: AC_LIBTOOL_PICMODE[(MODE)]
#   Where MODE is either `yes' or `no'.  If omitted, it defaults to
#   `both'.
AC_DEFUN([AC_LIBTOOL_PICMODE],
[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
pic_mode=ifelse($#,1,$1,default)])


# AC_PATH_TOOL_PREFIX - find a file program which can recognise shared library
AC_DEFUN([AC_PATH_TOOL_PREFIX],
[AC_MSG_CHECKING([for $1])
AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
[case $MAGIC_CMD in
  /*)
  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
  ;;
  ?:/*)
  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a dos path.
  ;;
  *)
  ac_save_MAGIC_CMD="$MAGIC_CMD"
  IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS=":"
dnl $ac_dummy forces splitting on constant user-supplied paths.
dnl POSIX.2 word splitting is done only on the output of word expansions,
dnl not every word.  This closes a longstanding sh security hole.
  ac_dummy="ifelse([$2], , $PATH, [$2])"
  for ac_dir in $ac_dummy; do
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/$1; then
      lt_cv_path_MAGIC_CMD="$ac_dir/$1"
      if test -n "$file_magic_test_file"; then
	case $deplibs_check_method in
	"file_magic "*)
	  file_magic_regex="`expr \"$deplibs_check_method\" : \"file_magic \(.*\)\"`"
	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
	    egrep "$file_magic_regex" > /dev/null; then
	    :
	  else
	    cat <<EOF 1>&2

*** Warning: the command libtool uses to detect shared libraries,
*** $file_magic_cmd, produces output that libtool cannot recognize.
*** The result is that libtool may fail to recognize shared libraries
*** as such.  This will affect the creation of libtool libraries that
*** depend on shared libraries, but programs linked with such libtool
*** libraries will work regardless of this problem.  Nevertheless, you
*** may want to report the problem to your system manager and/or to
*** bug-libtool@gnu.org

EOF
	  fi ;;
	esac
      fi
      break
    fi
  done
  IFS="$ac_save_ifs"
  MAGIC_CMD="$ac_save_MAGIC_CMD"
  ;;
esac])
MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
if test -n "$MAGIC_CMD"; then
  AC_MSG_RESULT($MAGIC_CMD)
else
  AC_MSG_RESULT(no)
fi
])


# AC_PATH_MAGIC - find a file program which can recognise a shared library
AC_DEFUN([AC_PATH_MAGIC],
[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])dnl
AC_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin:$PATH)
if test -z "$lt_cv_path_MAGIC_CMD"; then
  if test -n "$ac_tool_prefix"; then
    AC_PATH_TOOL_PREFIX(file, /usr/bin:$PATH)
  else
    MAGIC_CMD=:
  fi
fi
])


# AC_PROG_LD - find the path to the GNU or non-GNU linker
AC_DEFUN([AC_PROG_LD],
[AC_ARG_WITH(gnu-ld,
[  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_CANONICAL_BUILD])dnl
AC_REQUIRE([_LT_AC_LIBTOOL_SYS_PATH_SEPARATOR])dnl
ac_prog=ld
if test "$GCC" = yes; then
  # Check if gcc -print-prog-name=ld gives a path.
  AC_MSG_CHECKING([for ld used by GCC])
  case $host in
  *-*-mingw*)
    # gcc leaves a trailing carriage return which upsets mingw
    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
  *)
    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
  esac
  case $ac_prog in
    # Accept absolute paths.
    [[\\/]]* | [[A-Za-z]]:[[\\/]]*)
      re_direlt='/[[^/]][[^/]]*/\.\./'
      # Canonicalize the path of ld
      ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
	ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
      done
      test -z "$LD" && LD="$ac_prog"
      ;;
  "")
    # If it fails, then pretend we aren't using GCC.
    ac_prog=ld
    ;;
  *)
    # If it is relative, then search for the first ld in PATH.
    with_gnu_ld=unknown
    ;;
  esac
elif test "$with_gnu_ld" = yes; then
  AC_MSG_CHECKING([for GNU ld])
else
  AC_MSG_CHECKING([for non-GNU ld])
fi
AC_CACHE_VAL(lt_cv_path_LD,
[if test -z "$LD"; then
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
  for ac_dir in $PATH; do
    test -z "$ac_dir" && ac_dir=.
    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
      lt_cv_path_LD="$ac_dir/$ac_prog"
      # Check to see if the program is GNU ld.  I'd rather use --version,
      # but apparently some GNU ld's only accept -v.
      # Break only if it was the GNU/non-GNU ld that we prefer.
      if "$lt_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
	test "$with_gnu_ld" != no && break
      else
	test "$with_gnu_ld" != yes && break
      fi
    fi
  done
  IFS="$ac_save_ifs"
else
  lt_cv_path_LD="$LD" # Let the user override the test with a path.
fi])
LD="$lt_cv_path_LD"
if test -n "$LD"; then
  AC_MSG_RESULT($LD)
else
  AC_MSG_RESULT(no)
fi
test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
AC_PROG_LD_GNU
])

# AC_PROG_LD_GNU -
AC_DEFUN([AC_PROG_LD_GNU],
[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
  lt_cv_prog_gnu_ld=yes
else
  lt_cv_prog_gnu_ld=no
fi])
with_gnu_ld=$lt_cv_prog_gnu_ld
])

# AC_PROG_LD_RELOAD_FLAG - find reload flag for linker
#   -- PORTME Some linkers may need a different reload flag.
AC_DEFUN([AC_PROG_LD_RELOAD_FLAG],
[AC_CACHE_CHECK([for $LD option to reload object files], lt_cv_ld_reload_flag,
[lt_cv_ld_reload_flag='-r'])
reload_flag=$lt_cv_ld_reload_flag
test -n "$reload_flag" && reload_flag=" $reload_flag"
])

# AC_DEPLIBS_CHECK_METHOD - how to check for library dependencies
#  -- PORTME fill in with the dynamic library characteristics
AC_DEFUN([AC_DEPLIBS_CHECK_METHOD],
[AC_CACHE_CHECK([how to recognise dependent libraries],
lt_cv_deplibs_check_method,
[lt_cv_file_magic_cmd='$MAGIC_CMD'
lt_cv_file_magic_test_file=
lt_cv_deplibs_check_method='unknown'
# Need to set the preceding variable on all platforms that support
# interlibrary dependencies.
# 'none' -- dependencies not supported.
# `unknown' -- same as none, but documents that we really don't know.
# 'pass_all' -- all dependencies passed with no checks.
# 'test_compile' -- check by making test program.
# 'file_magic [[regex]]' -- check by looking for files in library path
# which responds to the $file_magic_cmd with a given egrep regex.
# If you have `file' or equivalent on your system and you're not sure
# whether `pass_all' will *always* work, you probably want this one.

case $host_os in
aix4* | aix5*)
  lt_cv_deplibs_check_method=pass_all
  ;;

beos*)
  lt_cv_deplibs_check_method=pass_all
  ;;

bsdi4*)
  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)'
  lt_cv_file_magic_cmd='/usr/bin/file -L'
  lt_cv_file_magic_test_file=/shlib/libc.so
  ;;

cygwin* | mingw* | pw32*)
  lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
  lt_cv_file_magic_cmd='$OBJDUMP -f'
  ;;

darwin* | rhapsody*)
  lt_cv_deplibs_check_method='file_magic Mach-O dynamically linked shared library'
  lt_cv_file_magic_cmd='/usr/bin/file -L'
  case "$host_os" in
  rhapsody* | darwin1.[[012]])
    lt_cv_file_magic_test_file=`echo /System/Library/Frameworks/System.framework/Versions/*/System | head -1`
    ;;
  *) # Darwin 1.3 on
    lt_cv_file_magic_test_file='/usr/lib/libSystem.dylib'
    ;;
  esac
  ;;

freebsd*)
  if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
    case $host_cpu in
    i*86 )
      # Not sure whether the presence of OpenBSD here was a mistake.
      # Let's accept both of them until this is cleared up.
      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD)/i[[3-9]]86 (compact )?demand paged shared library'
      lt_cv_file_magic_cmd=/usr/bin/file
      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
      ;;
    esac
  else
    lt_cv_deplibs_check_method=pass_all
  fi
  ;;

gnu*)
  lt_cv_deplibs_check_method=pass_all
  ;;

hpux10.20*|hpux11*)
  lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]].[[0-9]]) shared library'
  lt_cv_file_magic_cmd=/usr/bin/file
  lt_cv_file_magic_test_file=/usr/lib/libc.sl
  ;;

irix5* | irix6* | nonstopux*)
  case $host_os in
  irix5* | nonstopux*)
    # this will be overridden with pass_all, but let us keep it just in case
    lt_cv_deplibs_check_method="file_magic ELF 32-bit MSB dynamic lib MIPS - version 1"
    ;;
  *)
    case $LD in
    *-32|*"-32 ") libmagic=32-bit;;
    *-n32|*"-n32 ") libmagic=N32;;
    *-64|*"-64 ") libmagic=64-bit;;
    *) libmagic=never-match;;
    esac
    # this will be overridden with pass_all, but let us keep it just in case
    lt_cv_deplibs_check_method="file_magic ELF ${libmagic} MSB mips-[[1234]] dynamic lib MIPS - version 1"
    ;;
  esac
  lt_cv_file_magic_test_file=`echo /lib${libsuff}/libc.so*`
  lt_cv_deplibs_check_method=pass_all
  ;;

# This must be Linux ELF.
linux-gnu*)
  case $host_cpu in
  alpha* | hppa* | i*86 | mips | mipsel | powerpc* | sparc* | ia64*)
    lt_cv_deplibs_check_method=pass_all ;;
  *)
    # glibc up to 2.1.1 does not perform some relocations on ARM
    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )' ;;
  esac
  lt_cv_file_magic_test_file=`echo /lib/libc.so* /lib/libc-*.so`
  ;;

netbsd*)
  if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
    lt_cv_deplibs_check_method='match_pattern /lib[[^/\.]]+\.so\.[[0-9]]+\.[[0-9]]+$'
  else
    lt_cv_deplibs_check_method='match_pattern /lib[[^/\.]]+\.so$'
  fi
  ;;

newos6*)
  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)'
  lt_cv_file_magic_cmd=/usr/bin/file
  lt_cv_file_magic_test_file=/usr/lib/libnls.so
  ;;

openbsd*)
  lt_cv_file_magic_cmd=/usr/bin/file
  lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB shared object'
  else
    lt_cv_deplibs_check_method='file_magic OpenBSD.* shared library'
  fi
  ;;

osf3* | osf4* | osf5*)
  # this will be overridden with pass_all, but let us keep it just in case
  lt_cv_deplibs_check_method='file_magic COFF format alpha shared library'
  lt_cv_file_magic_test_file=/shlib/libc.so
  lt_cv_deplibs_check_method=pass_all
  ;;

sco3.2v5*)
  lt_cv_deplibs_check_method=pass_all
  ;;

solaris*)
  lt_cv_deplibs_check_method=pass_all
  lt_cv_file_magic_test_file=/lib/libc.so
  ;;

sysv5uw[[78]]* | sysv4*uw2*)
  lt_cv_deplibs_check_method=pass_all
  ;;

sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
  case $host_vendor in
  motorola)
    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
    ;;
  ncr)
    lt_cv_deplibs_check_method=pass_all
    ;;
  sequent)
    lt_cv_file_magic_cmd='/bin/file'
    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )'
    ;;
  sni)
    lt_cv_file_magic_cmd='/bin/file'
    lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib"
    lt_cv_file_magic_test_file=/lib/libc.so
    ;;
  siemens)
    lt_cv_deplibs_check_method=pass_all
    ;;
  esac
  ;;
esac
])
file_magic_cmd=$lt_cv_file_magic_cmd
deplibs_check_method=$lt_cv_deplibs_check_method
])


# AC_PROG_NM - find the path to a BSD-compatible name lister
AC_DEFUN([AC_PROG_NM],
[AC_REQUIRE([_LT_AC_LIBTOOL_SYS_PATH_SEPARATOR])dnl
AC_MSG_CHECKING([for BSD-compatible nm])
AC_CACHE_VAL(lt_cv_path_NM,
[if test -n "$NM"; then
  # Let the user override the test.
  lt_cv_path_NM="$NM"
else
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
  for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
    test -z "$ac_dir" && ac_dir=.
    tmp_nm=$ac_dir/${ac_tool_prefix}nm
    if test -f $tmp_nm || test -f $tmp_nm$ac_exeext ; then
      # Check to see if the nm accepts a BSD-compat flag.
      # Adding the `sed 1q' prevents false positives on HP-UX, which says:
      #   nm: unknown option "B" ignored
      # Tru64's nm complains that /dev/null is an invalid object file
      if ($tmp_nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep '(/dev/null|Invalid file or object type)' >/dev/null; then
	lt_cv_path_NM="$tmp_nm -B"
	break
      elif ($tmp_nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
	lt_cv_path_NM="$tmp_nm -p"
	break
      else
	lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
	continue # so that we can try to find one that supports BSD flags
      fi
    fi
  done
  IFS="$ac_save_ifs"
  test -z "$lt_cv_path_NM" && lt_cv_path_NM=nm
fi])
NM="$lt_cv_path_NM"
AC_MSG_RESULT([$NM])
])

# AC_CHECK_LIBM - check for math library
AC_DEFUN([AC_CHECK_LIBM],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
LIBM=
case $host in
*-*-beos* | *-*-cygwin* | *-*-pw32*)
  # These system don't have libm
  ;;
*-ncr-sysv4.3*)
  AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
  AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
  ;;
*)
  AC_CHECK_LIB(m, main, LIBM="-lm")
  ;;
esac
])

# AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
# the libltdl convenience library and LTDLINCL to the include flags for
# the libltdl header and adds --enable-ltdl-convenience to the
# configure arguments.  Note that LIBLTDL and LTDLINCL are not
# AC_SUBSTed, nor is AC_CONFIG_SUBDIRS called.  If DIR is not
# provided, it is assumed to be `libltdl'.  LIBLTDL will be prefixed
# with '${top_builddir}/' and LTDLINCL will be prefixed with
# '${top_srcdir}/' (note the single quotes!).  If your package is not
# flat and you're not using automake, define top_builddir and
# top_srcdir appropriately in the Makefiles.
AC_DEFUN([AC_LIBLTDL_CONVENIENCE],
[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
  case $enable_ltdl_convenience in
  no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
  "") enable_ltdl_convenience=yes
      ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
  esac
  LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdlc.la
  LTDLINCL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
  # For backwards non-gettext consistent compatibility...
  INCLTDL="$LTDLINCL"
])

# AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
# the libltdl installable library and LTDLINCL to the include flags for
# the libltdl header and adds --enable-ltdl-install to the configure
# arguments.  Note that LIBLTDL and LTDLINCL are not AC_SUBSTed, nor is
# AC_CONFIG_SUBDIRS called.  If DIR is not provided and an installed
# libltdl is not found, it is assumed to be `libltdl'.  LIBLTDL will
# be prefixed with '${top_builddir}/' and LTDLINCL will be prefixed
# with '${top_srcdir}/' (note the single quotes!).  If your package is
# not flat and you're not using automake, define top_builddir and
# top_srcdir appropriately in the Makefiles.
# In the future, this macro may have to be called after AC_PROG_LIBTOOL.
AC_DEFUN([AC_LIBLTDL_INSTALLABLE],
[AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
  AC_CHECK_LIB(ltdl, main,
  [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
  [if test x"$enable_ltdl_install" = xno; then
     AC_MSG_WARN([libltdl not installed, but installation disabled])
   else
     enable_ltdl_install=yes
   fi
  ])
  if test x"$enable_ltdl_install" = x"yes"; then
    ac_configure_args="$ac_configure_args --enable-ltdl-install"
    LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdl.la
    LTDLINCL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])
  else
    ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
    LIBLTDL="-lltdl"
    LTDLINCL=
  fi
  # For backwards non-gettext consistent compatibility...
  INCLTDL="$LTDLINCL"
])

# old names
AC_DEFUN([AM_PROG_LIBTOOL],   [AC_PROG_LIBTOOL])
AC_DEFUN([AM_ENABLE_SHARED],  [AC_ENABLE_SHARED($@)])
AC_DEFUN([AM_ENABLE_STATIC],  [AC_ENABLE_STATIC($@)])
AC_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
AC_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
AC_DEFUN([AM_PROG_LD],        [AC_PROG_LD])
AC_DEFUN([AM_PROG_NM],        [AC_PROG_NM])

# This is just to silence aclocal about the macro not being used
ifelse([AC_DISABLE_FAST_INSTALL])

############################################################
# NOTE: This macro has been submitted for inclusion into   #
#  GNU Autoconf as AC_PROG_SED.  When it is available in   #
#  a released version of Autoconf we should remove this    #
#  macro and use it instead.                               #
############################################################
# LT_AC_PROG_SED
# --------------
# Check for a fully-functional sed program, that truncates
# as few characters as possible.  Prefer GNU sed if found.
AC_DEFUN([LT_AC_PROG_SED],
[AC_MSG_CHECKING([for a sed that does not truncate output])
AC_CACHE_VAL(lt_cv_path_SED,
[# Loop through the user's path and test for sed and gsed.
# Then use that list of sed's as ones to test for truncation.
as_executable_p="test -f"
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_prog in sed gsed; do
    for ac_exec_ext in '' $ac_executable_extensions; do
      if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
        _sed_list="$_sed_list $as_dir/$ac_prog$ac_exec_ext"
      fi
    done
  done
done

  # Create a temporary directory, and hook for its removal unless debugging.
$debug ||
{
  trap 'exit_status=$?; rm -rf $tmp && exit $exit_status' 0
  trap '{ (exit 1); exit 1; }' 1 2 13 15
}

# Create a (secure) tmp directory for tmp files.
: ${TMPDIR=/tmp}
{
  tmp=`(umask 077 && mktemp -d -q "$TMPDIR/sedXXXXXX") 2>/dev/null` &&
  test -n "$tmp" && test -d "$tmp"
}  ||
{
  tmp=$TMPDIR/sed$$-$RANDOM
  (umask 077 && mkdir $tmp)
} ||
{
   echo "$me: cannot create a temporary directory in $TMPDIR" >&2
   { (exit 1); exit 1; }
}
  _max=0
  _count=0
  # Add /usr/xpg4/bin/sed as it is typically found on Solaris
  # along with /bin/sed that truncates output.
  for _sed in $_sed_list /usr/xpg4/bin/sed; do
    test ! -f ${_sed} && break
    cat /dev/null > "$tmp/sed.in"
    _count=0
    echo ${ECHO_N-$ac_n} "0123456789${ECHO_C-$ac_c}" >"$tmp/sed.in"
    # Check for GNU sed and select it if it is found.
    if "${_sed}" --version 2>&1 < /dev/null | egrep '(GNU)' > /dev/null; then
      lt_cv_path_SED=${_sed}
      break
    fi
    while true; do
      cat "$tmp/sed.in" "$tmp/sed.in" >"$tmp/sed.tmp"
      mv "$tmp/sed.tmp" "$tmp/sed.in"
      cp "$tmp/sed.in" "$tmp/sed.nl"
      echo >>"$tmp/sed.nl"
      ${_sed} -e 's/a$//' < "$tmp/sed.nl" >"$tmp/sed.out" || break
      cmp -s "$tmp/sed.out" "$tmp/sed.nl" || break
      # 40000 chars as input seems more than enough
      test $_count -gt 10 && break
      _count=`expr $_count + 1`
      if test $_count -gt $_max; then
        _max=$_count
        lt_cv_path_SED=$_sed
      fi
    done
  done
  rm -rf "$tmp"
])
if test "X$SED" != "X"; then
  lt_cv_path_SED=$SED
else
  SED=$lt_cv_path_SED
fi
AC_MSG_RESULT([$SED])
])