## config -- Simple shell script to get the values of basic R configure
## variables, or the header and library flags necessary for linking
## against R.
##
## Usage:
## R CMD config [options] [VAR]
## Copyright (C) 2002-6 The R Core Development Team
##
## This document 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, 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.
##
## A copy of the GNU General Public License is available at
## http://www.r-project.org/Licenses/
revision='$Revision$'
version=`set - ${revision}; echo ${2}`
version="R configuration information retrieval script: ${R_VERSION} (r${version})
Copyright (C) 2002-6 The R Core Development Team.
This is free software; see the GNU General Public License version 2
or later for copying conditions. There is NO warranty."
usage="Usage: R CMD config [options] [VAR]
Get the value of a basic R configure variable VAR which must be among
those listed in the 'Variables' section below, or the header and
library flags necessary for linking against R.
Options:
-h, --help print short help message and exit
-v, --version print version info and exit
--cppflags print pre-processor flags required to compile
a program using R as a library
--ldflags print linker flags needed for linking against
the R library
Variables:
BLAS_LIBS flags needed for linking against external BLAS libraries
CC C compiler command
CFLAGS C compiler flags
CPICFLAGS special flags for compiling C code to be turned into a
shared library
CPP C preprocessor
CPPFLAGS C/C++ preprocessor flags, e.g. -I
if you have
headers in a nonstandard directory
CXX C++ compiler command
CXXCPP C++ preprocessor
CXXFLAGS C++ compiler flags
CXXPICFLAGS special flags for compiling C++ code to be turned into a
shared library
DYLIB_EXT file extension (including '.') for dynamic libraries
DYLIB_LD command for linking dynamic libraries which contain
object files from a C or Fortran compiler only
DYLIB_LDFLAGS
special flags used by DYLIB_LD
F77 Fortran 77 compiler command
FFLAGS Fortran 77 compiler flags
FLIBS linker flags needed to link Fortran code
FPICFLAGS special flags for compiling Fortran code to be turned
into a shared library
FC Fortran 9x compiler command
FCFLAGS Fortran 9x compiler flags
FCPICFLAGS special flags for compiling Fortran 9x code to be turned
into a shared library
JAR Java archive tool command
JAVA Java interpreter command
JAVAC Java compiler command
JAVAH Java header and stub generator command
JAVA_HOME path to the home of Java distribution
JAVA_LIBS flags needed for linking against Java libraries
JAVA_CPPFLAGS C preprocessor flags needed for compiling JNI programs
LAPACK_LIBS flags needed for linking against external LAPACK libraries
LIBnn location for libraries, e.g. 'lib' or 'lib64' on this platform
LDFLAGS linker flags, e.g. -L if you have libraries in a
nonstandard directory
OBJC Objective C compiler command
OBJCFLAGS Objective C compiler flags
MAKE Make command
SAFE_FFLAGS Safe (as conformant as possible) Fortran 77 compiler flags
SHLIB_CFLAGS additional CFLAGS used when building shared objects
SHLIB_CXXLD command for linking shared objects which contain
object files from a C++ compiler
SHLIB_CXXLDFLAGS
special flags used by SHLIB_CXXLD
SHLIB_EXT file extension (including '.') for shared objects
SHLIB_FFLAGS additional FFLAGS used when building shared objects
SHLIB_LD command for linking shared objects which contain
object files from a C or Fortran compiler only
SHLIB_LDFLAGS
special flags used by SHLIB_LD
SHLIB_FCLD, SHLIB_FCLDFLAGS
ditto when using Fortran 9x
TCLTK_CPPFLAGS
flags needed for finding the tcl.h and tk.h headers
TCLTK_LIBS flags needed for linking against the Tcl and Tk libraries
Report bugs to ."
##
## The variables are basically the precious configure variables (with
## the R_* and MAIN_* ones removed), plus FLIBS and BLAS_LIBS.
## One could use
## precious_configure_vars=`~/src/R/configure --help \
## | sed -n '/^Some influential/,/^[^ ]/p' \
## | sed '/^[^ ]/d' \
## | sed 's/^ //' \
## | cut -f1 -d ' ' \
## | grep -v '^MAIN_' \
## | grep -v '^R_' \
## | sort \
## | uniq`
## to obtain the configure vars and hence create most of the above usage
## info as well as the list of accepted variables below automatically.
##
if test $# = 0; then
echo "${usage}"
exit 1
fi
if test "${R_OSTYPE}" = "windows"; then
MAKE=make
R_DOC_DIR=${R_HOME}/doc
R_INCLUDE_DIR=${R_HOME}/include
R_SHARE_DIR=${R_HOME}/share
R_ARCH=
fi
makefiles="-f ${R_HOME}/etc${R_ARCH}/Makeconf -f ${R_SHARE_DIR}/make/config.mk"
## avoid passing down -jN
MAKEFLAGS=
export MAKEFLAGS
query="${MAKE} -s ${makefiles} print R_HOME=${R_HOME}"
LIBR=`eval $query VAR=LIBR`
STATIC_LIBR=`eval $query VAR=STATIC_LIBR`
if test -n "${R_ARCH}"; then
includes="-I${R_INCLUDE_DIR} -I${R_INCLUDE_DIR}${R_ARCH}"
else
includes="-I${R_INCLUDE_DIR}"
fi
var=
while test -n "${1}"; do
case "${1}" in
-h|--help)
echo "${usage}"; exit 0 ;;
-v|--version)
echo "${version}"; exit 0 ;;
--cppflags)
if test -z "${LIBR}"; then
if test -z "${STATIC_LIBR}"; then
echo "R was not built as a library" >&2
else
echo "${includes}"
fi
else
echo "${includes}"
fi
exit 0
;;
--ldflags)
if test -z "${LIBR}"; then
if test -z "${STATIC_LIBR}"; then
echo "R was not built as a library" >&2
else
echo "${STATIC_LIBR}"
fi
else
echo "${LIBR}"
fi
exit 0
;;
*)
if test -z "${var}"; then
var="${1}"
else
echo "ERROR: cannot query more than one variable" >&2
exit 1
fi
;;
esac
shift
done
ok_c_vars="CC CFLAGS CPICFLAGS CPP CPPFLAGS"
ok_cxx_vars="CXX CXXCPP CXXFLAGS CXXPICFLAGS"
ok_dylib_vars="DYLIB_EXT DYLIB_LD DYLIB_LDFLAGS"
ok_objc_vars="OBJC OBJCFLAGS"
ok_java_vars="JAVA JAVAC JAVAH JAR JAVA_HOME JAVA_LIBS JAVA_CPPFLAGS"
ok_f77_vars="F77 FFLAGS FPICFLAGS FLIBS SAFE_FFLAGS FC FCFLAGS FCPICFLAGS"
ok_ld_vars="LDFLAGS"
ok_shlib_vars="SHLIB_CFLAGS SHLIB_CXXLD SHLIB_CXXLDFLAGS SHLIB_EXT SHLIB_FFLAGS SHLIB_LD SHLIB_LDFLAGS SHLIB_FCLD SHLIB_FCLDFLAGS"
ok_tcltk_vars="TCLTK_CPPFLAGS TCLTK_LIBS"
ok_other_vars="BLAS_LIBS LAPACK_LIBS MAKE LIBnn"
## Can we do this elegantly using case?
var_ok=no
for v in ${ok_c_vars} ${ok_cxx_vars} ${ok_dylib_vars} ${ok_f77_vars} \
${ok_objc_vars} ${ok_java_vars} \
${ok_ld_vars} ${ok_shlib_vars} ${ok_tcltk_vars} \
${ok_other_vars}; do
if test "${var}" = "${v}"; then
var_ok=yes
break
fi
done
if test "${var_ok}" = yes; then
eval "${query} VAR=${var}"
else
echo "ERROR: no information for variable '${var}'"
exit 1
fi
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