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### java.m4 -- macros for Java environment detection    -*- Autoconf -*-
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### java.m4 -- macros for Java environment detection    -*- Autoconf -*-
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###
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###
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### Copyright (C) 2005 R Core Team
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### Copyright (C) 2005-7 R Core Team
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###
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###
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### This file is part of R.
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### This file is part of R.
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###
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###
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### R is free software; you can redistribute it and/or modify it under
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### R is free software; you can redistribute it and/or modify it under
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### the terms of the GNU General Public License as published by the Free
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### the terms of the GNU General Public License as published by the Free
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AC_PATH_PROGS(JAVAC,javac,,${JAVA_PATH})
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AC_PATH_PROGS(JAVAC,javac,,${JAVA_PATH})
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AC_PATH_PROGS(JAVAH,javah,,${JAVA_PATH})
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AC_PATH_PROGS(JAVAH,javah,,${JAVA_PATH})
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AC_PATH_PROGS(JAR,jar,,${JAVA_PATH})
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AC_PATH_PROGS(JAR,jar,,${JAVA_PATH})
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 80 
 
81 
## we don't require a compiler, but it would be useful
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## we don't require a compiler, but it would be useful
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AC_MSG_CHECKING([whether Java compiler works])
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AC_CACHE_CHECK([whether Java compiler works], [r_cv_javac_works],
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acx_javac_works=no
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[r_cv_javac_works=no
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if test -n "${JAVAC}"; then
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if test -n "${JAVAC}"; then
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  rm -f A.java A.class
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  rm -f A.java A.class
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  echo "public class A { }" > A.java
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  echo "public class A { }" > A.java
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  if "${JAVAC}" A.java 2>&AS_MESSAGE_LOG_FD; then
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  if "${JAVAC}" A.java 2>&AS_MESSAGE_LOG_FD; then
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    if test -e A.class; then
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    if test -e A.class; then
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      acx_javac_works=yes
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      r_cv_javac_works=yes
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    fi
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    fi
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  fi
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  fi
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  rm -rf A.java A.class
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  rm -rf A.java A.class
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fi
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fi])
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if test "${acx_javac_works}" = yes; then
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  AC_MSG_RESULT([yes])
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else
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  JAVAC=
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  AC_MSG_RESULT([no])
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fi
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100 
 
 94 
 
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## this is where our test-class lives (in tools directory)
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## this is where our test-class lives (in tools directory)
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getsp_cp=${ac_aux_dir}
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getsp_cp=${ac_aux_dir}
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 97 
 
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AC_MSG_CHECKING([whether Java interpreter works])
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AC_CACHE_CHECK([whether Java interpreter works], [r_cv_java_works],
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acx_java_works=no
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[r_cv_java_works=no
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if test -n "${JAVA}" ; then
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if test -n "${JAVA}" ; then
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  R_RUN_JAVA(acx_jc_result,[-classpath ${getsp_cp} getsp -test])
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  R_RUN_JAVA(acx_jc_result,[-classpath ${getsp_cp} getsp -test])
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  if test "${acx_jc_result}" = "Test1234OK"; then
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  if test "${acx_jc_result}" = "Test1234OK"; then
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    acx_java_works=yes
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    r_cv_java_works=yes
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  fi
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  fi
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  acx_jc_result=
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  acx_jc_result=
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fi
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fi])
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 107 
 
114 
if test ${acx_java_works} = yes; then
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if test ${r_cv_java_works} = yes; then
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  AC_MSG_RESULT([yes])
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- 
 
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  ## we cannot cache this part without caching JAVA_HOME
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  AC_MSG_CHECKING([for Java environment])
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  AC_MSG_CHECKING([for Java environment])
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 - 
 
- 
 
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  r_cv_java_env="not found"
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  ## find JAVA_HOME from Java itself unless specified
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  ## find JAVA_HOME from Java itself unless specified
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  if test -z "${JAVA_HOME}" ; then
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  if test -z "${JAVA_HOME}" ; then
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    R_RUN_JAVA(JAVA_HOME,[-classpath ${getsp_cp} getsp java.home])
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    R_RUN_JAVA(JAVA_HOME,[-classpath ${getsp_cp} getsp java.home])
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  fi
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  fi
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  ## the availability of JAVA_HOME will tell us whether it's supported
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  ## the availability of JAVA_HOME will tell us whether it's supported
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  if test -z "${JAVA_HOME}" ; then
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  if test -n "${JAVA_HOME}" ; then
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    if test x$acx_java_env_msg != xyes; then
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    r_cv_java_env="in ${JAVA_HOME}"
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      AC_MSG_RESULT([not found])
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    fi
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  fi
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  else
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    AC_MSG_RESULT([in ${JAVA_HOME}])
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  AC_MSG_RESULT([$r_cv_java_env])
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- 
 
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  if test "$r_cv_java_env" != "not found"; then
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    : ${JAVA_LIBS=~autodetect~}
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    : ${JAVA_LIBS=~autodetect~}
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    : ${JAVA_CPPFLAGS=~autodetect~}
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    : ${JAVA_CPPFLAGS=~autodetect~}
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    : ${JAVA_LD_LIBRARY_PATH=~autodetect~}
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    : ${JAVA_LD_LIBRARY_PATH=~autodetect~}
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    custom_JAVA_LIBS="${JAVA_LIBS}"
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    custom_JAVA_LIBS="${JAVA_LIBS}"
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    custom_JAVA_CPPFLAGS="${JAVA_CPPFLAGS}"
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    custom_JAVA_CPPFLAGS="${JAVA_CPPFLAGS}"
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    if test "${custom_JAVA_LD_LIBRARY_PATH}" != '~autodetect~'; then
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    if test "${custom_JAVA_LD_LIBRARY_PATH}" != '~autodetect~'; then
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      JAVA_LD_LIBRARY_PATH="${custom_JAVA_LD_LIBRARY_PATH}"
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      JAVA_LD_LIBRARY_PATH="${custom_JAVA_LD_LIBRARY_PATH}"
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    fi
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    fi
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    ## try to link a simple JNI program
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    ## try to link a simple JNI program
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    AC_MSG_CHECKING([whether JNI programs can be compiled])
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    AC_CACHE_CHECK([whether JNI programs can be compiled], [r_cv_jni],
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    [r_cv_jni=
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    j_save_LIBS="${LIBS}"
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    j_save_LIBS="${LIBS}"
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    j_save_CPPF="${CPPFLAGS}"
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    j_save_CPPF="${CPPFLAGS}"
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    LIBS="${JAVA_LIBS}"
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    LIBS="${JAVA_LIBS}"
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    CPPFLAGS="${JAVA_CPPFLAGS}"
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    CPPFLAGS="${JAVA_CPPFLAGS}"
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    AC_LINK_IFELSE([
 209 
    AC_LINK_IFELSE([
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#include <jni.h>
 210 
#include <jni.h>
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int main(void) {
 211 
int main(void) {
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    JNI_CreateJavaVM(0, 0, 0);
 212 
    JNI_CreateJavaVM(0, 0, 0);
219 
    return 0;
 213 
    return 0;
220 
}
 214 
}
221 
],[AC_MSG_RESULT(yes)
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],[r_cv_jni="yes"],[
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    LIBS="${j_save_LIBS}"
 - 
 
223 
    CPPFLAGS="${j_save_CPPF}"
 - 
 
224 
],[
 - 
 
225 
    if test "${acx_java_uses_custom_flags}" = yes; then
 216 
    if test "${acx_java_uses_custom_flags}" = yes; then
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      AC_MSG_RESULT(no)
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      r_cv_jni=no
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      AC_MSG_ERROR([Failed to compile a JNI program with custom JAVA_LIBS/JAVA_CPPFLAGS.
 218 
      AC_MSG_ERROR([Failed to compile a JNI program with custom JAVA_LIBS/JAVA_CPPFLAGS.
228 
See config.log for details.
 219 
See config.log for details.
229 
Do NOT set JAVA_LIBS/JAVA_CPPFLAGS unless you are sure they are correct!
 220 
Do NOT set JAVA_LIBS/JAVA_CPPFLAGS unless you are sure they are correct!
230 
Java/JNI support is optional unless you set either JAVA_LIBS or JAVA_CPPFLAGS.])
 221 
Java/JNI support is optional unless you set either JAVA_LIBS or JAVA_CPPFLAGS.])
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    fi
 222 
    fi
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#include <jni.h>
 226 
#include <jni.h>
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int main(void) {
 227 
int main(void) {
237 
    JNI_CreateJavaVM(0, 0, 0);
 228 
    JNI_CreateJavaVM(0, 0, 0);
238 
    return 0;
 229 
    return 0;
239 
}
 230 
}
240 
],[AC_MSG_RESULT([yes (with pthreads)])
 231 
],[r_cv_jni="yes (with pthreads)"],[r_cv_jni="no"])])
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    JAVA_LIBS0="${JAVA_LIBS0} -lpthread"
 - 
 
242 
],[AC_MSG_RESULT(no)])
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243 
    LIBS="${j_save_LIBS}"
 232 
    LIBS="${j_save_LIBS}"
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    CPPFLAGS="${j_save_CPPF}"
 233 
    CPPFLAGS="${j_save_CPPF}"
245 
])
 234 
])
- 
 
 235 
    ##AC_MSG_RESULT([$r_cv_jni])
- 
 
 236 
    if test "$r_cv_jni"="yes (with pthreads)"; then
- 
 
 237 
      JAVA_LIBS0="${JAVA_LIBS0} -lpthread"
246 
 
 238 
    fi
247 
    have_java=yes
 239 
    have_java=yes
248 
  fi
 240 
  fi
249 
else
 - 
 
250 
  AC_MSG_RESULT([no])
 241 
else  ## not r_cv_java_works
251 
  JAVA=
 242 
  JAVA=
252 
  JAVA_HOME=
 243 
  JAVA_HOME=
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fi
 244 
fi
254 
 
 245 
 
255 
AC_SUBST(JAVA_HOME)
 246 
AC_SUBST(JAVA_HOME)