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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_jni_include_dir.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_JNI_INCLUDE_DIR
#
# DESCRIPTION
#
# AX_JNI_INCLUDE_DIR finds include directories needed for compiling
# programs using the JNI interface.
#
# JNI include directories are usually in the Java distribution. This is
# deduced from the value of $JAVA_HOME, $JAVAC, or the path to "javac", in
# that order. When this macro completes, a list of directories is left in
# the variable JNI_INCLUDE_DIRS.
#
# Example usage follows:
#
# AX_JNI_INCLUDE_DIR
#
# for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS
# do
# CPPFLAGS="$CPPFLAGS -I$JNI_INCLUDE_DIR"
# done
#
# If you want to force a specific compiler:
#
# - at the configure.in level, set JAVAC=yourcompiler before calling
# AX_JNI_INCLUDE_DIR
#
# - at the configure level, setenv JAVAC
#
# Note: This macro can work with the autoconf M4 macros for Java programs.
# This particular macro is not part of the original set of macros.
#
# LICENSE
#
# Copyright (c) 2008 Don Anderson <dda@sleepycat.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#
# TSK: This has been modifed to not error out if JNI things cannot be resolved
#serial 11
AU_ALIAS([AC_JNI_INCLUDE_DIR], [AX_JNI_INCLUDE_DIR])
AC_DEFUN([AX_JNI_INCLUDE_DIR],[
JNI_INCLUDE_DIRS=""
if test "x$JAVA_HOME" != x; then
_JTOPDIR="$JAVA_HOME"
else
if test "x$JAVAC" = x; then
JAVAC=javac
fi
AC_PATH_PROG([_ACJNI_JAVAC], [$JAVAC], [no])
if test "x$_ACJNI_JAVAC" = xno; then
AS_ECHO(["cannot find JDK; try setting \$JAVAC or \$JAVA_HOME"])
else
_ACJNI_FOLLOW_SYMLINKS("$_ACJNI_JAVAC")
_JTOPDIR=`echo "$_ACJNI_FOLLOWED" | sed -e 's://*:/:g' -e 's:/[[^/]]*$::'`
fi
fi
case "$host_os" in
darwin*) # Apple JDK is at /System location and has headers symlinked elsewhere
case "$_JTOPDIR" in
/System/Library/Frameworks/JavaVM.framework/*)
_JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'`
_JINC="$_JTOPDIR/Headers";;
*) _JINC="$_JTOPDIR/include";;
esac;;
*) _JINC="$_JTOPDIR/include";;
esac
_AS_ECHO_LOG([_JTOPDIR=$_JTOPDIR])
_AS_ECHO_LOG([_JINC=$_JINC])
# On Mac OS X 10.6.4, jni.h is a symlink:
# /System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers/jni.h
# -> ../../CurrentJDK/Headers/jni.h.
AC_CHECK_FILE([$_JINC/jni.h],
[JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JINC"],
[_JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'`
AC_CHECK_FILE([$_JTOPDIR/include/jni.h],
[JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JTOPDIR/include"],
AS_ECHO(["cannot find JDK header files"]))
])
# get the likely subdirectories for system specific java includes
case "$host_os" in
bsdi*) _JNI_INC_SUBDIRS="bsdos";;
freebsd*) _JNI_INC_SUBDIRS="freebsd";;
darwin*) _JNI_INC_SUBDIRS="darwin";;
linux*) _JNI_INC_SUBDIRS="linux genunix";;
osf*) _JNI_INC_SUBDIRS="alpha";;
solaris*) _JNI_INC_SUBDIRS="solaris";;
mingw*) _JNI_INC_SUBDIRS="win32";;
cygwin*) _JNI_INC_SUBDIRS="win32";;
*) _JNI_INC_SUBDIRS="genunix";;
esac
# add any subdirectories that are present
for JINCSUBDIR in $_JNI_INC_SUBDIRS
do
if test -d "$_JTOPDIR/include/$JINCSUBDIR"; then
JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JTOPDIR/include/$JINCSUBDIR"
fi
done
])
# _ACJNI_FOLLOW_SYMLINKS <path>
# Follows symbolic links on <path>,
# finally setting variable _ACJNI_FOLLOWED
# ----------------------------------------
AC_DEFUN([_ACJNI_FOLLOW_SYMLINKS],[
# find the include directory relative to the javac executable
_cur="$1"
while ls -ld "$_cur" 2>/dev/null | grep " -> " >/dev/null; do
AC_MSG_CHECKING([symlink for $_cur])
_slink=`ls -ld "$_cur" | sed 's/.* -> //'`
case "$_slink" in
/*) _cur="$_slink";;
# 'X' avoids triggering unwanted echo options.
*) _cur=`echo "X$_cur" | sed -e 's/^X//' -e 's:[[^/]]*$::'`"$_slink";;
esac
AC_MSG_RESULT([$_cur])
done
_ACJNI_FOLLOWED="$_cur"
])# _ACJNI
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