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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<title>
Autoconf Macro: ac_jni_include_dir
</title>
<link rel="stylesheet" type="text/css" href="ac-archive.css">
</head>
<body>
<table summary="web navigation" style="width:100%;">
<tbody>
<tr>
<td style="width:50%;" align="center">
<a href="http://autoconf-archive.cryp.to/ac_jni_include_dir.m4">Download
M4 Source</a>
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<a href="macros-by-category.html">Macro Index Page</a>
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<hr>
<h1>
ac_jni_include_dir
</h1>
<h2>
Synopsis
</h2>
<p class="indent" style="white-space:nowrap;">
<code>AC_JNI_INCLUDE_DIR</code>
</p>
<h2>
Description
</h2>
<div class="indent">
<p>
AC_JNI_INCLUDE_DIR finds include directories needed for compiling programs
using the JNI interface.
</p>
<p>
JNI include directories are usually in the java distribution This is
deduced from the value of JAVAC. When this macro completes, a list of
directories is left in the variable JNI_INCLUDE_DIRS.
</p>
<p>
Example usage follows:
</p>
<pre>
AC_JNI_INCLUDE_DIR
for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS
do
CPPFLAGS="$CPPFLAGS -I$JNI_INCLUDE_DIR"
done
</pre>
<p>
If you want to force a specific compiler:
</p>
<p>
- at the configure.in level, set JAVAC=yourcompiler before calling
AC_JNI_INCLUDE_DIR
</p>
<p>
- at the configure level, setenv JAVAC
</p>
<p>
Note: This macro can work with the autoconf M4 macros for Java programs.
This particular macro is not part of the original set of macros.
</p>
</div>
<h2>
Author
</h2>
<p class="indent">
Don Anderson <dda@sleepycat.com>
</p>
<h2>
Last Modified
</h2>
<p class="indent">
2004-11-23
</p>
<h2>
M4 Source Code
</h2>
<div class="indent">
<pre class="m4source">
AC_DEFUN([AC_JNI_INCLUDE_DIR],[
JNI_INCLUDE_DIRS=""
test "x$JAVAC" = x && AC_MSG_ERROR(['$JAVAC' undefined])
AC_PATH_PROG(_ACJNI_JAVAC, $JAVAC, no)
test "x$_ACJNI_JAVAC" = xno && AC_MSG_ERROR([$JAVAC could not be found in path])
_ACJNI_FOLLOW_SYMLINKS("$_ACJNI_JAVAC")
_JTOPDIR=`echo "$_ACJNI_FOLLOWED" | sed -e 's://*:/:g' -e 's:/[[^/]]*$::'`
case "$host_os" in
darwin*) _JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'`
_JINC="$_JTOPDIR/Headers";;
*) _JINC="$_JTOPDIR/include";;
esac
if test -f "$_JINC/jni.h"; then
JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JINC"
else
_JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'`
if test -f "$_JTOPDIR/include/jni.h"; then
JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JTOPDIR/include"
else
AC_MSG_ERROR([cannot find java include files])
fi
fi
# get the likely subdirectories for system specific java includes
case "$host_os" in
bsdi*) _JNI_INC_SUBDIRS="bsdos";;
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
</pre>
</div>
</body>
</html>
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