tests: make functions static in test_notification.c
[lttng-tools.git] / m4 / ax_prog_javah.m4
1 # ===========================================================================
2 # https://www.gnu.org/software/autoconf-archive/ax_prog_javah.html
3 # ===========================================================================
4 #
5 # SYNOPSIS
6 #
7 # AX_PROG_JAVAH
8 #
9 # DESCRIPTION
10 #
11 # AX_PROG_JAVAH tests the availability of the javah header generator and
12 # looks for the jni.h header file. If available, JAVAH is set to the full
13 # path of javah and CPPFLAGS is updated accordingly.
14 #
15 # LICENSE
16 #
17 # Copyright (c) 2008 Luc Maisonobe <luc@spaceroots.org>
18 #
19 # Copying and distribution of this file, with or without modification, are
20 # permitted in any medium without royalty provided the copyright notice
21 # and this notice are preserved. This file is offered as-is, without any
22 # warranty.
23
24 #serial 11
25
26 AU_ALIAS([AC_PROG_JAVAH], [AX_PROG_JAVAH])
27 AC_DEFUN([AX_PROG_JAVAH],[
28 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
29 AC_REQUIRE([AC_PROG_CPP])dnl
30 AC_PATH_PROG(JAVAH,javah)
31 AS_IF([test -n "$ac_cv_path_JAVAH"],
32 [
33 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <jni.h>]])],[],[
34 ac_save_CPPFLAGS="$CPPFLAGS"
35 _ACJAVAH_FOLLOW_SYMLINKS("$ac_cv_path_JAVAH")
36 ax_prog_javah_bin_dir=`AS_DIRNAME([$_ACJAVAH_FOLLOWED])`
37 ac_dir="`AS_DIRNAME([$ax_prog_javah_bin_dir])`/include"
38 AS_CASE([$build_os],
39 [cygwin*|mingw*],
40 [ac_machdep=win32],
41 [ac_machdep=`AS_ECHO($build_os) | sed 's,[[-0-9]].*,,'`])
42 CPPFLAGS="$ac_save_CPPFLAGS -I$ac_dir -I$ac_dir/$ac_machdep"
43 AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <jni.h>]])],
44 [ac_save_CPPFLAGS="$CPPFLAGS"],
45 [AC_MSG_WARN([unable to include <jni.h>])])
46 CPPFLAGS="$ac_save_CPPFLAGS"])
47 ])
48 ])
49
50 AC_DEFUN([_ACJAVAH_FOLLOW_SYMLINKS],[
51 # find the include directory relative to the javac executable
52 _cur="$1"
53 while ls -ld "$_cur" 2>/dev/null | grep " -> " >/dev/null; do
54 AC_MSG_CHECKING([symlink for $_cur])
55 _slink=`ls -ld "$_cur" | sed 's/.* -> //'`
56 case "$_slink" in
57 /*) _cur="$_slink";;
58 # 'X' avoids triggering unwanted echo options.
59 *) _cur=`echo "X$_cur" | sed -e 's/^X//' -e 's:[[^/]]*$::'`"$_slink";;
60 esac
61 AC_MSG_RESULT([$_cur])
62 done
63 _ACJAVAH_FOLLOWED="$_cur"
64 ])
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