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504d4ace | 1 | # =========================================================================== |
6333b87b | 2 | # https://www.gnu.org/software/autoconf-archive/ax_prog_javah.html |
504d4ace DG |
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 | ||
6333b87b | 24 | #serial 11 |
504d4ace DG |
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 "$ac_cv_path_JAVAH"], | |
32 | [ | |
6333b87b | 33 | AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <jni.h>]])],[],[ |
504d4ace | 34 | ac_save_CPPFLAGS="$CPPFLAGS" |
6333b87b MJ |
35 | _ACJAVAH_FOLLOW_SYMLINKS("$ac_cv_path_JAVAH") |
36 | ax_prog_javah_bin_dir=`AS_DIRNAME([$_ACJAVAH_FOLLOWED])` | |
37 | ac_dir="`AS_DIRNAME([$ax_prog_javah_bin_dir])`/include" | |
504d4ace | 38 | AS_CASE([$build_os], |
6333b87b | 39 | [cygwin*|mingw*], |
504d4ace DG |
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/$ac_machdep" | |
6333b87b MJ |
43 | AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <jni.h>]])], |
44 | [ac_save_CPPFLAGS="$CPPFLAGS"], | |
45 | [AC_MSG_WARN([unable to include <jni.h>])]) | |
504d4ace DG |
46 | CPPFLAGS="$ac_save_CPPFLAGS"]) |
47 | ]) | |
48 | ]) | |
6333b87b MJ |
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 | ]) |