| # =========================================================================== |
| # http://www.gnu.org/software/autoconf-archive/ax_prog_javah.html |
| # =========================================================================== |
| # |
| # SYNOPSIS |
| # |
| # AX_PROG_JAVAH |
| # |
| # DESCRIPTION |
| # |
| # AX_PROG_JAVAH tests the availability of the javah header generator and |
| # looks for the jni.h header file. If available, JAVAH is set to the full |
| # path of javah and CPPFLAGS is updated accordingly. |
| # |
| # LICENSE |
| # |
| # Copyright (c) 2008 Luc Maisonobe <luc@spaceroots.org> |
| # |
| # 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. |
| |
| #serial 8 |
| |
| AU_ALIAS([AC_PROG_JAVAH], [AX_PROG_JAVAH]) |
| AC_DEFUN([AX_PROG_JAVAH],[ |
| AC_REQUIRE([AC_CANONICAL_BUILD])dnl |
| AC_REQUIRE([AC_PROG_CPP])dnl |
| AC_PATH_PROG(JAVAH,javah) |
| AS_IF([test -n "$ac_cv_path_JAVAH"], |
| [ |
| AC_TRY_CPP([#include <jni.h>],,[ |
| ac_save_CPPFLAGS="$CPPFLAGS" |
| _ACJAVAH_FOLLOW_SYMLINKS("$ac_cv_path_JAVAH") |
| ax_prog_javah_bin_dir=`AS_DIRNAME([$_ACJAVAH_FOLLOWED])` |
| ac_dir="`AS_DIRNAME([$ax_prog_javah_bin_dir])`/include" |
| AS_CASE([$build_os], |
| [cygwin*], |
| [ac_machdep=win32], |
| [ac_machdep=`AS_ECHO($build_os) | sed 's,[[-0-9]].*,,'`]) |
| CPPFLAGS="$ac_save_CPPFLAGS -I$ac_dir -I$ac_dir/$ac_machdep" |
| AC_TRY_CPP([#include <jni.h>], |
| ac_save_CPPFLAGS="$CPPFLAGS", |
| AC_MSG_WARN([unable to include <jni.h>])) |
| CPPFLAGS="$ac_save_CPPFLAGS"]) |
| ]) |
| ]) |
| |
| AC_DEFUN([_ACJAVAH_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 |
| _ACJAVAH_FOLLOWED="$_cur" |
| ]) |