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dnl @synopsis AC_PROG_JAVAH

dnl

dnl AC_PROG_JAVAH tests the availability of the javah header generator

dnl and looks for the jni.h header file. If available, JAVAH is set to

dnl the full path of javah and CPPFLAGS is updated accordingly.

dnl

dnl @category Java

dnl @author Luc Maisonobe <luc@spaceroots.org>

dnl @version 2002-03-25

dnl @license AllPermissive

AC_DEFUN([AC_PROG_JAVAH],[

AC_REQUIRE([AC_CANONICAL_SYSTEM])dnl

AC_REQUIRE([AC_PROG_CPP])dnl

AC_PATH_PROG(JAVAH,javah)

if test x"`eval 'echo $ac_cv_path_JAVAH'`" != x ; then

AC_TRY_CPP([#include <jni.h>],,[

ac_save_CPPFLAGS="$CPPFLAGS"

changequote(, )dnl

ac_dir=`echo $ac_cv_path_JAVAH | sed 's,$.*$/[^/]*/[^/]*$,\1/include,'`

ac_machdep=`echo $build_os | sed 's,[-0-9].*,,' | sed 's,cygwin,win32,'`

changequote([, ])dnl

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"])

fi])