# ===========================================================================

#       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 7

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"

        ax_prog_javah_bin_dir=`AS_DIRNAME([$ac_cv_path_JAVAH])`

        ac_dir="`AS_DIRNAME([$ax_prog_javah_bin])`/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"])

      ])

])