AC_DEFUN([AC_PROG_JAVAH],[
AC_REQUIRE([AC_CANONICAL_SYSTEM])AC_REQUIRE([AC_PROG_CPP])AC_PATH_PROG(JAVAH,javah)
if test x"`eval 'echo $ac_cv_path_JAVAH'`" != x ; then
AC_TRY_CPP([ ac_save_CPPFLAGS="$CPPFLAGS"
changequote(, ) ac_dir=`echo $ac_cv_path_JAVAH | sed 's,\(.*\)/[^/]*/[^/]*$,\1/include,'`
ac_machdep=`echo $build_os | sed 's,[-0-9].*,,'`
changequote([, ]) CPPFLAGS="$ac_save_CPPFLAGS -I$ac_dir -I$ac_dir/$ac_machdep"
AC_TRY_CPP([ ac_save_CPPFLAGS="$CPPFLAGS",
AC_MSG_WARN([unable to include <jni.h>]))
CPPFLAGS="$ac_save_CPPFLAGS"])
fi])