* configure.ac (AC_CHECK_ENABLE_REPLACEMENT): Added.

[cacao.git] / m4 / replacement.m4

diff --git a/m4/replacement.m4 b/m4/replacement.m4
new file mode 100644 (file)
index 0000000..0a891be
--- /dev/null
+++ b/m4/replacement.m4
@@ -0,0 +1,41 @@
+dnl m4/replacement.m4
+dnl
+dnl Copyright (C) 2008
+dnl CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
+dnl 
+dnl This file is part of CACAO.
+dnl 
+dnl This program is free software; you can redistribute it and/or
+dnl modify it under the terms of the GNU General Public License as
+dnl published by the Free Software Foundation; either version 2, or (at
+dnl your option) any later version.
+dnl 
+dnl This program is distributed in the hope that it will be useful, but
+dnl WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+dnl General Public License for more details.
+dnl 
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; if not, write to the Free Software
+dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+dnl 02110-1301, USA.
+
+
+dnl check for replacement
+
+AC_DEFUN([AC_CHECK_ENABLE_REPLACEMENT],[
+AC_MSG_CHECKING(whether on-stack replacement should be supported)
+AC_ARG_ENABLE([replacement],
+              [AS_HELP_STRING(--enable-replacement,enable on-stack replacement [[default=no]])],
+              [case "${enableval}" in
+                   yes) ENABLE_REPLACEMENT=yes;;
+                   *) ENABLE_REPLACEMENT=no;;
+               esac],
+              [ENABLE_REPLACEMENT=no])
+AC_MSG_RESULT(${ENABLE_REPLACEMENT})
+AM_CONDITIONAL([ENABLE_REPLACEMENT], test x"${ENABLE_REPLACEMENT}" = "xyes")
+
+if test x"${ENABLE_REPLACEMENT}" = "xyes"; then
+    AC_DEFINE([ENABLE_REPLACEMENT], 1, [use on-stack replacement])
+fi
+])