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diff --git a/m4/jmm.m4 b/m4/jmm.m4
new file mode 100644
index 000000000..37c86ed55
--- /dev/null
+++ b/m4/jmm.m4
@@ -0,0 +1,42 @@
+dnl m4/jmm.m4
+dnl
+dnl Copyright (C) 2008 Theobroma Systems Ltd.
+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 jmm.h
+
+AC_DEFUN([AC_CHECK_WITH_JMM_H],[
+AC_MSG_CHECKING(where jmm.h is installed)
+AC_ARG_WITH([jmm_h],
+            [AS_HELP_STRING(--with-jmm_h=<dir>,path to jmm.h (only with --with-java-runtime-library=openjdk) [[default=${JAVA_RUNTIME_LIBRARY_PREFIX}/jdk/src/share/javavm/export]])],
+            [WITH_JMM_H=${withval}],
+            [case "${WITH_JAVA_RUNTIME_LIBRARY}" in
+                 openjdk)
+                     WITH_JMM_H=${JAVA_RUNTIME_LIBRARY_PREFIX}/jdk/src/share/javavm/export
+                     ;;
+                 *)
+                     ;;
+            esac])
+AC_MSG_RESULT(${WITH_JMM_H})
+
+AC_CHECK_HEADER([${WITH_JMM_H}/jmm.h],
+                [AC_DEFINE_UNQUOTED([INCLUDE_JMM_H], "${WITH_JMM_H}/jmm.h", [Java runtime library jmm.h header])],
+                [AC_MSG_ERROR(cannot find jmm.h)])
+])