+dnl Copyright (C) 2012-2013 Free Software Foundation, Inc.
+dnl
+dnl This file is part of GDB.
+dnl
+dnl This program is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 3 of the License, or
+dnl (at your option) any later version.
+dnl
+dnl This program is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+dnl GNU 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, see <http://www.gnu.org/licenses/>.
+
+dnl GDB_AC_LIBMCHECK([DEFAULT])
+dnl Provide an --enable-libmcheck/--disable-libmcheck set of options
+dnl allowing a user to enable this option even when building releases,
+dnl or to disable it when building a snapshot.
+dnl DEFAULT (yes/no) is used as default if the user doesn't set
+dnl the option explicitly.
+
+AC_DEFUN([GDB_AC_LIBMCHECK],
+[
+ AC_ARG_ENABLE(libmcheck,
+ AS_HELP_STRING([--enable-libmcheck],
+ [Try linking with -lmcheck if available]),
+ [case "${enableval}" in
+ yes | y) ENABLE_LIBMCHECK="yes" ;;
+ no | n) ENABLE_LIBMCHECK="no" ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-libmcheck) ;;
+ esac])
+
+ if test -z "${ENABLE_LIBMCHECK}"; then
+ ENABLE_LIBMCHECK=[$1]
+ fi
+
+ if test "$ENABLE_LIBMCHECK" = "yes" ; then
+ AC_CHECK_LIB(mcheck, main)
+ fi
+])