diff options
Diffstat (limited to 'build-aux/m4/m4-obstack.m4')
| -rw-r--r-- | build-aux/m4/m4-obstack.m4 | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/build-aux/m4/m4-obstack.m4 b/build-aux/m4/m4-obstack.m4 new file mode 100644 index 00000000..fab387ba --- /dev/null +++ b/build-aux/m4/m4-obstack.m4 @@ -0,0 +1,50 @@ +# -*- Autoconf -*- +# m4-obstack.m4 -- the libc supplied version of obstacks if available. +# +# Copyright (C) 2000-2001, 2003-2004, 2006-2007, 2010, 2013 Free +# Software Foundation, Inc. +# Written by Gary V. Vaughan <gary@gnu.org> +# +# This file is part of GNU M4. +# +# GNU M4 is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# GNU M4 is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +# serial 10 + +# M4_OBSTACK +# ---------- +# Use the libc supplied version of obstacks if available. +AC_DEFUN([M4_OBSTACK], +[AC_PREREQ([2.56])dnl We use the compiler based header checking in 2.56 +AC_BEFORE([gl_OBSTACK], [M4_OBSTACK]) +AC_ARG_WITH([included-obstack], + [AS_HELP_STRING([--with-included-obstack], + [use the obstack implementation included here])]) + +AC_CHECK_HEADERS([obstack.h], [], [], [AC_INCLUDES_DEFAULT]) + +if test "x${with_included_obstack-no}" != xno; then + ac_cv_func_obstack=no +fi + +OBSTACK_H= +if test $ac_cv_func_obstack = yes; then + INCLUDE_OBSTACK_H='#include <obstack.h>' +else + INCLUDE_OBSTACK_H='#include <gnu/obstack.h>' + OBSTACK_H=obstack.h +fi +AC_SUBST([OBSTACK_H]) +AC_SUBST([INCLUDE_OBSTACK_H]) +])# M4_FUNC_OBSTACK |