1 # alloca.m4 serial 4 (gettext-0.18.2)
2 dnl Copyright (C) 2002-2003, 2006, 2011 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_FUNC_ALLOCA],
9 dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57.
10 AC_REQUIRE([AC_PROG_CPP])
11 AC_REQUIRE([AC_PROG_EGREP])
13 AC_REQUIRE([AC_FUNC_ALLOCA])
14 if test $ac_cv_func_alloca_works = no; then
18 # Define an additional variable used in the Makefile substitution.
20 AC_EGREP_CPP([Need own alloca], [
21 #if defined __GNUC__ || defined _MSC_VER || !HAVE_ALLOCA_H
28 AM_CONDITIONAL([GL_GENERATE_ALLOCA_H], [test -n "$ALLOCA_H"])
31 # Prerequisites of lib/alloca.c.
32 # STACK_DIRECTION is already handled by AC_FUNC_ALLOCA.
33 AC_DEFUN([gl_PREREQ_ALLOCA], [
34 AC_CHECK_HEADERS_ONCE(stdlib.h string.h)