# alloca.m4 serial 4 (gettext-0.18.2)

dnl Copyright (C) 2002-2003, 2006, 2011, 2015 Free Software Foundation,

dnl Inc.

dnl This file is free software; the Free Software Foundation

dnl gives unlimited permission to copy and/or distribute it,

dnl with or without modifications, as long as this notice is preserved.

AC_DEFUN([gl_FUNC_ALLOCA],

[

  dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57.

  AC_REQUIRE([AC_PROG_CPP])

  AC_REQUIRE([AC_PROG_EGREP])

  AC_REQUIRE([AC_FUNC_ALLOCA])

  if test $ac_cv_func_alloca_works = no; then

    gl_PREREQ_ALLOCA

  fi

  # Define an additional variable used in the Makefile substitution.

  AC_EGREP_CPP([Need own alloca], [

#if defined __GNUC__ || defined _MSC_VER || !HAVE_ALLOCA_H

  Need own alloca

#endif

    ],

    ALLOCA_H=alloca.h,

    ALLOCA_H=)

  AC_SUBST([ALLOCA_H])

  AM_CONDITIONAL([GL_GENERATE_ALLOCA_H], [test -n "$ALLOCA_H"])

])

# Prerequisites of lib/alloca.c.

# STACK_DIRECTION is already handled by AC_FUNC_ALLOCA.

AC_DEFUN([gl_PREREQ_ALLOCA], [

  AC_CHECK_HEADERS_ONCE(stdlib.h string.h)

  :

])