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35 lines
1.0 KiB
Plaintext
35 lines
1.0 KiB
Plaintext
# alloca.m4 serial 3
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dnl Copyright (C) 2002-2003 Free Software Foundation, Inc.
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dnl This file is free software, distributed under the terms of the GNU
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dnl General Public License. As a special exception to the GNU General
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dnl Public License, this file may be distributed as part of a program
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dnl that contains a configuration script generated by Autoconf, under
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dnl the same distribution terms as the rest of that program.
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AC_DEFUN([gl_FUNC_ALLOCA],
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[
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dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57.
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AC_REQUIRE([AC_PROG_CPP])
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AC_REQUIRE([AC_PROG_EGREP])
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AC_REQUIRE([AC_FUNC_ALLOCA])
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if test $ac_cv_func_alloca_works = no; then
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gl_PREREQ_ALLOCA
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fi
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# Define an additional variable used in the Makefile substitution.
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AC_EGREP_CPP([Need own alloca], [
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#if defined __GNUC__ || defined _MSC_VER || !HAVE_ALLOCA_H
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Need own alloca
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#endif
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],
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ALLOCA_H=alloca.h,
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ALLOCA_H=)
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AC_SUBST([ALLOCA_H])
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])
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# Prerequisites of lib/alloca.c.
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# STACK_DIRECTION is already handled by AC_FUNC_ALLOCA.
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AC_DEFUN([gl_PREREQ_ALLOCA], [:])
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