60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
/* Copyright (C) 2012-2016 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "config.h"
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/* This is a merge of code recommended in the autoconf-2.61 documentation
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with that recommended in the autoconf-2.13 documentation, with added
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tweaks to heed C_ALLOCA. */
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#if defined HAVE_ALLOCA_H && !defined C_ALLOCA
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# include <alloca.h>
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#else
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# if defined __GNUC__ && !defined C_ALLOCA
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# if !defined alloca
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# define alloca __builtin_alloca
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# endif
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# else
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# if defined _AIX
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/* Indented so that pre-ansi C compilers will ignore it, rather than
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choke on it. Some versions of AIX require this to be the first
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thing seen by the compiler except for comments and preprocessor
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directives. */
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#pragma alloca
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# else
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# if defined _MSC_VER && !defined C_ALLOCA
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# include <malloc.h>
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# define alloca _alloca
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# else
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# if !defined alloca
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# if defined __STDC__ || defined __hpux
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# if defined HAVE_STDDEF_H
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# include <stddef.h>
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# if defined __cplusplus
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extern "C" void *alloca (size_t);
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# else
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extern void *alloca (size_t);
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# endif
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# else
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extern void *alloca ();
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# endif
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# else
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extern char *alloca ();
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# endif
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# endif
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# endif
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# endif
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# endif
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#endif
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