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23a1cf3e08
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20243 91177308-0d34-0410-b5e6-96231b3b80d8
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/*
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* The LLVM Compiler Infrastructure
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*
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* This file was developed by the LLVM research group and is distributed under
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* the University of Illinois Open Source License. See LICENSE.TXT for details.
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*
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******************************************************************************
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*
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* Description:
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* This header file includes the infamous alloc.h header file if the
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* autoconf system has found it. It hides all of the autoconf details
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* from the rest of the application source code.
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*/
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#ifndef _CONFIG_ALLOC_H
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#define _CONFIG_ALLOC_H
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#include "llvm/Config/config.h"
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/*
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* This is a modified version of that suggested by the Autoconf manual.
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* 1) The #pragma is indented so that pre-ANSI C compilers ignore it.
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* 2) If alloca.h cannot be found, then try stdlib.h. Some platforms
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* (notably FreeBSD) defined alloca() there.
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*/
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#ifdef _MSC_VER
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#include <malloc.h>
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#define alloca _alloca
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#elif defined(HAVE_ALLOCA_H)
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#include <alloca.h>
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#elif defined(__MINGW32__) && defined(HAVE_MALLOC_H)
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#include <malloc.h>
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#elif !defined(__GNUC__)
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# ifdef _AIX
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# pragma alloca
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# else
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# ifndef alloca
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char * alloca ();
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# endif
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# endif
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#else
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# ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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# else
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# error "The function alloca() is required but not found!"
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# endif
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#endif
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#endif
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