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ad95d9ef50
so that we can easily change its use to be conditional on the result of an autoconf test later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6723 91177308-0d34-0410-b5e6-96231b3b80d8
31 lines
815 B
C++
31 lines
815 B
C++
//===-- include/Support/Alloca.h - Support for alloca header -----*- C++ -*--=//
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//
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// Some platforms do not have alloca.h; others do. You can include this
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// file instead of <alloca.h> and it will include <alloca.h> on the platforms
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// that require you to do so to use alloca().
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_ALLOCA_H
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#define LLVM_SUPPORT_ALLOCA_H
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// TODO: Determine HAVE_ALLOCA_H based on autoconf results.
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// The following method is too brittle.
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#if defined(HAVE_ALLOCA_H)
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#undef HAVE_ALLOCA_H
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#endif
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#if defined(__linux__)
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#define HAVE_ALLOCA_H 1
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#elif defined(__sparc__)
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#define HAVE_ALLOCA_H 1
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#elif defined(__FreeBSD__)
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// not defined here
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#endif
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#if HAVE_ALLOCA_H
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#include <alloca.h>
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#endif
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#endif /* LLVM_SUPPORT_ALLOCA_H */
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