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| author | Brian Gaeke <gaeke@uiuc.edu> | 2003-06-16 21:54:01 +0000 |
|---|---|---|
| committer | Brian Gaeke <gaeke@uiuc.edu> | 2003-06-16 21:54:01 +0000 |
| commit | ad95d9ef50cbd789025dbff8a1e018650cbcdc7f (patch) | |
| tree | b65b2fdf28df6eacbe0e7d54e3a0a81237f3e24b /include | |
| parent | 5c91898e57336d8457bddce63e4d7ba7fedc936e (diff) | |
| download | llvm-ad95d9ef50cbd789025dbff8a1e018650cbcdc7f.tar.gz llvm-ad95d9ef50cbd789025dbff8a1e018650cbcdc7f.tar.bz2 llvm-ad95d9ef50cbd789025dbff8a1e018650cbcdc7f.tar.xz | |
Isolate machine-dependent use of <alloca.h> in "Support/Alloca.h",
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
Diffstat (limited to 'include')
| -rw-r--r-- | include/Support/Alloca.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/Support/Alloca.h b/include/Support/Alloca.h new file mode 100644 index 0000000000..3c163ed0d6 --- /dev/null +++ b/include/Support/Alloca.h @@ -0,0 +1,30 @@ +//===-- include/Support/Alloca.h - Support for alloca header -----*- C++ -*--=// +// +// Some platforms do not have alloca.h; others do. You can include this +// file instead of <alloca.h> and it will include <alloca.h> on the platforms +// that require you to do so to use alloca(). +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_SUPPORT_ALLOCA_H +#define LLVM_SUPPORT_ALLOCA_H + +// TODO: Determine HAVE_ALLOCA_H based on autoconf results. +// The following method is too brittle. +#if defined(HAVE_ALLOCA_H) +#undef HAVE_ALLOCA_H +#endif + +#if defined(__linux__) +#define HAVE_ALLOCA_H 1 +#elif defined(__sparc__) +#define HAVE_ALLOCA_H 1 +#elif defined(__FreeBSD__) +// not defined here +#endif + +#if HAVE_ALLOCA_H +#include <alloca.h> +#endif + +#endif /* LLVM_SUPPORT_ALLOCA_H */ |