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//===-- 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 SUPPORT_ALLOCA_H
#define 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 /* SUPPORT_ALLOCA_H */
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