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win32: malloc.h: use alloca instead of (missing) _alloca

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_alloca is not part of msvcrt (and therefore not found if used), and tcc has
an internal implementation for alloca for x86[_64] since d778bde7 - initally
as _alloca and later changed to alloca. Use it instead.
This commit is contained in:
Avi Halachmi (:avih) 2016-06-19 09:48:14 +03:00
parent b67951bed4
commit ab8422c8e7
1 changed files with 7 additions and 1 deletions
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8
win32/include/malloc.h
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@ -82,7 +82,13 @@ extern "C" {
#undef _alloca
#define _alloca(x) __builtin_alloca((x))
#else
void *__cdecl _alloca(size_t _Size);
/* tcc implements alloca internally and exposes it (since commit d778bde7).
/* alloca is declared at include/stddef.h (which is distributed with tcc).
*/
#ifdef _alloca
#undef _alloca
#endif
#define _alloca(x) alloca((x))
#endif
_CRTIMP size_t __cdecl _get_sbh_threshold(void);
_CRTIMP int __cdecl _set_sbh_threshold(size_t _NewValue);