musl/include/alloca.h
Rich Felker d71d0805f9 alloca cannot be a function. #define it to the gcc builtin if possible
gcc makes this mapping by default anyway, but it will be disabled by
-fno-builtin (and presumably by -std=c99 or similar). for the main
program the error will be reported by the linker, and the issue can
easily be fixed, but for dynamic-loaded so files, the error cannot be
detected until dlopen time, at which point it has become very obscure.
2012-04-09 15:06:58 -04:00

22 lines
242 B
C

#ifndef _ALLOCA_H
#define _ALLOCA_H
#ifdef __cplusplus
extern "C" {
#endif
#define __NEED_size_t
#include <bits/alltypes.h>
void *alloca(size_t);
#ifdef __GNUC__
#define alloca __builtin_alloca
#endif
#ifdef __cplusplus
}
#endif
#endif