mingw-w64-crt/math/abs64.c - mingw-w64 - Git at Google

 #include <intrin.h>
 #include <stdlib.h>

 __MINGW_EXTENSION __int64 __cdecl _abs64(__int64 x) {
     return llabs(x);
 }
	#include <intrin.h>
	#include <stdlib.h>

	__MINGW_EXTENSION __int64 __cdecl _abs64(__int64 x) {
	return llabs(x);
	}