#define PROT_READ 1
#define PROT_WRITE 2
#define MAP_PRIVATE 1
-#define MAP_FAILED ((void*)-1)
#endif
#define mmap git_mmap
#endif /* NO_MMAP */
+#ifndef MAP_FAILED
+#define MAP_FAILED ((void *)-1)
+#endif
+
#ifdef NO_ST_BLOCKS_IN_STRUCT_STAT
#define on_disk_bytes(st) ((st).st_size)
#else