1 files changed, 4 insertions, 0 deletions
diff --git a/src/map.h b/src/map.h
index 96d879547..6ce6d3685 100644
--- a/src/map.h
+++ b/src/map.h
@@ -23,6 +23,10 @@
 #define GIT_MAP_TYPE	0xf
 #define GIT_MAP_FIXED	0x10
 
+#ifdef __amigaos4__
+#define MAP_FAILED 0
+#endif
+
 typedef struct { /* memory mapped buffer	*/
 	void *data; /* data bytes			*/
 	size_t len; /* data length			*/