Add MAP_FAILED per spec -- patch from Michael Shmulevich <michaels@jungo.com>

diff --git a/include/sys/mman.h b/include/sys/mman.h
index 8dc79d9..2997397 100644 (file)
--- a/include/sys/mman.h
+++ b/include/sys/mman.h
@@ -12,6 +12,8 @@
 #define MAP_FILE       0x00       /* The 'normal' way: mapped from file */
 #endif
 
+#define MAP_FAILED     ((__ptr_t) -1) /* Return value of `mmap' in case of an error.  */
+
 __BEGIN_DECLS
 
 extern __ptr_t mmap __P((__ptr_t __addr, size_t __len,