X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=include%2Ferrno.h;h=0361b33ad348a2ab1d3422a2399cb2e3ccf0217b;hp=9d6803383cac9d6f244a35de6b1e05c3808c9f3d;hb=ae0c1de530bc3b27069008b8b247171d08dbe80b;hpb=cbf35978a9870fb1f5c73a852c986d4fcca6c2d4

diff --git a/include/errno.h b/include/errno.h
index 9d680338..0361b33a 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -5,14 +5,20 @@
 extern "C" {
 #endif
 
+#include <features.h>
+
 #include <bits/errno.h>
 
 #ifdef __GNUC__
 __attribute__((const))
 #endif
-extern int *__errno_location(void);
+int *__errno_location(void);
 #define errno (*__errno_location())
 
+#ifdef _GNU_SOURCE
+extern char *program_invocation_short_name, *program_invocation_name;
+#endif
+
 #ifdef __cplusplus
 }
 #endif