X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=include%2Ferrno.h;h=0361b33ad348a2ab1d3422a2399cb2e3ccf0217b;hp=d9c2c9c73099a5161c3d6568f41a3f8e000ce752;hb=de80ea9f1c2821cbb4205533b86d5d17f9e8d376;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01

diff --git a/include/errno.h b/include/errno.h
index d9c2c9c7..0361b33a 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -5,11 +5,20 @@
 extern "C" {
 #endif
 
+#include <features.h>
+
 #include <bits/errno.h>
 
-extern int *__errno_location(void);
+#ifdef __GNUC__
+__attribute__((const))
+#endif
+int *__errno_location(void);
 #define errno (*__errno_location())
 
+#ifdef _GNU_SOURCE
+extern char *program_invocation_short_name, *program_invocation_name;
+#endif
+
 #ifdef __cplusplus
 }
 #endif