X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=include%2Ferrno.h;fp=include%2Ferrno.h;h=0361b33ad348a2ab1d3422a2399cb2e3ccf0217b;hp=9e1e3202b79dcd9d024a52d76e8b5ed99cafe6ad;hb=b4ea63856a6af3d1bcc2db12537785371ac2024c;hpb=5c5ac810c31a77dd17b95bb93e13487a3c1c1433

diff --git a/include/errno.h b/include/errno.h
index 9e1e3202..0361b33a 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -5,6 +5,8 @@
 extern "C" {
 #endif
 
+#include <features.h>
+
 #include <bits/errno.h>
 
 #ifdef __GNUC__
@@ -13,6 +15,10 @@ __attribute__((const))
 int *__errno_location(void);
 #define errno (*__errno_location())
 
+#ifdef _GNU_SOURCE
+extern char *program_invocation_short_name, *program_invocation_name;
+#endif
+
 #ifdef __cplusplus
 }
 #endif