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Diffstat (limited to 'include/errno.h')
-rw-r--r--include/errno.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/errno.h b/include/errno.h
index 93f5f6ec..0361b33a 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -9,6 +9,9 @@ extern "C" {
#include <bits/errno.h>
+#ifdef __GNUC__
+__attribute__((const))
+#endif
int *__errno_location(void);
#define errno (*__errno_location())