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Diffstat (limited to 'libc/sysdeps/linux/common/bits/errno.h')
-rw-r--r--libc/sysdeps/linux/common/bits/errno.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/bits/errno.h b/libc/sysdeps/linux/common/bits/errno.h
index bd8b1d4b8..679600e5e 100644
--- a/libc/sysdeps/linux/common/bits/errno.h
+++ b/libc/sysdeps/linux/common/bits/errno.h
@@ -38,6 +38,9 @@ extern int errno;
extern int *__errno_location (void) __THROW __attribute__ ((__const__));
# if defined _LIBC
+#ifdef IS_IN_libc
+libc_hidden_proto(__errno_location)
+#endif
/* We wouldn't need a special macro anymore but it is history. */
# define __set_errno(val) ((errno) = (val))
# endif /* _LIBC */