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-rw-r--r--newlib/libc/include/stdio.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/newlib/libc/include/stdio.h b/newlib/libc/include/stdio.h
index f8d60766a..164d95bca 100644
--- a/newlib/libc/include/stdio.h
+++ b/newlib/libc/include/stdio.h
@@ -180,7 +180,7 @@ typedef _fpos64_t fpos64_t;
#if __POSIX_VISIBLE
char * ctermid (char *);
#endif
-#if __XSI_VISIBLE && __XSI_VISIBLE < 600
+#if __GNU_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 600)
char * cuserid (char *);
#endif
FILE * tmpfile (void);