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-rw-r--r--lib/getopt.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/getopt.h b/lib/getopt.h
index c4519b7f..68a9acfb 100644
--- a/lib/getopt.h
+++ b/lib/getopt.h
@@ -99,12 +99,12 @@ struct option
#define optional_argument 2
#if defined (__STDC__) && __STDC__
-#ifdef __GNU_LIBRARY__
+#if defined (__GNU_LIBRARY__) || defined (__EXTENSIONS__)
/* Many other libraries have conflicting prototypes for getopt, with
differences in the consts, in stdlib.h. To avoid compilation
errors, only prototype getopt for the GNU C library. */
extern int getopt (int argc, char *const *argv, const char *shortopts);
-#else /* not __GNU_LIBRARY__ */
+#else /* not __GNU_LIBRARY__ or __EXTENSIONS__ */
extern int getopt (void);
#endif /* __GNU_LIBRARY__ */
extern int getopt_long (int argc, char *const *argv, const char *shortopts,