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-rw-r--r--posix/getopt.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/posix/getopt.c b/posix/getopt.c
index 4cbf3614cc..4d837c041a 100644
--- a/posix/getopt.c
+++ b/posix/getopt.c
@@ -198,15 +198,18 @@ static char *posixly_correct;
# define my_index strchr
#else
+# if HAVE_STRING_H
+# include <string.h>
+# else
+# include <strings.h>
+# endif
+
/* Avoid depending on library functions or files
whose names are inconsistent. */
#ifndef getenv
extern char *getenv ();
#endif
-#ifndef strncmp
-extern int strncmp ();
-#endif
static char *
my_index (str, chr)