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-rw-r--r--lib/dirname.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/dirname.c b/lib/dirname.c
index 82deea7b4a..5a92ce557f 100644
--- a/lib/dirname.c
+++ b/lib/dirname.c
@@ -20,9 +20,11 @@
#else
char *malloc ();
#endif
-#if defined(USG) || defined(STDC_HEADERS)
+#if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
#include <string.h>
+#ifndef rindex
#define rindex strrchr
+#endif
#else
#include <strings.h>
#endif