1 files changed, 0 insertions, 1 deletions
diff --git a/ruby.c b/ruby.c
index 1b7c03e9c5..b3831d3ad0 100644
--- a/ruby.c
+++ b/ruby.c
@@ -57,7 +57,6 @@ int tainting = FALSE;
 static int sflag = FALSE;
 
 char *inplace = FALSE;
-char *strdup();
 
 extern char *sourcefile;
 extern int yydebug;