--- src/main/util.c	2011-09-27 07:06:43 +0000
+++ src/main/util.c	2011-09-27 07:09:07 +0000
@@ -25,6 +25,7 @@ 
 
 #include <Defn.h>
 #include <ctype.h>		/* for isspace */
+#include <pcre.h>
 
 #undef COMPILING_R
 
@@ -1260,7 +1261,7 @@ 
 
 Rboolean utf8Valid(const char *str)
 {
-    return  (_pcre_valid_utf8(str, strlen(str)) < 0);
+    return  (_pcre_valid_utf8(str, strlen(str))==PCRE_UTF8_ERR0);
 }