Kill warnings.

diff --git a/ext/standard/string.c b/ext/standard/string.c
index 452fc4761ebdd343074d88c86f3b700410932f2b..28f33c519a5c6c8c867f04a7a8a88211c8a517e5 100644 (file)
--- a/ext/standard/string.c
+++ b/ext/standard/string.c
@@ -1315,9 +1315,9 @@ PHPAPI void php_stripcslashes(char *str, int *len)
                                case 'b': *target++='\b'; nlen--; break;
                                case 'f': *target++='\f'; nlen--; break;
                                case '\\': *target++='\\'; nlen--; break;
-                               case 'x': if (source+1<end && isxdigit(*(source+1))) {
+                               case 'x': if (source+1<end && isxdigit((int)(*(source+1)))) {
                                                numtmp[0] = *++source;
-                                               if (source+1<end && isxdigit(*(source+1))) {
+                                               if (source+1<end && isxdigit((int)(*(source+1)))) {
                                                        numtmp[1] = *++source;
                                                        numtmp[2] = '\0';
                                                        nlen-=3;