pull string.h for needed prototypes, get rid of unused variables

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devel/asp2php/patches/patch-src_gtkasp2php_c

@@ -0,0 +1,18 @@
+$OpenBSD: patch-src_gtkasp2php_c,v 1.1 2003/01/02 06:40:55 pvalchev Exp $
+--- src/gtkasp2php.c.orig	Mon Jul 29 02:33:13 2002
++++ src/gtkasp2php.c	Sun Dec 22 13:24:15 2002
+@@ -1,5 +1,6 @@
+ #include <stdio.h>
+ #include <stdlib.h>
++#include <string.h>
+ #include <dirent.h>
+ #include <unistd.h>
+ #include <gtk/gtk.h>
+@@ -66,7 +67,6 @@ char targetdir[2048];
+ char command[2048];
+ char arguments[2048];
+ DIR *dp_asp;
+-DIR *dp_php;
+ int t;
+ 
+   convert=1;