--- ext/xmlrpc/libxmlrpc/encodings.c.orig	Wed Sep 26 17:44:16 2007
+++ ext/xmlrpc/libxmlrpc/encodings.c	Wed Jan  5 10:02:06 2011
@@ -78,7 +78,7 @@ static char* convert(const char* src, int src_len, int
          if(outbuf) {
             out_ptr = (char*)outbuf;
             while(inlenleft) {
-               st = iconv(ic, (char**)&src, &inlenleft, &out_ptr, &outlenleft);
+               st = iconv(ic, (const char**)&src, &inlenleft, &out_ptr, &outlenleft);
                if(st == -1) {
                   if(errno == E2BIG) {
                      int diff = out_ptr - outbuf;
