nginx 0.5.13 *) Feature: the COPY and MOVE methods. *) Bugfix: the ngx_http_realip_module set garbage for requests passed via keep-alive connection. *) Bugfix: nginx did not work on big-endian 64-bit Linux. Thanks to Andrei Nigmatulin. *) Bugfix: now when IMAP/POP3 proxy receives too long command it closes the connection right away, but not after timeout. *) Bugfix: if the "epoll" method was used and a client closed a connection prematurely, then nginx closed the connection after a send timeout only. *) Bugfix: nginx could not be built on platforms different from i386, amd64, sparc and ppc; bug appeared in 0.5.8.

--- a/src/http/modules/ngx_http_headers_filter_module.c
+++ b/src/http/modules/ngx_http_headers_filter_module.c
@@ -411,7 +411,7 @@ ngx_http_headers_add(ngx_conf_t *cf, ngx
 
     value = cf->args->elts;
 
-    if (ngx_strcasecmp(value[1].data, "cache-control") == 0) {
+    if (ngx_strcasecmp(value[1].data, (u_char *) "cache-control") == 0) {
         hcf->cache_control = value[2];
         return NGX_CONF_OK;
     }