Nginx openresty

Just trying to uprgade nginx (centmin mod b21) with
NGINX_OPENRESTY=y
(to get HttpEchoModule for nginx).

I didn't find it in nginx_configure_openresty.inc and nginx_modules_openresty.inc, so I added it there manually.

---

But suddenly I've got many errors about other openresty modules:
"
adding module in ../ngx_cache_purge-1.4
./configure: error: no ../ngx_cache_purge-1.4/config was found
"
(fixed it cause it's 2.1 for now and next...)
"
adding module in ../
./configure: error: no ..//config was found
"
Error: 1, Nginx configure failed.

And no new nginx is istalled.

Is openresty unsupported now?
How can I add just one HttpEchoModule in a better way?
And maybe perl module?

 

Thanks, just installed HttpEchoModule successfully.
Btw founded small glitch:
$CUSTOMSERVERNAME works only if escaped properly, so i.e. "CUSTOMSERVERSTRING='Microsoft-IIS/8.0'" won't do the job.

Also let me propose (in nginx_configure.inc) the replacement of two variables like this:

sed -i 's/ngx_http_server_string\[\] = "Server: nginx" CRLF/ngx_http_server_string\[\] = "Server: $CUSTOMSERVERNAME" CRLF/' src/http/ngx_http_header_filter_module.c
sed -i 's/ngx_http_server_full_string\[\] = "Server: " NGINX_VER CRLF/ngx_http_server_full_string\[\] = "Server: $CUSTOMSERVERNAME" CRLF/' src/http/ngx_http_header_filter_module.c