I wanted to enable the 3d party lua module for nginx, build nginx then fails to build because of the size mismatch.

The output when running "postmaster www/nginx":

Attempting to fetch https://github.com/chaoslawful/lua-nginx-module/tarball/v0.9.4/chaoslawful-lua-nginx-module-v0.9.4-0-g6169a19.tar.gz
fetch: https://github.com/chaoslawful/lua-nginx-module/tarball/v0.9.4/chaoslawful-lua-nginx-module-v0.9.4-0-g6169a19.tar.gz: size mismatch: expected 470252, actual 470182
=> Attempting to fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/distfiles/chaoslawful-lua-nginx-module-v0.9.4-0-g6169a19.tar.gz
fetch: ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/distfiles/chaoslawful-lua-nginx-module-v0.9.4-0-g6169a19.tar.gz: File unavailable (e.g., file not found, no access)

When accessing the github URL directly, it will download it as "openresty-lua-nginx-module-v0.9.4-0-g6169a19.tar.gz", not sure if that matters?

I've tried to change the expected size in the "distinfo" file, but then the build process complains about a checksum mismatch.
I changed the checksum in the "distinfo" file to match that of the downloaded file.
This is turn gave me:
"sed: /usr/ports/www/nginx/work/chaoslawful-lua-nginx-module-6169a19/src/ngx_http_lua_socket_tcp.c: No such file or directory"

The extracted tar.gz was extracted to "openresty-lua-nginx-module-v0.9.4-0-g6169a19" instead of "chaoslawful-lua-nginx-module-6169a19".

I renamed the extracted folder, issued another make, resulting in another fail.

Patching for nginx-1.6.0,2
===>  Applying FreeBSD patches for nginx-1.6.0,2
2 out of 3 hunks failed--saving rejects to conf/nginx.conf.rej
=> Patch patch-conf-nginx.conf failed to apply cleanly.
*** Error code 1

And that's where I gave up.

How-To-Repeat: make config -> enable "3rd party lua module" -> make -> fail