Nginx is using an old version (5b2604b) of mod_zip for compilation:

https://cgit.freebsd.org/ports/tree/www/nginx/Makefile.extmod#n211

The latest (39dc908) is here: https://github.com/evanmiller/mod_zip/commit/39dc9085d29445ed3238d215e94fbcbeef0131dc


Unfortunately, I do not know if that fixes the error below:


```
/wrkdirs/usr/ports/www/nginx/work/mod_zip-5b2604b/ngx_http_zip_headers.c:59:39: error: member reference type 'ngx_table_elt_t *' (aka 'struct ngx_table_elt_s *') is a pointer; did you mean to use '->'?
    ccp = r->headers_out.cache_control.elts;
          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
                                      ->
/wrkdirs/usr/ports/www/nginx/work/mod_zip-5b2604b/ngx_http_zip_headers.c:59:40: error: no member named 'elts' in 'struct ngx_table_elt_s'
    ccp = r->headers_out.cache_control.elts;
          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
/wrkdirs/usr/ports/www/nginx/work/mod_zip-5b2604b/ngx_http_zip_headers.c:62:28: warning: incompatible pointer types passing 'ngx_table_elt_t **' (aka 'struct ngx_table_elt_s **') to parameter of type 'ngx_array_t *' [-Wincompatible-pointer-types]
        if (ngx_array_init(&r->headers_out.cache_control, r->pool,
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/core/ngx_array.h:32:29: note: passing argument to parameter 'array' here
ngx_array_init(ngx_array_t *array, ngx_pool_t *pool, ngx_uint_t n, size_t size)
                            ^
/wrkdirs/usr/ports/www/nginx/work/mod_zip-5b2604b/ngx_http_zip_headers.c:69:30: warning: incompatible pointer types passing 'ngx_table_elt_t **' (aka 'struct ngx_table_elt_s **') to parameter of type 'ngx_array_t *' [-Wincompatible-pointer-types]
        ccp = ngx_array_push(&r->headers_out.cache_control);
                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/core/ngx_array.h:27:35: note: passing argument to parameter 'a' here
void *ngx_array_push(ngx_array_t *a);
                                  ^
/wrkdirs/usr/ports/www/nginx/work/mod_zip-5b2604b/ngx_http_zip_headers.c:85:53: error: member reference type 'ngx_table_elt_t *' (aka 'struct ngx_table_elt_s *') is a pointer; did you mean to use '->'?
        for (i = 1; i < r->headers_out.cache_control.nelts; i++) {
                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
                                                    ->
/wrkdirs/usr/ports/www/nginx/work/mod_zip-5b2604b/ngx_http_zip_headers.c:85:54: error: no member named 'nelts' in 'struct ngx_table_elt_s'
        for (i = 1; i < r->headers_out.cache_control.nelts; i++) {
                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
/wrkdirs/usr/ports/www/nginx/work/mod_zip-5b2604b/ngx_http_zip_headers.c:329:65: error: too few arguments to function call, expected 5, have 4
    return ngx_http_variable_unknown_header(v, var, part, prefix);
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~                     ^
src/http/ngx_http_variables.h:60:11: note: 'ngx_http_variable_unknown_header' declared here
ngx_int_t ngx_http_variable_unknown_header(ngx_http_request_t *r,
          ^
2 warnings and 5 errors generated.
```