ngx_http_gzip_add_variables  109 http/modules/ngx_http_gzip_filter_module.c static ngx_int_t ngx_http_gzip_add_variables(ngx_conf_t *cf);
ngx_http_gzip_add_variables  200 http/modules/ngx_http_gzip_filter_module.c     ngx_http_gzip_add_variables,           /* preconfiguration */