After upgrading to nginx 1.10.0 on my FreeBSD machines, I found that nginx would no longer start.
$ sudo /usr/local/etc/rc.d/nginx restart Performing sanity check on nginx configuration: nginx: [emerg] unknown directive "geoip_country" in /usr/local/etc/nginx/nginx.conf:42 nginx: configuration file /usr/local/etc/nginx/nginx.conf test failed
Looking at the commit logs led me to revision 414084, which notes that the GeoIP module and several other modules are now built as dynamic modules.
So I looked for where the GeoIP module was installed.
$ pkg info -l nginx | fgrep geoip /usr/local/libexec/nginx/ngx_http_geoip_module.so
And updated the configuration to load the GeoIP module dynamically.