This is the default example configuration of macros.nginx-scldevel provided by nginx. This config file was generated by nginx running on RHEL 7.
It is located under: /etc/rpm/macros.nginx-scldevel
%scl_nginx rh-nginx118
%scl_prefix_nginx rh-nginx118-
Download the raw file with wget or curl
wget -O macros.nginx-scldevel.example http://exampleconfig.com/static/raw/nginx/rhel7/etc/rpm/macros.nginx-scldevel
curl http://exampleconfig.com/static/raw/nginx/rhel7/etc/rpm/macros.nginx-scldevel > macros.nginx-scldevel.example
Other config files you might find useful