message: Only perform semanage sequence once on CentOS
  Should be quite a big speedup, semanage takes a significant (20+ minutes)
  amount of time in the release build process.
diff: @@ -408,7 +408,7 @@ apache_debug_stop : stop
  # used to test connection-refused handling via modpagespeed.com. We don't
  # actually create a VirtualHost on 1023.
  enable_ports_and_file_access :
  - if [ -x /usr/sbin/semanage ]; then \
  + if [[ -x /usr/sbin/semanage && ! -f /tmp/semanage.set ]]; then \
  set -x; \
  for port in 1023 8081 8082 $(APACHE_SECONDARY_PORT) \
  $(APACHE_TERTIARY_PORT) $(CONTROLLER_PORT); do \
  @@ -423,6 +423,7 @@ enable_ports_and_file_access :
  sudo chcon -R --reference=$(APACHE_DOC_ROOT) $$dir || true; \
  done; \
  /usr/sbin/setsebool httpd_can_network_connect on; \
  + touch /tmp/semanage.set; \
  fi
  # Hooks for tests we can only run in development due to needing extensive
  