c-opts.c: Include plugin.h.

c-opts.c: Include plugin.h.

[gcc/c-family]
2013-11-19  Basile Starynkevitch  <basile@starynkevitch.net>

        * c-opts.c: Include plugin.h.
        (cb_file_change): Invoke plugin event PLUGIN_INCLUDE_FILE.

[gcc/]
2013-11-19  Basile Starynkevitch  <basile@starynkevitch.net>

        * plugin.def (PLUGIN_INCLUDE_FILE): New event, invoked in
        cb_file_change.

From-SVN: r205038