[MacPorts] #55981: enable ccache integration

[MacPorts]

#55981: enable ccache integration
-------------------------+-----------------
 Reporter:  seanchannel  |      Owner:
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:
 Keywords:               |       Port:
-------------------------+-----------------
 Suggestion to enable ccache (if installed) for macports that are locally
 built. I suggest enabling a port_select option to enable ccache as the
 symbolically linked GCC compiler. Please comment about what you think and
 thank you kindly!

--
Ticket URL: <https://trac.macports.org/ticket/55981>
MacPorts <https://www.macports.org/>
Ports system for macOS