[Bug c++/121963] Make it easier to change the location of gcm.cache dir and document it

[nshead at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121963

Nathaniel Shead <nshead at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement
            Summary|Make it possible to change  |Make it easier to change
                   |the location of gcm.cache   |the location of gcm.cache
                   |dir                         |dir and document it