This is due to config/init/hints/darwin.pm, which hardcodes "/usr/
local/..." to the path.
A fix which works only in a non-install variety of parrot would be:
=== config/init/hints/darwin.pm
==
--- config/init/hints/darwin.pm (revi
# New Ticket Created by Will Coleda
# Please include the string: [perl #43070]
# in the subject line of all future correspondence about this issue.
# http://rt.perl.org/rt3/Ticket/Display.html?id=43070 >
Using a config of:
CC="ccache gcc-4.0"
CX="ccache g++-4.0"
perl Configure.pl --cc="$CC"