process makes that easily possible.
+ Use ${EXTRACTOR} to manually unpack the gem file.
+ Change the do-gem-install target to initially build and install the
gem into a buildroot, ${WRKDIR}/.inst, then to copy the files from
the buildroot into the final install location, ${DESTDIR}${PREFIX}.
XXX We still need to find some way to remove the intermediate build
XXX files, e.g. *.o object files, from the buildroot before copying
XXX to the final location.
f8cb5229fc