package.bbclass: do variable fixups even when FILES was set
A number of settings (DESCRIPTION, SUMMARY, postinst, postrm,
and appends to RDEPENDS) were made only if FILES_foo was not
set for a given package. If you had a modified glibc packaging
setup that was defining FILES_glibc-gconv-somelocale, this would
prevent the automatic append of glibc-gconv as a dependency,
because extra_depends was ignored.
I think the assumption may have been that if FILES_foo was set,
DESCRIPTION_foo and SUMMARY_foo would also be set, but it seems
to me that the right answer is probably to set them if they aren't
already set, and leave them alone if they are.
Signed-off-by: Ross Burton <ross.burton@intel.com>
