Commit 8bec63bf92 attempted to switch to
using -fdebug-prefix-map to set file locations in debug packages. It
make a few mistakes...
1) Adding debug C{,XX}FLAGS only worked if DBGSRCDIR was defined in
makepkg.conf. Fix this by falling back to the default value.
2) Using -fdebug-prefix-map altered a lot of assumptions about file
locations when copying source files into debug packages. This resulted
in lots of messages of failed cp in packaging output.
Signed-off-by: Allan McRae <allan@archlinux.org>
653d2dc86d