2.4.3 is out; seems to work fine with the latest ebuild (renamed). Correct compilation on x86 tested; also tested upsd, upsmon, upsdrv, CGIs. Please bump ~arch to 2.4.3. Reproducible: Always Steps to Reproduce:
This was already in the tree when you filed the bug. *** This bug has been marked as a duplicate of bug 313883 ***