sys-kernel/linux-headers-2.6.24 break compilation of many packages. To mention a few, these are: e2fsprogs transcode proftpd Please mask or fix. Typical errors are duplicate definitions. Reproducible: Always
Added a blocker on related bug.
There's nothing to fix here about linux-headers, file separate bugs for affected ebuilds with errors, emerge --info etc... On that note e2fsprogs and transcode compiles perfectly fine here, not using proftpd.