Apparently the boost-1.30.0-r1 ebuild causes these symlinks to be installed in / rather than /usr/lib: # ls -l /libboost_* lrwxrwxrwx 1 root root 22 Mar 6 07:49 /libboost_date_time-gcc-d.a -> libboost_date_time-d.a lrwxrwxrwx 1 root root 23 Mar 6 07:49 /libboost_date_time-gcc-d.so -> libboost_date_time-d.so lrwxrwxrwx 1 root root 25 Mar 6 07:49 /libboost_date_time-gcc-mt-d.a -> libboost_date_time-mt-d.a lrwxrwxrwx 1 root root 26 Mar 6 07:49 /libboost_date_time-gcc-mt-d.so -> libboost_date_time-mt-d.so lrwxrwxrwx 1 root root 23 Mar 6 07:49 /libboost_date_time-gcc-mt.a -> libboost_date_time-mt.a lrwxrwxrwx 1 root root 24 Mar 6 07:49 /libboost_date_time-gcc-mt.so -> libboost_date_time-mt.so lrwxrwxrwx 1 root root 20 Mar 6 07:49 /libboost_date_time-gcc.a -> libboost_date_time.a lrwxrwxrwx 1 root root 21 Mar 6 07:49 /libboost_date_time-gcc.so -> libboost_date_time.so lrwxrwxrwx 1 root root 24 Mar 6 07:49 /libboost_date_time.a-gcc-d.a -> libboost_date_time.a-d.a [etc. etc.] This is on an AMD64 if that matters.
It was a problem with the ebuild, sync and re-emerge it. It should be fine now.
Yup, that fixed it.
