Details are in the demonstration URL: http://forums.gentoo.org/viewtopic.php?t=270145 Reproducible: Always Steps to Reproduce:
did you select the right gcc-profile? (gcc-config -l)
You didn't added the output of emerge profile, but I think that this issue should be automatically fixed by the gcc ebuild. BTW you can probably fix it running: fix_libtool_files.sh 3.4.2
*** This bug has been marked as a duplicate of 73435 ***