http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52241
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-16 13:48:59 UTC --- libtool apparently creates convenience libraries only with -fPIC stuff in it, instead of having two sets of objects for each source, one -fPIC and one non-fPIC. Not sure if it is possible to override that behavior somehow. So, when in 4.6 we had just libsupc++_convenience.la linked into libstdc++.la, only the libsupc++ objects were -fPIC in libstdc++.a and the rest, not coming from convenience library, was -fno-pic. Now that everything else comes also from convenience libraries, everything is -fPIC. Not sure what is desirable...