Except for the libgcc/config/rs6000/ibm-ldouble.c changes, the appropriate way to get these changes into libgcc would be a bulk update of all the files copied from glibc, rather than selectively merging particular changes - which would be done at another development stage rather than when in regressions-only mode, given that this is not a user-visible bug at all but purely an internal cleanup.
-- Joseph S. Myers jos...@codesourcery.com