[Bug bootstrap/55807] Support musl libc

[lu_zero at gentoo dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55807

--- Comment #2 from lu_zero at gentoo dot org 2012-12-25 20:14:57 UTC ---
Created attachment 29045
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29045
C++ missing bits