[Bug bootstrap/77661] --enable-maintainer-mode causes in-tree-build of MPC to fail

[burnus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77661

--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> ---
Patch: https://gcc.gnu.org/ml/gcc-patches/2016-09/msg01294.html