gcc-6 (6.4.0-18) unstable; urgency=medium
* Update to SVN
20180615 (r261625) from the gcc-6-branch.
- Fix PR libstdc++/67554, PR libstdc++/85632, PR target/63177 (PPC),
PR tree-optimization/85712, PR tree-optimization/85712, PR ipa/85655,
PR target/85903 (x86), PR target/83687 (ARM), PR lto/85405,
PR lto/85405, PR fortran/85138, PR fortran/85996, PR fortran/86051,
PR fortran/85895, PR fortran/85780, PR fortran/85779, PR fortran/85543,
PR fortran/83149, PR fortran/83898, PR fortran/68846, PR fortran/70864,
PR fortran/85542, PR fortran/70870, PR fortran/85521, PR fortran/85687,
PR fortran/85507, PR fortran/81773, PR fortran/83606, PR fortran/85520,
PR lto/85248, PR bootstrap/86162.
* Fix PR middle-end/86139, taken from the gcc-8-branch. Closes: #901290.
* Fix build failure on hurd-i386. Closes: #898901.
[dgit import package gcc-6 6.4.0-18]