gcc-6 (6.4.0-7) unstable; urgency=medium
* Update to SVN
20170920 (r253004) from the gcc-6-branch.
- Fix PR c++/81314, PR c/81687, PR c/45784, PR libquadmath/65757,
PR libstdc++/60936, PR target/82112 (PPC), PR c++/81355 (x86),
PR tree-optimization/81977, PR tree-optimization/82084,
PR middle-end/81505, PR middle-end/81768, PR c/81687,
PR middle-end/81766, PR target/81621 (S390), PR middle-end/81052,
PR middle-end/79499, PR target/81225 (x86), PR tree-opt/79987,
PR sanitizer/81224.
* Fix fortran cross compiler build with debhelper 10.9. See: #876246.
* Bump binutils dependency to 2.29.1 for sid/buster.
[dgit import package gcc-6 6.4.0-7]