gcc-10 (10.2.0-19) unstable; urgency=medium
* Update to git
20201125 from the gcc-10 branch.
- Fix PR target/97730 (AArch64), PR target/97887 (x86), PR d/97889,
PR d/97843, PR d/97842, PR libstdc++/92546, PR libstdc++/97876,
PR libstdc++/95989, PR libstdc++/97869, PR c++/97918, PR debug/97060,
PR target/97534 (ARM), PR c++/96805, PR c++/96199.
* Configure again with --enable-checking=release.
* Enable again pgo and lto builds for 64bit architectures.
[dgit import unpatched gcc-10 10.2.0-19]