gcc-9 9.3.0-4ubuntu1 source package in Ubuntu

Changelog

gcc-9 (9.3.0-4ubuntu1) focal; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.
    - Disable the LTO build on arm64, armhf for now, takes 24+ hours ...

gcc-9 (9.3.0-4) unstable; urgency=medium

  * Update to git 20200320 from the gcc-9 branch.
    - Fix PR tree-optimization/94163, PR rtl-optimization/94119,
      PR target/87560 (PPC), PR target/91913 (ARM), PR target/93800 (PPC),
      PR c++/92909, PR c++/92068, PR c++/93248, PR libstdc++/94063,
      PR libstdc++/93244, PR driver/92757, PR target/93709, PR middle-end/94189,
      PR debug/94167, PR middle-end/93566, PR target/94121 (AArch64),
      PR tree-optimization/94130, PR target/94121 (AArch64),
      PR middle-end/94111, PR tree-optimization/94114, PR middle-end/93399,
      PR debug/93888, PR tree-optimization/94001, PR libstdc++/94199.
  * Build using GCC 9 again.
  * Move limits.h and syslimits.h into <gcc-lib-dir>/include, and remove
    <gcc-lib-dir>/include-fixed.
  * Relax the dependency on libc6 again.

 -- Matthias Klose <email address hidden>  Fri, 20 Mar 2020 11:08:19 +0100