RM: gcc-5: no longer used

[Steve Langasek]

$ liblist='lib(x32|32|64|sf)?(gomp1|quadmath0|atomic1|itm1|objc4|stdc\+\+6|gfortran3|tsan0|gccjit0|ubsan0|cilkrts5|lsan0|cc1-0)'
$ rmadison -s bionic -S gcc-5 | grep -E "\b$liblist[[:space:]]"
$ reverse-depends src:gcc-5 | grep -vE "\b$liblist\)|-linux-gnu"
Reverse-Recommends
==================

Reverse-Depends
===============
* gcc-5-doc (for gcc-5-base)
* minica [s390x] (for libgo7)
* nvidia-cuda-toolkit [amd64 ppc64el] (for gcc-5)
* nvidia-cuda-toolkit [amd64 ppc64el] (for g++-5)
* pluginhook [arm64 ppc64el s390x] (for libgo7)

Packages without architectures listed are reverse-dependencies in: amd64, arm64, armhf, i386, ppc64el, s390x
$

gcc-5-doc is a misidentification. nvidia-cuda-toolkit are alternatives. minica and pluginhook needed no-change rebuilds to use golang instead of gccgo; I have uploaded these now. So once they migrate, gcc-5 will have no reverse-dependencies in the archive except for gcc-5-cross; so we should drop both of these packages.

[Steve Langasek (vorlon)]

gcc-5-cross removed 2019-01-07:

uninstallable following cruft removal of gcc-6-cross, and unused.

[Steve Langasek (vorlon)]

gcc-5-cross-ports removed 2019-01-29:

(From Debian) RoQA; old gcc version; Debian bug #920162

[Steve Langasek (vorlon)]

mono needs a merge of a new upstream version from Debian to drop the s390x-specific build-dependency on gcc-5.

[Steve Langasek (vorlon)]

I tried merging the new upstream version from unstable, but mono (still? again?) FTBFS on s390x, with or without the Ubuntu delta to build with -O0. https://launchpad.net/ubuntu/+source/mono/5.18.0.240+dfsg-2ubuntu1/+build/16646009

[Steve Langasek (vorlon)]

Removing packages:
 gcc-5 5.5.0-12ubuntu8 in disco
  cpp-5 5.5.0-12ubuntu8 in disco amd64
  cpp-5 5.5.0-12ubuntu8 in disco arm64
  cpp-5 5.5.0-12ubuntu8 in disco armhf
  cpp-5 5.5.0-12ubuntu8 in disco i386
  cpp-5 5.5.0-12ubuntu8 in disco ppc64el
  cpp-5 5.5.0-12ubuntu8 in disco s390x
  cpp-5-dbgsym 5.5.0-12ubuntu8 in disco amd64
  cpp-5-dbgsym 5.5.0-12ubuntu8 in disco arm64
  cpp-5-dbgsym 5.5.0-12ubuntu8 in disco armhf
  cpp-5-dbgsym 5.5.0-12ubuntu8 in disco i386
  cpp-5-dbgsym 5.5.0-12ubuntu8 in disco ppc64el
  cpp-5-dbgsym 5.5.0-12ubuntu8 in disco s390x
  cpp-5-doc 5.5.0-12ubuntu8 in disco amd64
  cpp-5-doc 5.5.0-12ubuntu8 in disco arm64
  cpp-5-doc 5.5.0-12ubuntu8 in disco armhf
  cpp-5-doc 5.5.0-12ubuntu8 in disco i386
  cpp-5-doc 5.5.0-12ubuntu8 in disco ppc64el
  cpp-5-doc 5.5.0-12ubuntu8 in disco s390x
  g++-5 5.5.0-12ubuntu8 in disco amd64
  g++-5 5.5.0-12ubuntu8 in disco arm64
  g++-5 5.5.0-12ubuntu8 in disco armhf
  g++-5 5.5.0-12ubuntu8 in disco i386
  g++-5 5.5.0-12ubuntu8 in disco ppc64el
  g++-5 5.5.0-12ubuntu8 in disco s390x
  g++-5-dbgsym 5.5.0-12ubuntu8 in disco amd64
  g++-5-dbgsym 5.5.0-12ubuntu8 in disco arm64
  g++-5-dbgsym 5.5.0-12ubuntu8 in disco armhf
  g++-5-dbgsym 5.5.0-12ubuntu8 in disco i386
  g++-5-dbgsym 5.5.0-12ubuntu8 in disco ppc64el
  g++-5-dbgsym 5.5.0-12ubuntu8 in disco s390x
  g++-5-multilib 5.5.0-12ubuntu8 in disco amd64
  g++-5-multilib 5.5.0-12ubuntu8 in disco armhf
  g++-5-multilib 5.5.0-12ubuntu8 in disco i386
  g++-5-multilib 5.5.0-12ubuntu8 in disco s390x
  gcc-5 5.5.0-12ubuntu8 in disco amd64
  gcc-5 5.5.0-12ubuntu8 in disco arm64
  gcc-5 5.5.0-12ubuntu8 in disco armhf
  gcc-5 5.5.0-12ubuntu8 in disco i386
  gcc-5 5.5.0-12ubuntu8 in disco ppc64el
  gcc-5 5.5.0-12ubuntu8 in disco s390x
  gcc-5-base 5.5.0-12ubuntu8 in disco amd64
  gcc-5-base 5.5.0-12ubuntu8 in disco arm64
  gcc-5-base 5.5.0-12ubuntu8 in disco armhf
  gcc-5-base 5.5.0-12ubuntu8 in disco i386
  gcc-5-base 5.5.0-12ubuntu8 in disco ppc64el
  gcc-5-base 5.5.0-12ubuntu8 in disco s390x
  gcc-5-dbgsym 5.5.0-12ubuntu8 in disco amd64
  gcc-5-dbgsym 5.5.0-12ubuntu8 in disco arm64
  gcc-5-dbgsym 5.5.0-12ubuntu8 in disco armhf
  gcc-5-dbgsym 5.5.0-12ubuntu8 in disco i386
  gcc-5-dbgsym 5.5.0-12ubuntu8 in disco ppc64el
  gcc-5-dbgsym 5.5.0-12ubuntu8 in disco s390x
  gcc-5-doc 5.5.0-12ubuntu8 in disco amd64
  gcc-5-doc 5.5.0-12ubuntu8 in disco arm64
  gcc-5-doc 5.5.0-12ubuntu8 in disco armhf
  gcc-5-doc 5.5.0-12ubuntu8 in disco i386
  gcc-5-doc 5.5.0-12ubuntu8 in disco ppc64el
  gcc-5-doc 5.5.0-12ubuntu8 in disco s390x
  gcc-5-hppa64-linux-gnu 5.5.0-12ubuntu8 in disco amd64
  gcc-5-hppa64-linux-gnu 5.5.0-12ubuntu8 in disco i386
  gcc-5-hppa64-linux-gnu-dbgsym 5.5.0-12ubuntu8 in disco amd64
  gcc-5-hppa64-linux-gnu-dbgsym 5.5.0-12ubuntu8 in disco i386
  gcc-5-locales 5.5.0-12ubuntu8 in disco amd64
  gcc-5-locales 5.5.0-12ubuntu8 in disco arm64
  gcc-5-locales 5.5.0-12ubuntu8 in disco armhf
  gcc-5-locales 5.5.0-12ubuntu8 in disco i386
  gcc-5-locales 5.5.0-12ubuntu8 in disco ppc64el
  gcc-5-locales 5.5.0-12ubuntu8 in disco s390x
  gcc-5-multilib 5.5.0-12ubuntu8 in disco amd64
 ...