Core updates status

[Steve George]

Hi,

We're trying to stabilise and merge core-updates, help definitely wanted!

https://debbugs.gnu.org/cgi/bugreport.cgi?bug=70456

So far the main blockers are:

- guile-rsvg failing
  - https://debbugs.gnu.org/cgi/bugreport.cgi?bug=70537
  - I'm able to build librsvg@2.56.4 but not guile-rsvg
  - guile-rsvg@2.18.1 / guile2.2-rsvg
  - guile-rsvg builds on master - connected?

This blocks further progress 

What builds so far: 

  - gcc-toolchain and all the dependents from commencement.scm
  ./pre-inst-env guix build --no-substitutes gcc-toolchain

  - bunch of the basic - but blocked on guile-rsvg
  ./pre-inst-env guix system --no-substitutes vm 
gnu/system/examples/bare-bones.tmpl

Other potential issues:

- 45885  libpng non-deterministic build
  https://debbugs.gnu.org/cgi/bugreport.cgi?bug=45885
  won't build due to block on pango - 

- 58719 [core-updates]: build failure for file on i686
  https://ci.guix.gnu.org/build/4057809/details

- 40316 [core-updates] Nss not reproducible
  https://debbugs.gnu.org/cgi/bugreport.cgi?bug=40316
  confirmed 

- 68270  libstdc++-boot0.x86_64 is broken
  - https://debbugs.gnu.org/cgi/bugreport.cgi?bug=68270

- 39415  [core-updates] Removing SSL patches in CMake and Kodi - help wanted
    - check if they are there and remove?
    - https://debbugs.gnu.org/cgi/bugreport.cgi?bug=39415


This is building from  4a0e6e3895cefe7c2999c22e56fe9b3dbca97f55 which includes 
the last merge from master.

Thanks,

Steve