Telcon: 2022 06 08

Attendees

• Peter Scheibel (host)
• Kacper Kornet
• Richarda Butler
• Mark Krentel
• Massimiliano Culpo
• Phil Sakievich
• Tammy Dahlgren
• Wileam Phan
• Todd Gamblin

Agenda items

• Multiple build systems used by one package

  • https://github.com/spack/spack/pull/30411
  • https://github.com/spack/spack/pull/30738
    • Builder is a separate class from the package
    • See libfabric as an example
    • Todd: if you only use one build system, do you still have to define a separate Builder class?
      • Max: for now: yes
  • Both:
    • Define a buildsystem directive
      • Todd: is default always required (to handle conditions that don't partition the set of possible specs)?
      • Peter: Does uncrustify have to inherit CMakePackage as well as define it as part of the buildsystem directive?

• Public build cache (announced in ISC)

  • https://spack.io/spack-binary-packages/
  • spack mirror add https://binaries.spack.io/develop
  • You can browse https://cache.spack.io

• Documentation on binary cache generation: https://github.com/spack/spack/pull/30939

Possible Agenda items

• (Matt) if we build an environment, and one package fails, then module files are not generated
  • Want spack module refresh but only to generate module files that haven't been generated yet
• Updating compiler wrapper to strip -Werror (optionally): https://github.com/spack/spack/pull/30284
• (Wileam) Adding fpm as a build system
  • Issue on fpm repo: https://github.com/fortran-lang/fpm/issues/79
• Default action for concretization in environments: https://github.com/spack/spack/pull/29942#issuecomment-1097287194
• Continue from https://github.com/spack/spack/wiki/Telcon%3A-2022-04-06: warning() directive
• (Wileam) Can't bootstrap llvm@13 and @14 if gold is enabled (which is the default behavior) https://github.com/spack/spack/issues/29350
  • Pinpointed issue to external package (binutils carried by OS) based on comment
  • PR drafted: https://github.com/spack/spack/pull/30954
  • Can externals detection be expanded from executables only to arbitrary files (e.g. header or .a/.so library files)?
• How to reorganize the docs?
• Continue from https://github.com/spack/spack/wiki/Telcon%3A-2022-04-13: not in spec syntax