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• Launchpad entry: none yet

• Packages affected: gcc*, gcj*, glibc, binutils

Summary

Define features and versions to use in feisty, demoting/removing old compiler versions; use the upstream versions which are available now.

Implementation

• glibc: 2.5, as available in feisty.
• binutils-2.17.0.50.6, as available in feisty.
• gcc: 4.1, as available in feisty; upgrade to the 4.1.2 release or the 4.1.2 branch until UVF.
  • C++: backport the C++ visibility changes to 4.1; needs changes in packages to use this feature (i.e. KDE).
• gcj: Decide before UVF about gcj-4.2 or gcj-4.1, depending on the upstream 4.2 release date. If 4.2 is released/in prerelease state, the java packages and libgcc[14] will be built from the gcj-4.2 sources.
• Change the long double data type on sparc and powerpc from 64bit to 128bit.

  • Requires rebuild of packages exposing "long double" in the API of the package (Ldbl128Main, Ldbl128Universe)

  • Requires rebuild of packages using the changed ABI.
• Demote gcc-3.4 from main; requires dropping g77 from main, and using gfortran to satisfy build-dependencies in main (fftw3, lapack3, python-numarray, python-numeric, refblas3).

BoF agenda and discussion

• Define versions to use in feisty

• Select proposals suggested at https://wiki.ubuntu.com/EdgyPlusOneToolchainRoadmap

• Demoting/removing old compiler versions
  • gcc-4.0
  • gcc-3.4 ?
• long-double-128 change on powerpc and sparc

  • Ldbl128Main

  • Ldbl128Universe

• Demote g77 to universe, build stuff using gfortran in main?

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