FeistyToolchainRoadmap

Differences between revisions 3 and 4
⇤ ← Revision 3 as of 2006-11-01 14:46:50 →
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Editor: dslb-088-073-093-229
Comment: g77/gfortran changes
← Revision 4 as of 2006-11-06 19:28:21 → ⇥
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Comment: add implementation
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Define features and versions to use in feisty, demoting/removing old compiler versions, ...

== Rationale ==

== Use cases ==

== Scope ==

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

=== Data preservation and migration ===

== Unresolved issues ==		  * 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).

Please check the status of this specification in Launchpad before editing it. If it is Approved, contact the Assignee or another knowledgeable person before making changes.

  • 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

CategorySpec

FeistyToolchainRoadmap (last edited 2008-08-06 16:28:12 by localhost)