[aur-general] Changes to AUR and community due to the multilib repository

[Jan Steffens]

On Fri, Aug 27, 2010 at 10:23 PM, Thomas Bächler <thomas at archlinux.org> wrote:
> With the creation of the [multilib] repository, all 32-bit libraries are
> now installed in /usr/lib32 and compiled from source using the
> gcc-multilib package instead of being copied from i686 packages. All AUR
> users maintaining lib32-* and bin32-* packages are encouraged to adapt
> their packages to the new layout.
>
> All trusted users who want to maintain 32 bit packages should join the
> arch-multilib mailing list and ask for access there. The x86_64
> community repository should remain lib32-free in the future.

Some pointers:

lib32-packages should...
  - only install the 32-bit libraries and depend on their 64-bit equivalent for
    completeness (e.g. lib32-foo depends on foo)
  - depend on lib32-glibc at least, if they don't depend on other
lib32-* packages.
  - depend on lib32-libtool if they require the libtool libraries at runtime
  - makedepend on gcc-multilib if they build using gcc
  - makedepend on libtool-multilib if they build using libtool
  - use as appropriate:
      export CC="gcc -m32"
      export CXX="g++ -m32"
      export PKG_CONFIG_PATH="/usr/lib32/pkgconfig"
  - symlink their license directory to the 64-bit version if they have
custom licenses
    (/usr/share/licenses/lib32-foo --> foo), instead of installing another copy
  - have a pkgdesc identical to their 64-bit version, with " (32-bit)" appended