Please convert libsigc++-2.0 for multiarch

[Evan Broder]

Attached is a patch to libsigc++-2.0 which transitions it to use multiarch library paths.

The patch also marks the -dev package as multi-arch: same, which is safe as none of the header files are generated at build time, so they should be identical across architectures.

The most significant blocker to converting packages to multiarch is the presence of .la files which reference a library in its dependency_libs line. Debian has made cleaning up these .la files a release goal, and is tracking the presence of such problematic .la files at <http://release.debian.org/~aba/la/current.txt>.

According to that list, the two packages blocking libsigc++-2.0's transition are python-visual and subtitleeditor. subtitleeditor has already been fixed and both Debian and Ubuntu, and I uploaded a fix for python-visual a few days ago, so by that metric this conversion should be safe.

[Evan Broder (broder)]

Steve Langasek has suggested that he prefers to allow debhelper to substitute in the pre-dependency with Pre-Depends: ${misc:Pre-Depends}, so here is a new patch which does so.

[Micah Gersten (micahg)]

Looks fine except for the missing bug number, thanks!

[Micah Gersten (micahg)]

Didn't get auto-closed since I removed the source package accidentally, here's the changelog:

libsigc++-2.0 (2.2.10-0ubuntu2) precise; urgency=low

  * Convert to multiarch: (LP: #900421)
    - Pass --libdir with multiarch path to configure
    - Adjust .install files to refer to /usr/lib subdirs
    - Add multiarch Pre-Depends
 -- Evan Broder <email address hidden> Sun, 11 Dec 2011 00:42:34 -0600