DVDStyler FTBFS on armel because of undefined reference to `__aeabi_d2lz@LIBAVFORMAT_53'

[Fabrice Coutadeur]

Hi,

When compiling dvdstyler for a SRU, it FTBFS in armel, with the following error:
configure:5034: error:
    DVDStyler requires the wxSVG library with FFMPEG support.

when looking back to the configure log, this error appears:
configure:5024: g++ -o conftest -g -O2 -fno-strict-aliasing -I/usr/lib/wx/include/gtk2-unicode-release-2.8 -I/usr/include/wx-2.8 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -D__WXGTK__ -pthread -I/usr/lib/wx/include/gtk2-unicode-release-2.8 -I/usr/include/wx-2.8 -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES -D__WXGTK__ -Wl,-Bsymbolic-functions conftest.cpp -pthread -Wl,-Bsymbolic-functions -L/usr/lib/arm-linux-gnueabi -lwx_gtk2u_html-2.8 -lwx_gtk2u_core-2.8 -lwx_baseu_net-2.8 -lwx_gtk2u_adv-2.8 -lwx_gtk2u_media-2.8 -lwx_gtk2u_core-2.8 -lwx_baseu-2.8 -lwx_gtk2u_html-2.8 -lwxsvg >&5
/usr/lib/gcc/arm-linux-gnueabi/4.6.1/../../../../lib/libwxsvg.so: undefined reference to `__aeabi_d2lz@LIBAVFORMAT_53'
collect2: ld returned 1 exit status

This is because of an issue with the toolchain on armel that has been fixed in gcc-4.6 4.6.1-8, uploaded on September the 5th. This is the corresponding changelog entry:
Fix [ARM] PR target/50090: aliases in libgcc.a with default visibility, taken from the trunk

I checked that rebuilding wxsvg make it possible to compile dvdstyler (tested in an arm chroot).

[Impact]
dvdstyler cannot be built on armel

[Development Fix]
wxsvg has been synced and rebuilt 4 weeks ago on Precise, meaning that it has been rebuilt with fixed toolchain

[Stable Fix]
A simple rebuild of wxsvg is enough to catch the fixed toolchain

[Test Case]
Building dvdstyler from source on armel fails. With the rebuilt package, it builds fine.

[Regression Potential]
Without this fix, dvdstyler FTBFS on armel and is thus not usable (see bug #885033). As dvdstyler has already been rebuilt for amd64, i386 and PPC, the possible regression are armel only.

[Fabrice Coutadeur (fabricesp)]

wxsvg has been rebuilt with new toolchain in Precise when syncing 2:1.1.2~dfsg0-1. dvdstyler builds fine in Precise on armel.

[Martin Pitt (pitti)]

Hello Fabrice, or anyone else affected,

Accepted wxsvg into oneiric-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

[Fabrice Coutadeur (fabricesp)]

Hi,

As you can see there: https://launchpad.net/ubuntu/+source/dvdstyler/1.8.3-0ubuntu2.1/+build/2924253 dvdstyler built fine on armel with this version of wxsvg, when it was FTBFS before.

Ths 'fix' works fine. Marking as verification-done.

Fabrice

[Launchpad Janitor (janitor)]

This bug was fixed in the package wxsvg - 2:1.1.0~dfsg-1ubuntu0.1

---------------
wxsvg (2:1.1.0~dfsg-1ubuntu0.1) oneiric-proposed; urgency=low

  * No changes upload to rebuild wxsvg on armel with a fixed toolchain. This
    fixes a FTBFS in dvdstyler on armel (LP: #890547).
 -- Fabrice Coutadeur <email address hidden> Tue, 15 Nov 2011 07:17:56 +0100