Bug#648994: qt4-x11: g++-4.4 optimizer broken on Alpha
Source: qt4-x11
Version: 4:4.7.3-8
Severity: important
Tags: patch
Dear Maintainer,
Due to a bug in the g++-4.4 optimizer, the normal "-O2" build of "qt4-x11"
binary packages results in segfaults on the alpha architecture when apps
are run that use the "qt4" libraries. This includes "kdm" and the KDE4
"plasma-desktop" at a minimum (bad behavior verified and easy to reproduce).
A verified workaround is to build with "-O0". Note that
DEB_BUILD_OPTIONS=noopt is ignored by the QT build system: I ended up
editing the appropriate files under "mkspecs" directly to test the
workaround.
Unknown whether use of gcc/g++-4.6 fixes the issue.
-- System Information:
Debian Release: wheezy/sid
APT prefers unreleased
APT policy: (500, 'unreleased'), (500, 'unstable')
Architecture: alpha
Kernel: Linux 3.2.0-rc1
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
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