Bug#801059: libxmu's debian/rules is not safe to execute in parallel
Package: src:libxmu
Version: 2:1.1.2-1
Severity: serious
Tags: sid stretch patch
seen in an Ubuntu test rebuild, however this may happen as well in a Debian build.
https://launchpadlibrarian.net/219669711/buildlog_ubuntu-wily-amd64.libxmu_2%3A1.1.2-1_BUILDING.txt.gz
the problem is that -j is added to MAKEFLAGS, and the binary-arch and
binary-indep targets are executed in parallel. The Ubuntu build now fails
dh_builddeb -s
[...]
dh_builddeb
dpkg-deb: building package 'libxmu6' in '../libxmu6_1.1.2-1_amd64.deb'.
tar: ./usr/lib/x86_64-linux-gnu/libXmu.so.6.2.0: file changed as we read it
dpkg-deb: error: subprocess tar -cf returned error exit status 1
[...]
debian/rules:101: recipe for target 'binary-indep' failed
make: *** [binary-indep] Error 1
make: *** Waiting for unfinished jobs....
Every debhelper command for the architecture dependent packages are executed twice.
patch at
http://launchpadlibrarian.net/220316375/libxmu_2%3A1.1.2-1_2%3A1.1.2-1ubuntu1.diff.gz
(together with using dpkg-buildflags, maybe dh_autoreconf could be used as well).
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