Bug#852995: givaro: FTBFS randomly (failing tests)

[Santiago Vila]

Package: src:givaro
Version: 4.0.2-5
Severity: important

Dear maintainer:

I tried to build this package in stretch with "dpkg-buildpackage -A"
but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-indep
dh build-indep --with autoreconf 
   dh_testdir -i
   dh_update_autotools_config -i
   dh_autoreconf -i
libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, 'build-aux'.
libtoolize: copying file 'build-aux/ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'macros'.
libtoolize: copying file 'macros/libtool.m4'
libtoolize: copying file 'macros/ltoptions.m4'
libtoolize: copying file 'macros/ltsugar.m4'
libtoolize: copying file 'macros/ltversion.m4'
libtoolize: copying file 'macros/lt~obsolete.m4'
configure.ac:149: installing 'build-aux/compile'

[... snipped ...]

ERROR a4 != a6
ERROR a7 != a8
ERROR a9 != a10
ERROR a1 != a3
ERROR a4 != a7
ERROR a2 != a5
ERROR a1 != a9
FAIL test-crt (exit status: 1)

============================================================================
Testsuite summary for Givaro 4.0.2
============================================================================
# TOTAL: 62
# PASS:  61
# SKIP:  0
# XFAIL: 0
# FAIL:  1
# XPASS: 0
# ERROR: 0
============================================================================
See tests/test-suite.log
Please report to Jean-Guillaume.Dumas at imag.fr
============================================================================
Makefile:1904: recipe for target 'test-suite.log' failed
make[6]: *** [test-suite.log] Error 1
make[6]: Leaving directory '/<<PKGBUILDDIR>>/tests'
Makefile:2010: recipe for target 'check-TESTS' failed
make[5]: *** [check-TESTS] Error 2
make[5]: Leaving directory '/<<PKGBUILDDIR>>/tests'
Makefile:2535: recipe for target 'check-am' failed
make[4]: *** [check-am] Error 2
make[4]: Leaving directory '/<<PKGBUILDDIR>>/tests'
Makefile:1797: recipe for target 'check-recursive' failed
make[3]: *** [check-recursive] Error 1
make[3]: Leaving directory '/<<PKGBUILDDIR>>/tests'
Makefile:579: recipe for target 'check-recursive' failed
make[2]: *** [check-recursive] Error 1
make[2]: Leaving directory '/<<PKGBUILDDIR>>'
dh_auto_test: make -j1 check VERBOSE=1 returned exit code 2
debian/rules:41: recipe for target 'override_dh_auto_test' failed
make[1]: *** [override_dh_auto_test] Error 2
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
debian/rules:52: recipe for target 'build-indep' failed
make: *** [build-indep] Error 2
dpkg-buildpackage: error: debian/rules build-indep gave error exit status 2
--------------------------------------------------------------------------------

This is just how the build ends, not necessarily the relevant part.

I've put several build logs here:

https://people.debian.org/~sanvila/build-logs/givaro/

If this is really a bug in one of the build-depends, please use reassign and affects,
so that this is still visible in the page for this package.

The bug should be reproducible with sbuild on a single CPU virtual machine,
provided you try enough times (as the failure happens randomly).

(Note: Failure rate is very low, around 1%, it might be more interesting to skip
trying to reproduce it and instead look at the build logs and try to guess how
it may happen).

Thanks.