Bug#683029: ceres-solver: FTBFS on i386, more?: several tests fail

[Aaron M. Ucko]

Source: ceres-solver
Version: 1.1.1-1
Severity: serious
Justification: fails to build from source

The automated build of ceres-solver on i386 failed with test suite
errors stemming from a mix of heap corruption and numeric discrepancies:

https://buildd.debian.org/status/fetch.php?pkg=ceres-solver&arch=i386&ver=1.1.1-1&stamp=1343417409

Other platforms may be affected as well.  Could you please take a look?

Thanks!