[Debian-med-packaging] Bug#813282: libcereal: FTBFS: unrecognized command line option '-m32'

[Aaron M. Ucko]

Source: libcereal
Version: 1.1.2-1
Severity: important
Justification: fails to build from source

The s390x and mips64el builds of libcereal failed:

  c++: error: unrecognized command line option '-m32'
  unittests/CMakeFiles/portability_test32.dir/build.make:65: recipe for target 'unittests/CMakeFiles/portability_test32.dir/portability_test.cpp.o' failed

In general, 64-bit architectures don't necessarily support -m32, or
even explicit -m64.  As I recall, there's a build system option to
skip building this test; please activate that option.

Thanks!