Source: wcstools Version: 3.9.4-1 Severity: serious The version 3.9.4 of wcstools has incomatible changes in the ABI (wcs.h etc. some sizes of structures changed), which lead to a failure in packages like saods9 and montage.
As an example, the test of montage-wrapper (which calls montage) fails: https://ci.debian.net/data/packages/unstable/amd64/m/montage-wrapper/20160806_073113.autopkgtest.log.gz This needs a new SONAME and a transition of the dependent packages.