Notes for crystal-facet-uml - reproducible builds result

Version annotated: 1.27.3-1
Bugs noted: 983836+: "crystal-facet-uml: gcov support introduces reproducibility issues"
Comments: Version 1.27.3 enabled gcov support, disabling gcov makes it build
reproducibly again.
 

Our notes about issues affecting packages are stored in notes.git and are targeted at packages in Debian in 'unstable/amd64' (unless they say otherwise).