Merge topic 'makefile-normalize-depfile' 30926620bb Merge branch 'backport-3.21-makefile-normalize-depfile' 6bc6ffb9a9 Merge branch 'backport-3.20-makefile-normalize-depfile' 6a6efdcaed Makefiles: Normalize compiler-generated depfile paths Acked-by: Kitware Robot <kwrobot@kitware.com> Merge-request: !6297