Don't accept Vc versions <1.4.1 with Clang versions >=7

Close: #132 (closed)

enabled an automatic merge when the pipeline for 3bd5a4ca succeeds

mentioned in merge request docker/ci!30 (merged)

added 1 commit

• f620ff40 - Don't use cmake VERSION_GREATER_EQUAL comparison

Compare with previous version

enabled an automatic merge when the pipeline for f620ff40 succeeds

merged

mentioned in commit ef835c4b

mentioned in commit docker/ci@2ffb63fc