CI: mac chain: spoof all LCG_HOST_OS variables

5 jobs for testMacChains in 10 minutes and 10 seconds (queued for 29 seconds)
latest
Status Name Job ID Coverage
  Test
passed cc7 #14173212

00:09:13

passed fedora30 #14173214

00:02:56

failed mac #14173215

00:01:26

passed slc6 #14173211

00:06:40

passed ubuntu18 #14173213

00:03:30

 
Name Stage Failure
failed
mac Test
-- BEWARE: tauola has a version (28.121.2), but no target defined.
-- BEWARE: baurmc has a version (1.0), but no target defined.
-- Wrote package dependency information to /builds/sft/lcgcmake/build_dev3/dependencies.dot, /builds/sft/lcgcmake/build_dev3/dependencies.json and /builds/sft/lcgcmake/build_dev3/LCG_dev3_x86_64-mac1015-clang120-opt.txt.
-- Wrote compiler information to /builds/sft/lcgcmake/build_dev3/LCG_dev3_contrib_x86_64-mac1015-clang120-opt.txt.
-- Configuring incomplete, errors occurred!
See also "/builds/sft/lcgcmake/build_dev3/CMakeFiles/CMakeOutput.log".
Configure failed. Exit.
Cleaning up file based variables
ERROR: Job failed: exit code 1