Fix compilation problem with external package Hal

Fixes the problem also when passing path info as CMake parameters for FairSoft/FairRoot apr21p2/v18.6.7.

The solution now works for CMake parameters as well as for environment variables for both FairSoft/FairRoot combinations apr21p2/v18.6.7 and nov22p1/v18.8.0.

changed milestone to %OCT23

added BugFix Build System Externals labels

requested review from @fweig

assigned to @fweig

changed the description

Dear @f.uhlig,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

approved this merge request

added 3 commits

• b8014abf...c30dff18 - 2 commits from branch computing:master
• 3fd35831 - Fix compilation problem with external package Hal

Compare with previous version

Don't think I encountered the particular issue this fixes, but looks fine to me.

enabled an automatic merge when the pipeline for 3fd35831 succeeds

merged

added Ported label