CMake handling is different
STEP: Removed preprocessing stage
STEP: Small refactoring
STEP: Bigger refactoring
STEP: Changed naming on loaded object and volumes:
If the STEP contains exactly one named volume, the object and its first
volume will both have that name. Otherwise, filename w/o suffix is used
as object name and volumes are named using names from the STEP (if there
is none, untranslated "PartN" string is used).
STEP: Load the libraries dynamically on Win
wip
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