As an addendum to my last comment …
Note there are shortcuts when calling the scripts via include/build. So the following are equivalent:
build $OsvvmLibraries/OsvvmLibraries.pro
build $OsvvmLibraries/OsvvmLibraries ; # Automatically adds .pro extension
build $OsvvmLibraries ; # looks for OsvvmLibraries.pro or build.pro in the directory
