Draft: Resolve "Sync LDFLAGS-rpath with LIBRARY_PATH"
Closes #108
- loading a module will update LDFLAGS from the current LIBRARY_PATH
- no problems anymore with cmake while having
$LIBRARY_PATH
set - should also fix the rpath in from-source make/autotools builds (to be tested)
- and thereby should also obsolete the LIBRARY_PATH->LDFLAGS hack in the octopus configure wrappers