Properly set compilation flags for OBJECT targets
Previously, some of the custom GROMACS flags were not properly passed.
Mostly warnings, but also -fexcess-precision=fast
and -funroll-all-loops
.
As a consequence, missing warnings allowed it to go unnoticed that
pulling
module was compiled without OpenMP. This omission is also
fixed here.
Refs #4747
Edited by Andrey Alekseenko