Do not warn on unknown pragma
Do not warn on unknown pragma

Luthaf/Chemharp,chemfiles/chemfiles,lscalfi/chemfiles,Luthaf/Chemharp,chemfiles/chemfiles,lscalfi/chemfiles,chemfiles/chemfiles,lscalfi/chemfiles,chemfiles/chemfiles,Luthaf/Chemharp,lscalfi/chemfiles