Fix compiler flags for clang (-mfpmath not needed as it is automatic)
Fix compiler flags for clang (-mfpmath not needed as it is automatic)

Milad-Rakhsha/chrono,dariomangoni/chrono,dariomangoni/chrono,projectchrono/chrono,projectchrono/chrono,dariomangoni/chrono,rserban/chrono,dariomangoni/chrono,projectchrono/chrono,Milad-Rakhsha/chrono,Milad-Rakhsha/chrono,rserban/chrono,Milad-Rakhsha/chrono,Milad-Rakhsha/chrono,rserban/chrono,dariomangoni/chrono,projectchrono/chrono,rserban/chrono,projectchrono/chrono,rserban/chrono,rserban/chrono,rserban/chrono,dariomangoni/chrono,Milad-Rakhsha/chrono,projectchrono/chrono