cl main.cpp character.cpp math.cpp weapon.cpp /EHsc /showIncludes /MP
cl /Yc"pch.h" /Fp"pch.pch" pch.cpp /c /EHsc
cl /Yu"pch.h" main.cpp math.cpp /c /EHsc
link main.obj math.lib /out:engine.exe
cl /FeMath.dll math.cpp /link /dll
cl /FeMath.dll math.cpp /LD /D_EXPORTING
cl main.cpp /EHsc /D_IMPORTING /Fegame.exe /link Math.lib