Don't build all directx related import libraries on ARM
math: Remove a bad comment
headers: Add ARM fenv defines
misc: Add ARM implementation for feclearexcept
misc: Add ARM implementation for fegetenv
misc: Add ARM implementation for fegetexceptflag
misc: Add ARM implementation for fegetround
misc: Add ARM implementation for feholdexcept
misc: Add ARM implementation for feraiseexcept
misc: Add ARM implementation for fesetenv
misc: Add ARM implementation for fesetexceptflag
misc: Add ARM implementation for fesetround
misc: Add ARM implementation for fetestexcept
misc: Add platform independent implementation for winbs_uint64
misc: Add platform independent implementation for winbs_ulong
misc: Add platform independent implementation for winbs_ushort