[Vm-dev] [OpenSmalltalk/opensmalltalk-vm] Fixes for 64-bit MSVC minheadless build (#313)

[Eliot Miranda]

Hi Ben,

platforms/minheadless/windows/sqPlatformSpecific-Win32.c still has to cover both x64 and x86 so IMO the right way to write this:

    /* Setup the FPU */
    // x64 does not support _MCW_PC or _MCW_IC (https://msdn.microsoft.com/en-us/library/e9b52ceh.aspx)
     _controlfp(FPU_DEFAULT, _MCW_EM | _MCW_RC );

is

    /* Setup the FPU */
    // x64 does not support _MCW_PC or _MCW_IC (https://msdn.microsoft.com/en-us/library/e9b52ceh.aspx)
#if !defined(_MCW_PC)
# define _MCW_PC 0
#endif
#if !defined(_MCW_IC)
# define _MCW_IC 0
#endif 
     _controlfp(FPU_DEFAULT, _MCW_EM | _MCW_RC | _MCW_PC | _MCW_IC);

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