Re: [MIT-Scheme-devel] new microcode with C back end

[Chris Hanson]

Taylor R Campbell wrote:
> The C back end on PowerPC fails to compile early on with the new
> microcode, due to the absence of a PC_ZERO_BITS macro in confshared.h.
> It seems that the definition was moved from the cmpauxmd/*.h files to
> confshared.h, but without any definition for the C back end, or
> PowerPC.  On the PowerPC it ought to be 2, but the C back end formerly
> automatically computed the value for whatever platform it ran on; is
> there any reason that it no longer does so in the new microcode?  (It
> is too late tonight for me to understand the relevant code.)

I don't think it needs to be correct for non-native code.  I've made a
change in confshared.h, please test.