Re: SCO vs. the monster macro

> 
> > But we don't want that if they use a good compiler under SCO.  I have
> > asked them to run src/tools/ccsym and send the output.  Should be
> > something unique in there.
> 
> On SCO, ccsym becomes /bin/cc -b elf -ii -E foo.c, which after filtering
> gives the symbols below. If I omit "-b elf", the last line is replaced
> by the two lines
> '-D_M_COFF'
> '-D_SCO_COFF'
> 
> How about _SCO_DS as the define when testing for SCO's native
> compiler? (I confess ignorance as to SCO's intended use of this symbol.)

I am inclined to choose:

	-D_SCO_C_DIALECT=1

Not to test for the value of one, but just to test if it is defined.

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