[TUHS] speaking of early C compilers

Jason Stevens jsteve at superglobalmegacorp.com
Mon Oct 27 20:32:52 AEST 2014

has anyone ever tried to compile any of the old C compilers with a 'modern'
C compiler?

I tried a few from the 80's (Microsoft/Borland) and there is a bunch of
weird stuff where integers suddenly become structs, structures reference
fields that aren't in that struct,   

        register int t1;
                t1->type = UNSIGN;

And my favorite which is closing a bunch of file handles for the heck of it,
and redirecting stdin/out/err from within the program instead of just
opening the file and using fread/fwrite.. 

	if (freopen(argv[2], "w", stdout)==NULL ||

How did any of this compile?  How did this stuff run without clobbering

I don't know why but I started to look at this stuff with some half hearted
attempt at getting Apout running on Windows.  Naturally there is no fork, so
when a child process dies, the whole thing crashes out.  I guess I could
simulate a fork with threads and containing all the cpu variables to a
structure for each thread, but that sounds like a lot of work for a limited

But there really is some weird stuff in v7's c compiler.

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