C on IBM MVS or VM/CMS

[Michael Eager]

kam at dlogics.UUCP (Kevin Mitchell) writes:
>We're considering porting some software to IBM machines running
>MVS or VM/CMS. If you know any good information about C compilers
>on these machines, please comment.



I ported a version of Spice consisting of several hundred modules 
and about 110,000 lines of C from Sun to MVS using the compiler
which IBM provides (I can't seem to remember who really makes the 
compiler).  There were a number of problems:  the MVS compiler is
ANSI-ish, the Sun is K&R; I needed to translate all [ to ??( and 
] to ??) (who would have thought that trigraphs were actually 
useful?); and I had to eliminate multiple definitions of global
variables (Sun just merges the definitions).

There is a second compiler available for MVS & VM, I believe by 
Lattice.  I have not used it, but the documentation appears to be
significantly better than the IBM compiler and there appear to be
more of the common library routines.

-- Mike Eager
Eager Consulting, 481 Century Drive, Campbell, CA 95008 (408) 378-8820