To get the initial builds of Perl on z/OS to work, I've had to put some temporary hacks into the Configure script so that some of the compiler tests get the proper answer.
The main problem is that c89 requires the use of parenthesis for some of the options. i.e.: langlvl(longlong). The Configure script does not handle cflags in the same manner that makes it easy to keep the shell and c89 happy when the flags are passed to the compiler. Since the xlc compiler was released with z/OS 1.6 (~10 years ago?), it seems reasonable to update the make process to use xlc. This will be my plan, unless any of the current z/OS Perl users have a good reason not to. John Goodyear
