port to PDOS (especially mainframe)

[Gisle Vanem]

Edwards wrote:

> I don't wish to run configure, I want to hand-construct
> the makefile. PDOS is a very simple system, so I only
> want to produce a single executable, no DLLs etc. I
> don't need extensions to work or anything, all I need
> to be able to do is run asma.

Why not try to port MicroPython instead? Much lighter.
I've ported it to MSDOS/djgpp with some success.

> However I'm currently stuck on this unresolved
> external:
> 
> python.a(abstract.o)(.text+0x668c):abstract.c: undefined reference to `PyExc_StopIteration'

It's in 'Objects/exceptions.c'. When in doubt, look at the
'python*.map' files. I assume you have managed to build
Python 3 on Windows (?).

And BTW, it's also forwarded from 'python3.dll' via some
hacks in 'python3dll.c' to the real Python in 'Python310.dll'
(in my case):
   pedump python3.dll | grep PyExc_StopIteration
     0000853A   227  PyExc_StopIteration (forwarder -> python310.dll.PyExc_StopIteration)

   plus a lot more; it's quite ugly.

-- 
--gv