Issue on windows build (mingw64)

[Torbjorn Granlund]

Vlad Gabriel <clampi at yahoo.com> writes:

  Regarding issue 3, un-commenting those statements made a lot of test
  fail throughout with SIGSEV. I tried debugging some, but fail to
  understand why they crash, as I had trouble understanding the renaming
  macros purpose. As a note, although I do have the impression that some
  pop's are missing from the epilogue, the crash happens in function
  itself, not when the return is encountered. Please advise if you have
  more thoroughly investigations steps on how to further debug the
  cause.
  
You were right about the missing pops, I fixed those, a more subtle
issue.  With some luck, the code now works.  I have pushed the fixes.

If you could try the new code, first uncommenting the ABI_SUPPORT decls,
I would appreciate it.

-- 
Torbjörn