Hi, I find this hard to review. I have no experienc with msvc and don't know when/what _MSC_VER implies or how to verify system_win32.c. I am also a bit worried that the various ifdefs will be hard to keep correct.
If we don't have HAVE_DECL_MMAP does the testsuite still work? Maybe this patch can be split up is separate concerns. But I have to admit I am a litle afraid this will be hard to keep working. Cheers, Mark
