Hi Liza,
It has been ages since I last tried to compile the runtime on Windows. I did it now on a fresh Windows installation and I didn't have a problem with Perl. You certainly don't need ActivePerl. After the installation I just opened the MSYS shell and when I typed "perl" I saw that I have it and it works. Did you test that? Perhaps you didn't install some of the packages mentioned in the INSTALL file or you didn't fix the fstab file. My fstab file just contains:
c:/MinGW /mingw
After that I tried to compile the runtime. There was one problem that I had to fix since one part of the code was using Unix specific API but after that the compilation succeeded. The fix is already in darcs.
Regards,
Krasimir