Building libctf on MinGW

[Eli Zaretskii]

Hi,

Back in November I built Binutils 2.33 with mingw.org's MinGW, and
bumped into 3 compilation problems, which I reported on Bugzilla:

  https://sourceware.org/bugzilla/show_bug.cgi?id=25155

There was no response to that report, and these days I've built a
pretest of GDB 9.1 and bumped into the same problem.

Could these minor issues in libctf please be resolved upstream?  If
you need some more information from me beyond what's in Bugzilla,
please tell.

TIA