If you can isolate the differences between pkg-config versions then it's worth logging an issue with PkgConfig
Yes, I'll try to reach an understanding of that and file an issue.
It would also be nice to not have to rename the Gtk static and import libs.
UPDATE:One way is to edit the Libs entry in the relevant pc file.
For example, in D:\msys64\mingw64\lib\pkgconfig\glib-2.0.pc change the entry:
Libs: -L${libdir} -lglib-2.0 -lintl
to
Libs: -L${libdir} -lglib-2.0.dll -lintl.dll
That's probably less tedious than renaming the libraries, but it's still tedious :-(
And it would be good to not have to edit any of the generated Makefiles.
UPDATE: This is achieved by downgrading ExtUtils-Depends-0.8001 to ExtUtils-Depends-0.8000.
Finally, I'd like to see the G-I-O-0.050 test suite skip all of the tests as it should. (I actually managed to get that to happen a coupla nights back with my own build of perl-5.38.0 ... but haven't since been able to reproduce that "success".)
UPDATE: This is discussed at
https://www.perlmonks.org/?node_id=11154072 and addressed by the patch at
https://rt.cpan.org/Ticket/Display.html?id=149570
Unfortunately, there's a lot of opacity to get through when dealing with each of those issues ... but I'll plug away at it, at least util I get sick of it ;-)
Cheers,
Rob