[Win32] Glib-Object-Intropsection-0.042

[<sisyphus1 optusnet com au>]

Hi,

Firstly, during the Makefile.PL stage, the building of the test libraries 
proceeds with all useful output suppressed. (Not very amusing when that 
building fails.)
Why is that suppression the default ? ... and how do I turn it off ?

The test libraries don't build because the following command fails:

python 
C:\_64\msys64\mingw32\bin\g-ir-scanner --include=cairo-1.0 --include=Gio-2.0 
--namespace=Regress --nsversion=1.0 --quiet --warn-all --warn-error --library=libregress 
--output=Regress-1.0.gir 
C:/_64/msys64/mingw32/share/gobject-introspection-1.0/tests/regress.h 
C:/_64/msys64/mingw32/share/gobject-introspection-1.0/tests/regress.c 1>NUL 
2>NUL

By removing the "1>NUL 2>NUL" at the end of that command, I get to see this 
following piece of information:

ERROR: can't resolve libraries to shared libraries: libregress

But that's all I've so far managed to reveal.
libregress.dll exists in the Glib-Object-Intropsection-0.042/build directory

Beyond that, the build of the module also fails with unresolved symbols.

I was able to work around that by providing the full linking list on the 
command line:

perl Makefile.PL 
LIBS="-LC:\MinGW\perl524_64int\site\lib\auto\Glib -lGlib -LC:\_64\msys64\mingw32\lib 
-lgirepository-1.0 -lgobject-2.0 -lgio-2.0 -lglib-2.0 -lintl -lgmodule-2.0  
-lffi -lgthread-2.0"
make
make test
make install

That all works fine but 'make test', of course, runs no tests because the 
test libraries didn't build.

The unresolved symbols arose because the link to -lgio-2.0 was missing.
Interestingly, although the link to libgio-2.0.dll.a is missing when it 
comes to building G-O-I-0.042 itself, it's present in the command that 
(IIUC) successfully built build/libregress.dll.

Any thoughts on how I might coax the test libraries into existence ?
What does the error emitted by the python command tell us ? (I don't know 
python at all.)

As regards perl itself, the version is 5.24.0 and archname is 
'MSWin32-x86-multi-thread-64int'.

Cheers,
Rob