Build failed on Win10: undefined: wrapMenuModel

[phplego]

Description
Build failed

To Reproduce
Steps to reproduce the behavior:

• Install MSYS2
• Install gtk package pacman -S mingw-w64-x86_64-gtk3
• run go build on any gotk3 code

Expected behavior
go build with no errors

Error messages

MINGW64 /c/Users/AUSER/go-gtk
$ go build -x
WORK=C:\msys64\tmp\go-build899821325
mkdir -p $WORK\b004\
cat >C:\msys64\tmp\go-build899821325\b004\importcfg << 'EOF' # internal
# import config
packagefile reflect=C:\Users\AUSER\AppData\Local\go-build\87\878162c22428b3273a9b64fe8669e6cbd99d637
04c9617409b4aa23d0426554a-d
EOF
cd C:\Users\AUSER\go-gtk-hello-world
"C:\\msys64\\mingw64\\lib\\go\\pkg\\tool\\windows_amd64\\compile.exe" -o "$WORK\\b004\\_pkg_.a" -tri
mpath "$WORK\\b004=>" -p github.com/gotk3/gotk3/glib -lang=go1.14 -complete -buildid TKKC2_MxVgpjrcm
vHX1c/TKKC2_MxVgpjrcmvHX1c -goversion go1.22.0 -c=2 -nolocalimports -importcfg "$WORK\\b004\\importc
fg" -pack "C:\\Users\\AUSER\\go\\pkg\\mod\\github.com\\gotk3\\gotk3@v0.6.3\\glib\\cast.go" "C:\\User
s\\AUSER\\go\\pkg\\mod\\github.com\\gotk3\\gotk3@v0.6.3\\glib\\finalizers.go" "C:\\Users\\AUSER\\go\
\pkg\\mod\\github.com\\gotk3\\gotk3@v0.6.3\\glib\\glib_extension.go" "C:\\Users\\AUSER\\go\\pkg\\mod
\\github.com\\gotk3\\gotk3@v0.6.3\\glib\\glib_since_2_64.go"
# github.com/gotk3/gotk3/glib
..\go\pkg\mod\github.com\gotk3\gotk3@v0.6.3\glib\cast.go:6:11: undefined: wrapMenuModel

Environment:
gtk3 version: 3.24.41
go version: 'go1.22.0 windows/amd64'
os: Windows 10

$ pkg-config --cflags --libs gtk+-3.0
-I/mingw64/include/gtk-3.0 -I/mingw64/include/pango-1.0 -I/mingw64/include/cairo -I/mingw64/include/harfbuzz -I/mingw64/include/freetype2 -I/mingw64/include/gdk-pixbuf-2.0 -I/mingw64/include/atk-1.0 -I/mingw64/include/glib-2.0 -I/mingw64/lib/glib-2.0/include -I/mingw64/include/pixman-1 -I/mingw64/include/libpng16 -I/mingw64/include/webp -DLIBDEFLATE_DLL -I/mingw64/include/fribidi -lgtk-3 -lgdk-3 -lz -lgdi32 -limm32 -lshell32 -lole32 -luuid -lwinmm -ldwmapi -lsetupapi -lcfgmgr32 -lhid -lwinspool -lcomctl32 -lcomdlg32 -lpangowin32-1.0 -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lintl

$ pkg-config --modversion gtk+-3.0
3.24.41

[veigaribo]

In my case, from what I could tell, this was happening because Go could not find a C compiler, so it ignored CGO files (like glib/menu.go, where wrapMenuModel is defined) and then failed with that very unhelpful message. You should see all CGO files in the IgnoredGoFiles section if you run go list -e -json -compiled ./... in the glib directory.

It stopped happening as soon as I got a gcc on the PATH (installed mingw-w64-x86_64-toolchain IIRC).