On windows gtk::init() fails with entry point not found errors

[madmaxio]

On windows gtk::init() fails with entry point not found errors:

cairo_win32_surface_create_with_format not found in DLL C:\msys64\mingw64\bin\libgdk-3-0.dll

g_getenv not found in DLL C:\msys64\mingw64\bin\libatk-1.0.-0.dll

[GuillaumeGomez]

cc @EPashkin (since you have a windows 😛 )

[EPashkin]

Don't see cairo_win32_surface_create_with_format in cairo, gdk. Where you get that name?
Windows version of g_getenv named g_getenv_utf8 and it in libglib-2.0-0.dll (with just g_getenv).

[EPashkin]

Oh, forgot read issue title :(
This very strange

[madmaxio]

Well i googled cairo issue, https://bugs.freedesktop.org/show_bug.cgi?id=92771
Somehow it looks like i habe older version of it installed, but I have no idea how to fix, because i used pacman to install gtk

[EPashkin]

@madmaxio This error repeated on https://github.com/gtk-rs/examples/blob/master/src/bin/basic.rs ?

[madmaxio]

Yes, behavior is exactly same.

[EPashkin]

What says pkg-config --modversion cairo gtk+-3.0 gdk-3.0 in mingw64 prompt ?

[EPashkin]

Sorry, was wrong copy.

[EPashkin]

Also what pathes return where libgtk-3-0.dll in windows command prompt.

[madmaxio]

It is C:\msys64\mingw64\bin\libgtk-3-0.dll

[EPashkin]

Seems your messages missleading, cairo_win32_surface_create_with_format present in cairo and used in gdk.

[EPashkin]

And what says pkg-config? It can be run from windows command-line too.

[EPashkin]

where libgtk-3-0.dll seems normal, try run it from place where you run cargo,
also with libcairo-2.dll, libgdk-3-0.dll, libglib-2.0-0.dll, libatk-1.0-0.dll it all must point to same directory.

[madmaxio]

pkg-config --libs libgtk-3-0.dll

Package libgtk-3-0.dll was not found in the pkg-config search path.
Perhaps you should add the directory containing `libgtk-3-0.dll.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libgtk-3-0.dll' found

[madmaxio]

where libcairo-2.dll

C:\gstreamer\1.0\x86_64\bin\libcairo-2.dll
C:\msys64\mingw64\bin\libcairo-2.dll

where libgdk-3-0.dll

C:\msys64\mingw64\bin\libgdk-3-0.dll

where libglib-2.0-0.dll

C:\gstreamer\1.0\x86_64\bin\libglib-2.0-0.dll
C:\msys64\mingw64\bin\libglib-2.0-0.dll

where libatk-1.0-0.dll

C:\msys64\mingw64\bin\libatk-1.0-0.dll

I did some gstreamer stuff earlier, looks like this is the problem (two places for libcairo-2.dll)?

[EPashkin]

Yes, seems gstreamer has old cairo and atk.

[EPashkin]

Check pkg-config --modversion cairo gtk+-3.0 gdk-3.0 just in case
But IMHO better way change your %PATH% variable that gstreamer will be after mingw64

[madmaxio]

Wow, it worked! Thx a lot!

[GuillaumeGomez]

@EPashkin: We should maybe add a "troubleshot" section for windows on gtk-rs.org, don't you think?

[EPashkin]

Not sure about it, there too many way to broke windows installation.