Gradient meshes don't work on Windows

[Christoph Neuhauser]

When I want to use the new gradient mesh feature in one of the Inkscape snapshots on Windows, the fill color always turns fully transparent.
I could reproduce this behaviour both on Windows 8.1 64-bit and Windows XP 32-bit with the following snapshots:
inkscape_r12605-201309281441
inkscape_r13442-201406291311

However, when I test the Inkscape version "1:0.48+devel+13444+48~ubuntu13.10.1" on my Linux Mint 16 system, everything works exactly as expected. I've attached the SVG file containing the gradient mesh I used to test.
It seems that others experience this bug as well, for example in the thread http://www.inkscapeforum.com/viewtopic.php?f=22&t=16091&start=25 you can read things like this:

Postby Tonttu » Thu Jun 05, 2014 9:08 pm
I'm using Inkscape 0.48+devel r13400 on Win7 and trying out the gradient mesh, but when I activate it on a shape, color disappears. Opacity in the stops remains full, but I can't see any color. ...

[Liam P. White (liampwhite)]

The current Cairo version in 32-bit devlibs is too old to support gradient meshes.

In the 64-bit package we distribute for Windows, the Cairo version is new enough to support meshes, but they are not enabled by default.

[Christoph Neuhauser (christoph-neuhauser)]

So if I follow the advice from "http://wiki.inkscape.org/wiki/index.php/Compiling_Inkscape_on_Windows_64-bit", I should be able to build an Inkscape snapshot with support for gradient meshes, shouldn't I?

[Johan Engelen (johanengelen)]

Yep.
You'd have to go in to build-x64.xml and change things around line 222.

[Christoph Neuhauser (christoph-neuhauser)]

OK, it compiles now so I'll test it tomorrow and write whether it solves the problem.

[Christoph Neuhauser (christoph-neuhauser)]

I've compiled and tested Inkscape on my system now, but it has a segmentation fault when launched.
As this is not related to the topic of this thread, I've created a new bug report for it: https://bugs.launchpad.net/inkscape/+bug/1336269

[su_v (suv-lp)]

Proposing to close as 'Invalid' for project Inkscape (not a bug in core inkscape). This needs to be addressed for 32bit Windows builds by upgrading cairo in the devlibs.

[su_v (suv-lp)]

This report can be closed both for Inkscape as well as for the devlibs:
- devlibs: cairo has been updated both in 32bit devlibs (1.14.6) and 64bit devlibs (1.15.2);
- inkscape: mesh gradients are enabled by default in Inkscape >= 0.92, and work on all supported platforms which provide cairo >= 1.11.4.