Comment 12 for bug 1088612

@Johan - A diff file (inkscape-win32-gtk3.diff) is available in the devlibs-gtk3 branch (there are other things to change apart from the build.xml file).
I've also added some documentation (win32-gtk3.txt) on how to compile Inkscape and how to update the devlibs.

Note that it's still experimental, and that some features (ImageMagick and Aspell) don't work due to compilation issues, and other things (hicolor icons) need to be fixed.