I don't think that upgrading the compiler will help with Windows builds:
According to the readme, KK only updated the GTK+ stack to 2.24.8, while keeping the old version of gtkmm (2.22): <http://bazaar.launchpad.net/~inkscape.dev/inkscape-devlibs/trunk/view/head:/readme.txt#L35>
I don't think that upgrading the compiler will help with Windows builds:
According to the readme, KK only updated the GTK+ stack to 2.24.8, while keeping the old version of gtkmm (2.22): bazaar. launchpad. net/~inkscape. dev/inkscape- devlibs/ trunk/view/ head:/readme. txt#L35>
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