I get the following compile error with inkscape trunk rev 9964:

CXX widgets/sp-color-wheel-selector.o

widgets/sp-color-wheel-selector.cpp:138:22: error: missing binary operator before token "("

widgets/sp-color-wheel-selector.cpp:223:22: error: missing binary operator before token "("

widgets/sp-color-wheel-selector.cpp: In function ‘void resizeHSVWheel(GtkHSV*, GtkAllocation*)’:

widgets/sp-color-wheel-selector.cpp:135:42: error: ‘gtk_hsv_set_metrics’ was not declared in this scope

widgets/sp-color-wheel-selector.cpp: In member function ‘virtual void ColorWheelSelector::init()’:

widgets/sp-color-wheel-selector.cpp:169:26: error: ‘gtk_hsv_new’ was not declared in this scope

widgets/sp-color-wheel-selector.cpp:170:40: error: ‘GTK_HSV’ was not declared in this scope

widgets/sp-color-wheel-selector.cpp:170:49: error: ‘gtk_hsv_set_metrics’ was not declared in this scope

widgets/sp-color-wheel-selector.cpp: In member function ‘virtual void ColorWheelSelector::_colorChanged()’:

widgets/sp-color-wheel-selector.cpp:275:82: error: ‘gtk_rgb_to_hsv’ was not declared in this scope

widgets/sp-color-wheel-selector.cpp:276:42: error: ‘GTK_HSV’ was not declared in this scope

widgets/sp-color-wheel-selector.cpp:276:53: error: ‘gtk_hsv_set_color’ was not declared in this scope

widgets/sp-color-wheel-selector.cpp: In static member function ‘static void ColorWheelSelector::_wheelChanged(GtkHSV*, SPColorWheelSelector*)’:

widgets/sp-color-wheel-selector.cpp:351:40: error: ‘gtk_hsv_get_color’ was not declared in this scope

widgets/sp-color-wheel-selector.cpp:356:39: error: ‘gtk_hsv_to_rgb’ was not declared in this scope

widgets/sp-color-wheel-selector.cpp:367:94: error: ‘gtk_hsv_is_adjusting’ was not declared in this scope

I'm using Gentoo Linux ~amd64, let me know if there are any dependency versions you need to know.

Thanks, Jeff