I got error during configure phase: checking for intltool >= 0.35.5... ./configure: line 7229: intltool-update: command not found found configure: error: Your intltool is too old. You need intltool 0.35.5 or later. It turns out I didn't had intltool installed, after installing `intltool-0.51.0-r1` the gnome-color-chooser-0.2.5 package compiled and installed without a problem.
[master 22bdd93] gnome-extra/gnome-color-chooser: dev-util/intltool needed (#597854 by Marcin Szamotulski) 1 file changed, 2 insertions(+), 1 deletion(-)