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gtk expects GTK+, GLib and Cairo development files to be installed on your system. Optionally, it is recommended to install the debug packages containing helpful debug symbols.

Debian and Ubuntu

sudo apt-get install libgtk-3-dev sudo apt-get install libgtk-3-0-dbg libglib2.0-0-dbg libcairo2-dbg

Fedora

sudo dnf install gtk3-devel glib2-devel

Fedora 21 and earlier

sudo yum install gtk3-devel glib2-devel

OS X

brew install gtk+3