....
checking where the gettext function comes from... libc
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for GTK... configure: error: Package requirements (gtk+-2.0 >= 2.6.0) were not met.
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.