if test "$with_cairo" != no && test "$with_gui" != "no"; then
PKG_CHECK_MODULES([GTK], [gtk+-2.0 >= 2.12], [],
[PSPP_REQUIRED_PREREQ([gtk+ 2.0 version 2.12 or later (or use --without-gui)])])
if test "$with_cairo" != no && test "$with_gui" != "no"; then
PKG_CHECK_MODULES([GTK], [gtk+-2.0 >= 2.12], [],
[PSPP_REQUIRED_PREREQ([gtk+ 2.0 version 2.12 or later (or use --without-gui)])])