checking for gtk+-2.0 >= 2.10.0 gtk+-unix-print-2.0 glib-2.0 gobject-2.0 gdk-x11-2.0... Requested 'gtk+-2.0 >= 2.10.0' but version of GTK+ is 2.8.17 Package gtk+-unix-print-2.0 was not found in the pkg-config search path. Perhaps you should add the directory containing `gtk+-unix-print-2.0.pc' to the PKG_CONFIG_PATH environment variable No package 'gtk+-unix-print-2.0' found
configure: error: Library requirements (gtk+-2.0 >= 2.10.0 gtk+-unix-print-2.0 glib-2.0 gobject-2.0 gdk-x11-2.0) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.
*** Fix above errors and then restart with               "make -f client.mk build"