checking for GTKMM... configure: error: Package requirements (gtkmm-2.4 glibmm-2.4 libglademm-2.4 gthread-2.0) were not met: No package 'gtkmm-2.4' found No package 'glibmm-2.4' found No package 'libglademm-2.4' found No package 'gthread-2.0' found Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. Alternatively, you may set the environment variables GTKMM_CFLAGS and GTKMM_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details.