Don't run 'make config' before compiling wmii and make sure that the variable INCX11 in 'config.mk' is set to: INCX11 = $$(pkg-config --cflags $(X11PACKAGES))
Verify that this variable (and others) are not overwritten at the end of config.mk. I had a similar problem compilation issue. It is discussed here [1]. Hope this helps you come back to wmii. -- Marco Rucci [1] http://groups.google.com/group/wmii/browse_thread/thread/45bb3556cb69030c/ef52f122a3a5bb7e?lnk=gst&q=marco.rucci#ef52f122a3a5bb7e