Package: libxaw8-dev Version: 6.8.2.dfsg.1-5 imake expands LOCAL_LIBRARIES = XawClientLibs into -lXaw -lXmu -lXt -lSM -lICE -lXpm -lXp -lXext -lX11 ^^^^ making libxp-dev necessary for building Xaw applications. (The other development packages are already listed in the dependencies.) Thanks, Matej