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