This gets rid of a lot of these:
dpkg-shlibdeps: warning: package could avoid a useless dependency if /home/ian/things/Chiark-utils/chiark-utils.git/debian/tmp/chiark-utils-bin/usr/bin/xduplic-copier was not linked against libXt.so.6 (it uses none of the library's symbols)
On platforms without shared library support, it may be necessary to
edit the Makefile to put them back.
xbatmon-simple: LDLIBS += -lX11 -lm
-xduplic-copier: LDLIBS += -lXmu -lSM -lICE -lXt -lXext
-xduplic-copier: LDLIBS += -lX11 -lxcb -lXau -lXdmcp
+xduplic-copier: LDLIBS += -lXmu -lX11
+#xduplic-copier: LDLIBS += -lXmu -lSM -lICE -lXt -lXext
+#xduplic-copier: LDLIBS += -lX11 -lxcb -lXau -lXdmcp
summer: summer.o
summer: LDLIBS += -lnettle -lgmp
* Install manpage summer(1).
* Provide more .txt `docs' (xbatmon-simple.txt, rcopy-repeatedly.txt).
* Drop `-isp' from dpkg-gencontrol invocation.
+ * Drop a lot of -l options from xduplic-copier.
-- Ian Jackson <ijackson@chiark.greenend.org.uk> Tue, 29 Mar 2016 22:35:23 +0100