This patch is needed when the .orig.tar.gz you are building for is
generated by a automake version having problems with Debian's
install-info command.

Index: ratpoison-1.4.0.dfsg/doc/Makefile.in
===================================================================
--- ratpoison-1.4.0.dfsg.orig/doc/Makefile.in	2006-06-26 11:10:08.000000000 +0200
+++ ratpoison-1.4.0.dfsg/doc/Makefile.in	2006-06-26 11:11:08.000000000 +0200
@@ -151,7 +151,7 @@
 uninstall-info-am:
 	$(PRE_UNINSTALL)
 	@if (install-info --version && \
-	     install-info --version | fgrep -i -v debian) >/dev/null 2>&1; then \
+	     install-info --version 2>&1 | sed 1q | fgrep -i -v debian) >/dev/null 2>&1; then \
 	  list='$(INFO_DEPS)'; \
 	  for file in $$list; do \
 	    echo " install-info --info-dir=$(DESTDIR)$(infodir) --remove $(DESTDIR)$(infodir)/$$file"; \
@@ -324,7 +324,7 @@
 	done
 	@$(POST_INSTALL)
 	@if (install-info --version && \
-	     install-info --version | fgrep -i -v debian) >/dev/null 2>&1; then \
+	     install-info --version 2>&1 | sed 1q | fgrep -i -v debian) >/dev/null 2>&1; then \
 	  list='$(INFO_DEPS)'; \
 	  for file in $$list; do \
 	    echo " install-info --info-dir=$(DESTDIR)$(infodir) $(DESTDIR)$(infodir)/$$file";\