diff -Naur gnuplot-4.6.0.orig/Makefile.in gnuplot-4.6.0/Makefile.in
--- gnuplot-4.6.0.orig/Makefile.in	2012-04-02 12:35:59.000000000 -0400
+++ gnuplot-4.6.0/Makefile.in	2012-04-02 12:36:11.000000000 -0400
@@ -250,7 +250,7 @@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 AUTOMAKE_OPTIONS = foreign 1.2h
-SUBDIRS = config m4 term src docs $(LISPDIR) man demo tutorial share
+SUBDIRS = config m4 term src $(LISPDIR) man tutorial share
 EXTRA_DIST = BUGS CodeStyle Copyright FAQ.pdf GNUmakefile INSTALL INSTALL.gnu \
 Makefile.maint PATCHLEVEL PGPKEYS PORTING README README.1ST \
 VERSION configure.vms pm3d win