-diff -u -r ../gnuplot-4.6.5/docs/Makefile.in ./docs/Makefile.in
---- ../gnuplot-4.6.5/docs/Makefile.in 2013-09-24 01:16:41.000000000 +0200
-+++ ./docs/Makefile.in 2014-07-15 19:43:12.670797472 +0200
-@@ -73,14 +73,14 @@
- INFO_DEPS = $(srcdir)/gnuplot.info
-
- CC = @CC_FOR_BUILD@
--CPP = @CPP@
-+CPP = cpp
- DEFS = @DEFS@
- DEFAULT_INCLUDES = -I. -I$(srcdir) -I.. -I$(top_builddir)
--CPPFLAGS = @CPPFLAGS@
--CFLAGS = @CFLAGS@
-+CPPFLAGS =
-+CFLAGS =
- GIHDIR = @GIHDIR@
- INCLUDES = -I$(top_srcdir)/src -I$(top_srcdir)/term
--LDFLAGS = @LDFLAGS@
-+LDFLAGS =
- LIBS = @LIBS@
-
- COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(CPPFLAGS) $(CFLAGS)