X-Git-Url: http://git.shiar.net/unifont.git/blobdiff_plain/7c29a68c187ca8c0ef5cf975b874a91d0f227800..8e42f3d15c39e5c98149c9647c0cc1a318e9321a:/doc/Makefile

diff --git a/doc/Makefile b/doc/Makefile
index b68a539..7f58452 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -16,14 +16,24 @@ OUTPUT_FILES = unifont.info unifont.txt unifont.pdf
 	$(MAKEINFO) --plaintext $< -o $@
 
 .texi.pdf:
-	$(TEXI2PDF) $< > $@
+	$(TEXI2PDF) $<
 
 #
-# Comment out the "all:" line to make the documents.  The default is
-# to leave the existing unifont.info and unifont.pdf files in place,
-# in case the target system doesn't have makeinfo and texi2pdf installed.
+# The "all:" target does nothing, so that a higher-level "make" invocation
+# does not remake the texinfo files, in case the target system does not have
+# makeinfo and texi2pdf installed.
+# 
+# To rebuild the files, issue the command
+#
+#      make distclean ; make docprep ; make doc ; make clean
 #
 all:
+#
+# Type "make docprep" before typing "make doc".
+#
+docprep:
+	\rm -f $(OUTPUT_FILES)
+
 doc: $(OUTPUT_FILES)
 
 install: