doc/Makefile: use multiple input, general cleanup

doc/Makefile

@@ -4,71 +4,53 @@
 # Copyright 1994,2000,2010,2011   Alessandro Rubini <rubini@linux.it>
 #
 #################
-#
-# BE CAREFUL in editing:
-#	due to the large number of index files, and my use of a non standard
-#	info input file, any file $(TARGET).* is removed by "make clean"
-#
-#	I chose to use a prefix for the input file ("doc.$(TARGET)"), to ease
-#	makeing clean and applying my own rules.
-#
-###################################################################
-
-TARGET = wrs-software
-
-# Assume makeinfo can do images and --html.
-# In any case, MAKEINFO can be specified on the commandline
-
-MAKEINFO = makeinfo
-
-##############################################
 
+# There is not basenames here, all *.in are considered input
 INPUT = $(wildcard *.in)
+
 TEXI = $(INPUT:.in=.texi)
+INFO = $(INPUT:.in=.info)
+HTML = $(INPUT:.in=.html)
+TXT  = $(INPUT:.in=.txt)
+PDF  = $(INPUT:.in=.pdf)
 
-.SUFFIXES: .in .texi .info .html .txt
+ALL    = $(INFO) $(HTML) $(TXT) $(PDF)
 
-.in.texi:
+MAKEINFO ?= makeinfo
+
+%.texi: %.in
 	@rm -f $@
 	sed -f ./infofilter $< > $@
 	emacs -batch --no-site-file -l fixinfo $@
 	chmod -w $@
 
-# unfortuantely implicit rules are not concatenated, so force a make run
-%.pdf: %.texi $(TEXI)
-	$(MAKE) $(TEXI)
+%.pdf: %.texi
 	texi2pdf --batch $<
 
-%.info: %.texi $(TEXI)
-	$(MAKE) $(TEXI)
+%.info: %.texi
 	$(MAKEINFO) $< -o $@
 
-%.html: %.texi $(TEXI)
-	$(MAKE) $(TEXI)
+%.html: %.texi
 	$(MAKEINFO) --html --no-split -o $@ $<
 
-%.txt: %.texi $(TEXI)
-	$(MAKE) $(TEXI)
+%.txt: %.texi
 	$(MAKEINFO) --no-headers $< > $@
 
 ##############################################
+.PHONY: all images check terse clean install
+.INTERMEDIATE: $(TEXI)
 
-ALL    = $(TARGET).info $(TARGET).txt $(TARGET).html $(TARGET).pdf
-
-all: images $(TEXI) $(ALL)
+all: images $(ALL)
+	$(MAKE) terse
 
 images::
 	if [ -d images ]; then $(MAKE) -C images || exit 1; fi
 
-info: $(TARGET).info
-
 check: _err.ps
 	gs -sDEVICE=linux -r320x200x16 $<
 
 terse:
-	for n in cp fn ky pg toc tp vr; do \
-	   rm -f $(TARGET).$$n; \
-	done
+	for n in cp fn ky pg toc tp vr aux log; do rm -f *.$$n; done
 	rm -f *~
 
 clean: terse