Improve documentation generation (pdf only).

Add file VERSION that includes the FLTK version number (only), generate
fltk.pdf with automatic copyright year and doxygen version.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10352 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

documentation/Makefile

@@ -64,7 +64,7 @@ dist:	all html pdf
 alldocs: dist
 
 clean:
-	$(RM) fltk.pdf refman.pdf
+	$(RM) fltk.pdf refman.pdf src/fltk-book.tex
 	$(RMDIR) html latex
 	$(RM) *~ *.bck *.bak *.log
 	$(RM) $(MANPAGES) $(SRC_DOCDIR)/*.0
@@ -148,7 +148,7 @@ html-online: html
 pdf:	refman.pdf
 	cp -f latex/refman.pdf fltk.pdf
 
-refman.pdf: $(HTMLFILES) Doxybook
+refman.pdf: $(HTMLFILES) Doxybook src/fltk-book.tex
 	-$(RMDIR) latex
 	echo "Generating PDF documentation ..."
 	$(DOXYDOC) Doxybook ;\
@@ -166,6 +166,13 @@ refman.pdf: $(HTMLFILES) Doxybook
 	    done ; \
 	cd ..) > pdfall.log 2>&1
 
+src/fltk-book.tex: src/fltk-book.tex.in
+	DOXY_VERSION=`$(DOXYDOC) --version`; \
+	YEAR=`date +%Y`; \
+	FLTK_VERSION=`cat ../VERSION`; \
+	sed -e"s/@YEAR@/$$YEAR/g" -e"s/@VERSION@/$$FLTK_VERSION/g" \
+	    -e"s/@DOXY_VERSION@/$$DOXY_VERSION/g" < $< > $@
+
 #
 # End of "$Id$".
 #