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+#=============================================================================
+#
+#    rules.doc
+#
+#    Additional rules for processing documentation written in DocBook/SGML
+#
+#=============================================================================
+#####COPYRIGHTBEGIN####
+#                                                                          
+# -------------------------------------------                              
+# The contents of this file are subject to the Red Hat eCos Public License 
+# Version 1.1 (the "License"); you may not use this file except in         
+# compliance with the License.  You may obtain a copy of the License at    
+# http://www.redhat.com/                                                   
+#                                                                          
+# Software distributed under the License is distributed on an "AS IS"      
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+# License for the specific language governing rights and limitations under 
+# the License.                                                             
+#                                                                          
+# The Original Code is eCos - Embedded Configurable Operating System,      
+# released September 30, 1998.                                             
+#                                                                          
+# The Initial Developer of the Original Code is Red Hat.                   
+# Portions created by Red Hat are                                          
+# Copyright (C) 2001 Red Hat, Inc.                             
+# All Rights Reserved.                                                     
+# -------------------------------------------                              
+#                                                                          
+#####COPYRIGHTEND####
+#=============================================================================
+#####DESCRIPTIONBEGIN####
+#
+# Author(s):     bartv
+# Date:          2001-01-11
+# Purpose:       Rules for processing documentation
+# Description:
+#     Each package's doc directory's makefile should define the
+#     following variables:
+#       TOPLEVEL   - of the component repository
+#       MAIN_SGML  - documentation entry point
+#       OTHER_SGML - any other .sgml files accessed from main
+#       PICTURES   - referenced by the SGML files
+#####DESCRIPTIONEND####
+#=============================================================================
+
+.PHONY: default check html pdf clean
+
+# Locations of the stylesheets and other SGML support files
+CATALOG          := /usr/lib/sgml/CATALOG
+MAIN_STYLESHEETS := /usr/lib/sgml/stylesheets/nwalsh-modular
+ECOS_STYLESHEET  := $(TOPLEVEL)/pkgconf/stylesheet.dsl
+FIXHTML          := $(TOPLEVEL)/pkgconf/fixhtml.tcl
+
+# The files that will be generated:
+ifeq (,$(MAIN_HTML))
+ MAIN_HTML        := $(subst .sgml,.html,$(MAIN_SGML))
+endif
+ifeq (,$(MAIN_PDF))
+ MAIN_PDF         := $(subst .sgml,.pdf,$(MAIN_SGML))
+endif
+
+# Rules for generating pictures
+GIFS := $(foreach x,$(PICTURES),$(x).gif)
+EPS  := $(foreach x,$(PICTURES),$(x).eps)
+
+%.gif: %.fig
+	convert -crop 0x0 $< $@
+
+%.eps: %.fig
+	convert -crop 0x0 $< $@
+
+default: check
+
+# Validating an sgml document can be achieved with 
+check: $(MAIN_SGML) $(OTHER_SGML) $(GIFS) $(EPS)
+	nsgmls -vs -c $(CATALOG) $<
+
+# Generating HTML from the SGML. In practice multiple .html files may
+# be generated, but for the purposes of dependency analysis the others
+# can be ignored.
+html: $(MAIN_HTML)
+
+$(MAIN_HTML): $(MAIN_SGML) $(OTHER_SGML) $(GIFS) $(ECOS_STYLESHEET) $(FIXHTML)
+	jade -t sgml -i html -d $(ECOS_STYLESHEET)#html $<
+	tclsh $(FIXHTML)
+
+# PDF files can be generated in a similar fashion.
+pdf: $(MAIN_PDF)
+
+$(MAIN_PDF):  $(MAIN_SGML) $(OTHER_SGML) $(EPS) $(ECOS_STYLESHEET)
+	jade -o $(subst .sgml,.tex,$(MAIN_SGML)) -t tex -V tex-backend -d $(ECOS_STYLESHEET)#print $<
+	pdfjadetex $(subst .sgml,.tex,$(MAIN_SGML))
+	pdfjadetex $(subst .sgml,.tex,$(MAIN_SGML))
+	pdfjadetex $(subst .sgml,.tex,$(MAIN_SGML))
+
+#$(MAIN_PDF):  $(MAIN_SGML) $(OTHER_SGML) $(EPS) $(ECOS_STYLESHEET)
+#	jade -o $(subst .sgml,.tex,$(MAIN_SGML)) -t tex -V tex-backend -d $(ECOS_STYLESHEET)#print $<
+#	jadetex $(subst .sgml,.tex,$(MAIN_SGML))
+#	jadetex $(subst .sgml,.tex,$(MAIN_SGML))
+#	jadetex $(subst .sgml,.tex,$(MAIN_SGML))
+#	dvips -o $(subst .sgml,.ps,$(MAIN_SGML)) $(subst .sgml,.dvi,$(MAIN_SGML))
+#	ps2pdf $(subst .sgml,.ps,$(MAIN_SGML)) $(subst .sgml,.pdf,$(MAIN_SGML))
+
+# Clean. For now assume that all .html, .gif etc files are generated
+clean:
+	rm -rf *.html *.tex *.dvi *.aux *.log *.ps *.pdf *.gif *.eps
+