docbook.am: global maintenance update - entities, images and olinking

Adding support in libX11 for html chunking caused a reorg of docbook.am
as well as the xorg-sgml-doctools masterdb for olinking.
The parameter img.src.path is added for pdf images.
A searchpath to the root builddir is added for local entities, if present.

The docbook.am makefile hides all the details and is identical for
all 22 modules having DocBook documentation. It is included by a thin
Makefile.am which requires no docbook knowledge.

Signed-off-by: Gaetan Nadon <memsize@videotron.ca>

1 files changed, 62 insertions, 54 deletions

diff --git a/docbook.am b/docbook.am
index 4809ce3..9377f5b 100644
--- a/docbook.am
+++ b/docbook.am
@@ -21,76 +21,84 @@ shelf_DATA =
 dist_shelf_DATA = $(docbook) $(chapters)
 
 if HAVE_XMLTO
-#
-# Generate DocBook/XML output formats with or without stylesheets
-#
-
-# Stylesheets are available if the package xorg-sgml-doctools is installed
 if HAVE_STYLESHEETS
 
-# The location where all cross reference databases are installed
-sgmldbsdir = $(XORG_SGML_PATH)/X11/dbs
-masterdb = "$(sgmldbsdir)/masterdb$(suffix $@).xml"
-XMLTO_FLAGS =							\
-	--searchpath "$(XORG_SGML_PATH)/X11"			\
-	--stringparam target.database.document=$(masterdb)	\
-	--stringparam current.docid="$(<:.xml=)"		\
-	--stringparam collect.xref.targets="no"
-
-XMLTO_XHTML_FLAGS = \
-	-x $(STYLESHEET_SRCDIR)/xorg-xhtml.xsl \
-	--stringparam html.stylesheet=$(STYLESHEET_SRCDIR)/xorg.css
-
-# Caution: img.src.path *must* not be used for html. Pdf copies the image.
-XMLTO_FO_FLAGS = \
-	-x $(STYLESHEET_SRCDIR)/xorg-fo.xsl	\
-	--stringparam img.src.path=$(abs_builddir)/
-endif HAVE_STYLESHEETS
+XMLTO_SEARCHPATH_FLAGS = 				\
+	--searchpath "$(XORG_SGML_PATH)/X11" 		\
+	--searchpath "$(abs_top_builddir)"
+XMLTO_HTML_OLINK_FLAGS = \
+	--stringparam target.database.document=$(XORG_SGML_PATH)/X11/dbs/masterdb.html.xml \
+	--stringparam current.docid="$(<:.xml=)"
+XMLTO_HTML_STYLESHEET_FLAGS = -x $(STYLESHEET_SRCDIR)/xorg-xhtml.xsl
+XMLTO_HTML_CSS_STYLESHEET_FLAGS = --stringparam html.stylesheet=$(STYLESHEET_SRCDIR)/xorg.css
+XMLTO_HTML_FLAGS = 					\
+	$(XMLTO_SEARCHPATH_FLAGS)			\
+	$(XMLTO_HTML_STYLESHEET_FLAGS)			\
+	$(XMLTO_HTML_CSS_STYLESHEET_FLAGS)		\
+	$(XMLTO_HTML_OLINK_FLAGS)
 
 shelf_DATA += $(docbook:.xml=.html)
-%.html: %.xml  $(chapters)
-	$(AM_V_GEN)$(XMLTO) $(XMLTO_FLAGS) $(XMLTO_XHTML_FLAGS) xhtml-nochunks $<
-
-if HAVE_FOP
-shelf_DATA += $(docbook:.xml=.pdf) $(docbook:.xml=.ps)
-%.pdf: %.xml $(chapters)
-	$(AM_V_GEN)$(XMLTO) $(XMLTO_FLAGS) $(XMLTO_FO_FLAGS) --with-fop pdf $<
-%.ps: %.xml $(chapters)
-	$(AM_V_GEN)$(XMLTO) $(XMLTO_FLAGS) $(XMLTO_FO_FLAGS) --with-fop ps $<
-endif HAVE_FOP
+%.html: %.xml $(chapters)
+	$(AM_V_GEN)$(XMLTO) $(XMLTO_HTML_FLAGS) xhtml-nochunks $<
 
 if HAVE_XMLTO_TEXT
+
 shelf_DATA += $(docbook:.xml=.txt)
 %.txt: %.xml $(chapters)
-	$(AM_V_GEN)$(XMLTO) $(XMLTO_FLAGS) $(XMLTO_XHTML_FLAGS) txt $<
+	$(AM_V_GEN)$(XMLTO) $(XMLTO_HTML_FLAGS) txt $<
 endif HAVE_XMLTO_TEXT
 
-#
-# Generate documents cross-reference target databases
-#
+if HAVE_FOP
+XMLTO_FO_IMAGEPATH_FLAGS = --stringparam img.src.path=$(abs_builddir)/
+XMLTO_PDF_OLINK_FLAGS = \
+	--stringparam target.database.document=$(XORG_SGML_PATH)/X11/dbs/masterdb.pdf.xml \
+	--stringparam current.docid="$(<:.xml=)"
+XMLTO_FO_STYLESHEET_FLAGS = -x $(STYLESHEET_SRCDIR)/xorg-fo.xsl
+
+XMLTO_FO_FLAGS = 					\
+	$(XMLTO_SEARCHPATH_FLAGS)			\
+	$(XMLTO_FO_STYLESHEET_FLAGS)			\
+	$(XMLTO_FO_IMAGEPATH_FLAGS)			\
+	$(XMLTO_PDF_OLINK_FLAGS)
+
+shelf_DATA += $(docbook:.xml=.pdf)
+%.pdf: %.xml $(chapters)
+	$(AM_V_GEN)$(XMLTO) $(XMLTO_FO_FLAGS) --with-fop pdf $<
 
-# This is only possible if the xorg-sgml-doctools package is installed
-if HAVE_STYLESHEETS
-if HAVE_XSLTPROC
+shelf_DATA += $(docbook:.xml=.ps)
+%.ps: %.xml $(chapters)
+	$(AM_V_GEN)$(XMLTO) $(XMLTO_FO_FLAGS) --with-fop ps $<
+endif HAVE_FOP
 
-# DocBook/XML generated document cross-reference database
-shelf_DATA += $(docbook:.xml=.html.db) $(docbook:.xml=.fo.db)
+# Generate documents cross-reference target databases
+if HAVE_XSLTPROC
 
-# Generate DocBook/XML document cross-reference database
-# Flags for the XSL Transformation processor generating xref target databases
-XSLTPROC_FLAGS =					\
+XSLT_SEARCHPATH_FLAGS = 				\
 	--path "$(XORG_SGML_PATH)/X11"			\
-	--stringparam targets.filename "$@"		\
-	--stringparam collect.xref.targets "only"	\
-	--nonet --xinclude
-
+	--path "$(abs_top_builddir)"
+XSLT_OLINK_FLAGS = 					\
+	--stringparam targets.filename "$@" 		\
+	--stringparam collect.xref.targets "only" 	\
+	--stringparam olink.base.uri "$(@:.db=)"
+
+XSLT_HTML_FLAGS =					\
+	$(XSLT_SEARCHPATH_FLAGS) 			\
+	$(XSLT_OLINK_FLAGS)				\
+	--nonet --xinclude				\
+	$(STYLESHEET_SRCDIR)/xorg-xhtml.xsl
+XSLT_PDF_FLAGS = 					\
+	$(XSLT_SEARCHPATH_FLAGS) 			\
+	$(XSLT_OLINK_FLAGS)				\
+	--nonet --xinclude				\
+	$(STYLESHEET_SRCDIR)/xorg-fo.xsl
+
+shelf_DATA += $(docbook:.xml=.html.db)
 %.html.db: %.xml  $(chapters)
-	$(AM_V_GEN)$(XSLTPROC) $(XSLTPROC_FLAGS) \
-	http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl $<
+	$(AM_V_GEN)$(XSLTPROC) $(XSLT_HTML_FLAGS) $<
 
-%.fo.db: %.xml $(chapters)
-	$(AM_V_GEN)$(XSLTPROC) $(XSLTPROC_FLAGS) \
-	http://docbook.sourceforge.net/release/xsl/current/fo/docbook.xsl $<
+shelf_DATA += $(docbook:.xml=.pdf.db)
+%.pdf.db: %.xml $(chapters)
+	$(AM_V_GEN)$(XSLTPROC) $(XSLT_PDF_FLAGS) $<
 
 endif HAVE_XSLTPROC
 endif HAVE_STYLESHEETS