Setup some missing files needed for help to build correctly

cde/configure.ac

@@ -728,6 +728,8 @@ programs/dtdocbook/lib/Makefile
 programs/dtdocbook/lib/tptregexp/Makefile
 programs/dtdocbook/instant/Makefile
 programs/dtdocbook/xlate_locale/Makefile
+programs/dtdocbook/doc2sdl/Makefile
+programs/dtdocbook/doc2sdl/SGML/Makefile
 
 programs/localized/Makefile
 programs/localized/util/Makefile

cde/programs/dtdocbook/Makefile.am

@@ -1,3 +1,3 @@
 MAINTAINERCLEANFILES = Makefile.in
 
-SUBDIRS = lib instant xlate_locale
+SUBDIRS = lib instant xlate_locale doc2sdl

cde/programs/dtdocbook/doc2sdl/Makefile.am

@@ -0,0 +1,3 @@
+MAINTAINERCLEANFILES = Makefile.in
+
+SUBDIRS = SGML

cde/programs/dtdocbook/doc2sdl/SGML/Makefile.am

@@ -0,0 +1,11 @@
+MAINTAINERCLEANFILES = Makefile.in
+
+BUILT_SOURCES = docbook.dtd dtinfo.af
+CLEANFILES = $(BUILT_SOURCES)
+
+docbook.dtd: $(top_srcdir)/programs/dtinfo/dtinfogen/infolib/C.ISO-8859-1/SGML/docbook.dtd
+	$(LN_S) $< $@
+
+dtinfo.af: $(top_srcdir)/programs/dtinfo/dtinfogen/infolib/C.ISO-8859-1/SGML/dtinfo.af
+	$(LN_S) $< $@
+