RELNOTESng infrastructure fixes:

1.  There is now only one RELNOTESng stylesheet; the architecture-specific
stylesheets (to handle different values of the arch= attribute) are gone.

2.  Several Makefile variable definitions were factored into
doc.relnotes.mk.

Submitted by:	dd

1 files changed, 32 insertions, 0 deletions

diff --git a/release/doc/share/sgml/release.dsl b/release/doc/share/sgml/release.dsl
new file mode 100644
index 0000000..a1666f6
--- /dev/null
+++ b/release/doc/share/sgml/release.dsl
@@ -0,0 +1,32 @@
+<!-- $FreeBSD$ -->
+
+<!DOCTYPE style-sheet PUBLIC "-//James Clark//DTD DSSSL Style Sheet//EN" [
+<!ENTITY freebsd.dsl PUBLIC "-//FreeBSD//DOCUMENT DocBook Stylesheet//EN" CDATA DSSSL>
+]>
+
+<style-sheet>
+  <style-specification use="docbook">
+    <style-specification-body>
+
+; The architecture we're building for.  We need to define this as a
+; procedure, because we may not be able to evaluate it until we are
+; at a point in formatting where (current-node) is defined.
+
+(default
+  (let* ((arch (attribute-string (normalize "arch")))
+	 (for-arch (entity-text "arch")))
+    (if (or (equal? arch #f)
+	    (equal? arch ""))
+	(next-match)
+; We can do a lot more flexible things here.  Like it'd be nice to
+; tokenize the arch= attribute and do comparisons of for-arch against
+; different substrings.
+	(cond ((equal? arch for-arch) (next-match))
+	      (else (empty-sosofo))))))
+
+    </style-specification-body>
+  </style-specification>
+
+  <external-specification id="docbook" document="freebsd.dsl">
+</style-sheet>
+