"Driver" makefile to convert all documents to SGML or XML at once.
diff --git a/Doc/tools/sgmlconv/Makefile b/Doc/tools/sgmlconv/Makefile
new file mode 100644
index 0000000..7416718
--- /dev/null
+++ b/Doc/tools/sgmlconv/Makefile
@@ -0,0 +1,29 @@
+# Simple makefile to control SGML generation for the entire document tree.
+# This should be used from the top-level directory (Doc/), not the directory
+# that actually contains this file:
+#
+# $ pwd
+# .../Doc
+# $ make -f tools/sgmlconv/Makefile
+
+TOPDIR=.
+TOOLSDIR=$(TOPDIR)/tools
+
+SGMLRULES=../$(TOOLSDIR)/sgmlconv/make.rules
+SUBDIRS=api ext lib mac ref tut
+
+all: sgml
+
+.PHONY: sgml xml
+
+sgml:
+ for DIR in $(SUBDIRS) ; do \
+ (cd $$DIR; \
+ $(MAKE) -f $(SGMLRULES) TOOLSDIR=../$(TOOLSDIR) sgml) \
+ done
+
+xml:
+ for DIR in $(SUBDIRS) ; do \
+ (cd $$DIR; \
+ $(MAKE) -f $(SGMLRULES) TOOLSDIR=../$(TOOLSDIR) xml) \
+ done