# HG changeset patch
# User Thomas Arendsen Hein <thomas@intevation.de>
# Date 1138960498 -3600
# Node ID c6c76ead1cc1eaa80c180f1a52276588821e6d78
# Parent  43d3db1b8296729e7aff17817d450489a29c0c9c
Fall back to asciidoc6 html backend if html4 doesn't work.
This reenables building documentation on Debian sarge,
which broke after 9346a7fb3fe2.


diff --git a/doc/Makefile b/doc/Makefile
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -15,7 +15,7 @@ html: $(HTML)
 	asciidoc -d manpage -b docbook $*.txt
 
 %.html: %.txt
-	asciidoc -b html4 $*.txt
+	asciidoc -b html4 $*.txt || asciidoc -b html $*.txt
 
 clean:
 	$(RM) $(MAN) $(MAN:%=%.xml) $(MAN:%=%.html)