doc/Makefile.am: update make style rules

diff --git a/doc/Makefile.am b/doc/Makefile.am
index f9e6d894cca7e1f918fc1d2035dddeeafb795da7..764a05030e77e990870797919f9f3b7ad42c1999 100644 (file)
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -27,12 +27,10 @@ doc-user:
 doc-examples: 
        (echo PROJECT_NUMBER = $(PROJECT_NUMBER) ; cat $(srcdir)/examples.cfg)  | doxygen -
 
-%.sgml: 
-
-%.1:   %.sgml
+.sgml.1:
        docbook-to-man $< > $*.1
 
-%.html: %.sgml
+.sgml.html:
        docbook2html $< && mv index.html $*.html
 
 clean: