--- config/gr_doxygen.m4.orig	2005-12-17 11:43:43.000000000 +1030
+++ config/gr_doxygen.m4	2005-12-17 11:58:49.000000000 +1030
@@ -25,19 +25,21 @@
   AC_ARG_ENABLE(html-docs, [  --enable-html-docs      enable HTML generation with doxygen (yes)], [], [ enable_html_docs=yes])              
   AC_ARG_ENABLE(latex-docs, [  --enable-latex-docs     enable LaTeX doc generation with doxygen (no)], [], [ enable_latex_docs=no])
 
-  if test "x$enable_doxygen" = xno; then
-        enable_doc=no
-  else 
+  if test "x$enable_doxygen" = xyes; then
         AC_PATH_PROG(DOXYGEN, doxygen, , $PATH)
         if test x$DOXYGEN = x; then
                 if test "x$enable_doxygen" = xyes; then
                         AC_MSG_ERROR([could not find doxygen])
                 fi
                 enable_doc=no
+		generate_docs=
         else
                 enable_doc=yes
+		generate_docs=docs
                 AC_PATH_PROG(DOT, dot, , $PATH)
         fi
+  else 
+        enable_doc=no
   fi
 
   AM_CONDITIONAL(DOC, test x$enable_doc = xyes)
@@ -53,4 +55,5 @@
   AC_SUBST(enable_dot)
   AC_SUBST(enable_html_docs)
   AC_SUBST(enable_latex_docs)
+  AC_SUBST(generate_docs)
 ])
--- doc/Makefile.am.orig	2005-12-17 14:27:00.000000000 +1030
+++ doc/Makefile.am	2005-12-17 11:58:22.000000000 +1030
@@ -28,7 +28,7 @@
 
 EXTRA_DIST = 
 
-all-local: prep
+all-local: prep @generate_docs@
 doc: docs            # alias
 
 docs: prep html/index.html