Disable autotools dependency tracking in %configure (#496522)

- autotools dependency tracking isn't generally useful in rpm builds;
  disabling it results in cleaner build logs and possibly slight build speedups
- patch from Ville Skyttä

macros

@@ -34,6 +34,7 @@
   FFLAGS="${FFLAGS:-%optflags -I%_fmoddir}" ; export FFLAGS ; \
   %{_configure} --build=%{_build} --host=%{_host} \\\
 	--program-prefix=%{?_program_prefix} \\\
+	--disable-dependency-tracking \\\
 	--prefix=%{_prefix} \\\
 	--exec-prefix=%{_exec_prefix} \\\
 	--bindir=%{_bindir} \\\