diff --git a/gnome-system-monitor.changes b/gnome-system-monitor.changes
index 179b598..08835fe 100644
--- a/gnome-system-monitor.changes
+++ b/gnome-system-monitor.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Mar 17 12:34:52 UTC 2017 - jengelh@inai.de
+
+- Use %_smp_mflags for parallel build and limit fdupes to not
+  work across common partitions. Replace old-age $RPM_* by %-macros.
+
 -------------------------------------------------------------------
 Tue Mar 14 18:57:08 UTC 2017 - mgorse@suse.com
 
diff --git a/gnome-system-monitor.spec b/gnome-system-monitor.spec
index 47ad5f6..919e600 100644
--- a/gnome-system-monitor.spec
+++ b/gnome-system-monitor.spec
@@ -61,15 +61,15 @@ translation-update-upstream
 %build
 %configure \
 	--enable-systemd
-%__make %{?jobs:-j%jobs} V=1
+make %{?_smp_mflags} V=1
 
 %install
 %makeinstall
-echo DocPath=gnome-system-monitor >> $RPM_BUILD_ROOT%{_datadir}/applications/gnome-system-monitor.desktop
+echo DocPath=gnome-system-monitor >> %{buildroot}/%{_datadir}/applications/gnome-system-monitor.desktop
 %suse_update_desktop_file %{name}
 %suse_update_desktop_file %{name}-kde
 %find_lang %{name} %{?no_lang_C}
-%fdupes $RPM_BUILD_ROOT
+%fdupes %buildroot/%_prefix
 
 %post
 %desktop_database_post