diff --git a/x11/xscreensaver/pkg-libwarning b/x11/xscreensaver/pkg-libwarning
new file mode 100644
index 000000000000..8cb4793662b4
--- /dev/null
+++ b/x11/xscreensaver/pkg-libwarning
@@ -0,0 +1,11 @@
+There is currently a conflict between configure for this port,
+and pkgconfig. If your build fails, do the following:
+
+make clean
+pkg_delete -f pkgconfig*
+make install
+
+You may also want to upgrade your complete ports tree and
+then re-install glib12 and gtk12 which will also fix the
+pkg-config files for those two ports, and should offer a
+more permanent solution.