--- a/releases/install-release.html
+++ b/releases/install-release.html
@@ -64,6 +64,9 @@
 Repeatedly select "Configure" ("C" on Unix) until the entries stop
 changing and you get the chance to generate the makefiles ("OK" on
 Windows, and "G" on Unix).
+You may ignore any "something-NOTFOUND" message since these refer to optional components.
+But if you are sure that one of these components is present on your system, manually fill in the correct path and re-run configure.