Show warning about config file location.

If a user generates a configuration file that kdesrc-build won't pick up
by default, then show a message after the setup script runs warning them
about that and letting them know what they have to do.

kdesrc-build-setup

@@ -408,4 +408,18 @@ showInfo("Generated configuration has been written to $outputFileName");
 # Say same thing in text mode just in case.
 system('clear');
 say "Generated configuration has been written to $outputFileName";
+
+if ($outputFileName ne '~/.kdesrc-buildrc') {
+    say <<EOF;
+
+Note that your configuration file in $outputFileName will
+NOT BE USED unless you either:
+1. Overwrite your ~/.kdesrc-buildrc with $outputFileName, or
+2. Copy $outputFileName to be called 'kdesrc-buildrc' in some directory
+   and ALWAYS run kdesrc-build from the directory, or
+3. ALWAYS pass the "--rc-file $outputFileName" option to kdesrc-build when you
+   run it.
+EOF
+}
+
 exit 0;