-# Use autoconf and autoheader to create configure.sh and config.h.in.
-# If unsuccessful and the "fetch" option was provided, grab the latest
-# development versions of these files (only useful with a dev checkout).
+# Either use autoconf and autoheader to create configure.sh and config.h.in
+# or (optionally) fetch the latest development versions of generated files.
+#
+# Specify one action or more than one to provide a fall-back:
+#
+# build build the config files [the default w/no arg]
+# fetch fetch the latest dev config files
+# fetchgen fetch all the latest dev generated files
+# fetchSRC fetch the latest dev source files [NON-GENERATED FILES]
+#
+# The script stops after the first successful action.
+