Improve error message for bad --with-x-toolkit value.

diff --git a/configure1.in b/configure1.in
index 3562368953c52744ff9bc6095e313c866532ff0c..85699d8b7df5cf6c8b850a3aa145eaabb10d61c0 100755 (executable)
--- a/configure1.in
+++ b/configure1.in
@@ -212,7 +212,8 @@ Set it to either \`yes' or \`no'."
 #echo "${progname}: the \`--${optname}' option is supposed to have a value
 #which is \`yes', \`no', \`lucid', \`athena', \`motif' or \`open-look'."
 echo "${progname}: the \`--${optname}' option is supposed to have a value
-which is \`yes', \`no', \`lucid', or \`athena'."
+which is \`yes', \`no', \`lucid', or \`athena'.
+Currently, \`yes', \`athena' and \`lucid' are synonyms."
               echo "${short_usage}") >&2
              exit 1
            ;;