dnl ** check for installed happy binary + version
#
AC_HAPPY
-if expr $HappyVersion \< "1.3" >/dev/null; then
+
+if test x"$HappyCmd" != x; then
+ if expr $HappyVersion \< "1.3" >/dev/null; then
echo " Happy Version 1.3 or later is required to compile GHC."
echo " Using the Happy sources in the tree.";
HappyCmd=""
-fi;
+ fi
+fi
#
#