AC_DEFUN([mdw_CHECK_LISP],
[AC_CHECK_PROGS([$1], [$2])
AC_ARG_VAR([$1], [Path to the $1 Lisp system.])
-case ,$enable_imagedump, in
- ,yes, | *,$2,*) dump=t ;;
+case $[]$1:,$enable_imagedump, in
+ :*) dump=nil ;;
+ *:,yes, | *:*,$2,*) dump=t ;;
*) dump=nil ;;
esac
AM_CONDITIONAL([DUMP_$1], [test $dump = t])])