AC_ARG_WITH(
   smoke,
   [  --with-smoke@<:@=qt|kde@:>@   Smoke: build Smoke for qt+kde or qt only @<:@default:qt kde@:>@],
   [ kde_build_libsmoke="$withval" ],
   [ kde_build_libsmoke="qt kde" ]
)
AC_SUBST(kde_build_libsmoke)