The Prime Minister issued the threat in private meetings with other EC leaders at the two-day summit, which ended late on Saturday.
Downing Street confirmed plans for a summit of EC leaders were well advanced.
He called an emergency summit of EC leaders for early next month to sort out the shambles.
On April 8 a summit meeting of EC leaders approved £105,000,000 to aid Kurdish refugees.
Robertson had just returned from holidaying in India when Major proposed his Kurdish safe havens policy to a meeting of EC leaders.
EC leaders give spur to single market reforms.
In order to resolve the "Danish problem" EC leaders approved one legally binding "decision" and three clarifying "declarations" [see "conclusions of the presidency" below].
She accused EC leaders of conducting business incompetently and of living in "cloud cuckoo land".
The European Council, the periodic summits of EC leaders, will be the real winner.
What is less certain is whether the whole complex machinery for monetary union will be in place by the start of 1993, as most EC leaders want.