1dnl $OpenBSD: fibo.m4,v 1.2 2000/07/01 14:18:39 espie Exp $ 2define(`copy', `$1')dnl 3define(`fibo',dnl 4`ifelse($1,0,`a',dnl 5$1,1,`b',dnl 6`copy(fibo(decr($1)))`'copy(fibo(decr(decr($1))))')')dnl 7fibo(N) 8