Simon Marlow
Perhaps you compiled mkDerivedConstants as a 32-bit executable?
Yes. I was not attentive enough. But now I have got a working compiler on FreeBSD-amd64-7.0. If anybody is interested, I shall prepare a package of the installed binaries. The compiler is good enough to compile itself now. Though there are problems remaining. One the programs I tested the computation of Meertens numbers from Bird/Wadler's book. This program segfaults on amd64, but not on i386. Here it is: module Main(main,primes,sieve,meertens) where -- a Meertens number is one whose decimal representation conincides with -- its Gödel number -- The 1st is 81312000 = 2^8*3*5^3*7*11^2 main :: IO() main = do putStr ( show ( meertens 8 ) ) -- putStr ( show ( meertens 9 ) ) primes= sieve [2..] sieve (p : nos) = p: sieve(remove (multsof p) nos ) where multsof p n = n `rem` p == 0 remove p = filter (not.p) powers p = iterate (p*) 1 meertens k = [n| (n,g) <- candidates (0,1),n == g ] where candidates = concat . map ( search pps ) . tail . labels ps ps : pps = map powers ( take k primes ) search [] x = [x] search (ps : pps) x = concat ( map ( search pps ) (labels ps x )) labels ps (n,g) = zip ( map (m+) ds)(chop(map(g*)ps)) where m = 10 * n chop = takeWhile(< 10000000000) ds = [0..9] -- Dipl.-Math. Wilhelm Bernhard Kloke Institut fuer Arbeitsphysiologie an der Universitaet Dortmund Ardeystrasse 67, D-44139 Dortmund, Tel. 0231-1084-257 PGP: http://vestein.arb-phys.uni-dortmund.de/~wb/mypublic.key