On Thu, Dec 04, 2014 at 05:02:27AM +0400, Nikita Karetnikov wrote: (system (string-append "./configure" " -prefix " out " -camldir " --------------------------------------------------------^ Should these arguments not be a double -- ?? -- PGP Public key ID: 1024D/2DE827B3 fingerprint = 8797 A26D 0854 2EAB 0285 A290 8A67 719C 2DE8 27B3 See http://sks-keyservers.net or any PGP keyserver for public key.