Thank you Sven and Brandon for your help. I'm now able to build 7.10. -- View this message in context: http://haskell.1045720.n5.nabble.com/Unable-to-build-7-10-1-RC1-on-Jessie-tp5764254p5764259.html Sent from the Haskell - Glasgow-haskell-users mailing list archive at Nabble.com.