#14612: unsolved constraints, panic during compilation -------------------------------------+------------------------------------- Reporter: msk | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 8.2.2 Resolution: duplicate | Keywords: Operating System: Linux | Architecture: x86_64 Type of failure: Compile-time | (amd64) crash or panic | Test Case: Blocked By: | Blocking: Related Tickets: #13106 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by RyanGlScott): * status: new => closed * resolution: => duplicate * related: => #13106 Comment: Yep, this is a duplicate of #13160. Here's the (proper) error you get on GHC 8.2.2: {{{ $ /opt/ghc/8.2.2/bin/ghci Bug.hs GHCi, version 8.2.2: http://www.haskell.org/ghc/ :? for help Loaded GHCi configuration from /home/rgscott/.ghci [1 of 1] Compiling Main ( Bug.hs, interpreted ) Bug.hs:4:28: error: Variable not in scope: makeRect :: a0 -> Rectangle | 4 | getWindowRect dpy w = fmap makeRect (getWindowAttributes dpy w) | ^^^^^^^^ Bug.hs:4:38: error: • Variable not in scope: getWindowAttributes :: Display -> Window -> IO a0 • Perhaps you meant ‘setLineAttributes’ (imported from Graphics.X11.Xlib) | 4 | getWindowRect dpy w = fmap makeRect (getWindowAttributes dpy w) | ^^^^^^^^^^^^^^^^^^^ }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14612#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler