Reported on GHC devs: ``` $ ghc-stage2 --print-libdir /dane/projekty/ghc/build/inplace/lib $ ghc-stage2 --interactive --print-libdir ghc-stage2: panic! (the 'impossible' happened) (GHC version 7.9.20141222 for x86_64-unknown-linux): ghc-stage2: panic! (the 'impossible' happened) (GHC version 7.9.20141222 for x86_64-unknown-linux): v_unsafeGlobalDynFlags: not initialised Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug ``` Does not happen with GHC 7.8.x. <details><summary>Trac metadata</summary> | Trac field | Value | | ---------------------- | ------------ | | Version | 7.9 | | Type | Bug | | TypeOfFailure | OtherFailure | | Priority | high | | Resolution | Unresolved | | Component | Driver | | Test case | | | Differential revisions | | | BlockedBy | | | Related | | | Blocking | | | CC | | | Operating system | | | Architecture | | </details> <!-- {"blocked_by":[],"summary":"GHCi panic with --print-libdir flag","status":"New","operating_system":"","component":"Driver","related":[],"milestone":"7.10.1","resolution":"Unresolved","owner":{"tag":"Unowned"},"version":"7.9","keywords":[],"differentials":[],"test_case":"","architecture":"","cc":[""],"type":"Bug","description":"Reported on GHC devs:\r\n\r\n{{{\r\n$ ghc-stage2 --print-libdir\r\n/dane/projekty/ghc/build/inplace/lib\r\n$ ghc-stage2 --interactive --print-libdir\r\nghc-stage2: panic! (the 'impossible' happened)\r\n (GHC version 7.9.20141222 for x86_64-unknown-linux):\r\n ghc-stage2: panic! (the 'impossible' happened)\r\n (GHC version 7.9.20141222 for x86_64-unknown-linux):\r\n v_unsafeGlobalDynFlags: not initialised\r\n\r\nPlease report this as a GHC bug: http://www.haskell.org/ghc/reportabug\r\n\r\n\r\nPlease report this as a GHC bug: http://www.haskell.org/ghc/reportabug\r\n}}}\r\n\r\nDoes not happen with GHC 7.8.x.","type_of_failure":"OtherFailure","blocking":[]} -->