On MacOs Sierra version 10.12.1, XCode version 8.1:
cabal install yesod
...
Failed to install yesod-auth-1.4.13.2
Build log ( /Users/andriusm/.cabal/logs/yesod-auth-1.4.13.2.log ):
Configuring yesod-auth-1.4.13.2...
Building yesod-auth-1.4.13.2...
Preprocessing library yesod-auth-1.4.13.2...
[ 1 of 12] Compiling Yesod.PasswordStore ( Yesod/PasswordStore.hs, dist/build/Yesod/PasswordStore.dyn_o )
Yesod/PasswordStore.hs:166:31: Warning:
Defaulting the following constraint(s) to type ‘Integer’
(Integral b0)
arising from a use of ‘^’ at Yesod/PasswordStore.hs:166:31
(Num b0)
arising from the literal ‘32’ at Yesod/PasswordStore.hs:166:32-33
In the first argument of ‘(-)’, namely ‘2 ^ 32’
In the first argument of ‘(*)’, namely ‘(2 ^ 32 - 1)’
In the second argument of ‘(>)’, namely ‘(2 ^ 32 - 1) * hLen’
Yesod/PasswordStore.hs:419:1: Warning:
Defined but not used: ‘toStrict’
Yesod/PasswordStore.hs:422:1: Warning:
Defined but not used: ‘fromStrict’
[ 2 of 12] Compiling Yesod.Auth.Message ( Yesod/Auth/Message.hs, dist/build/Yesod/Auth/Message.dyn_o )
Yesod/Auth/Message.hs:23:1: Warning:
The import of ‘mappend’ from module ‘Data.Monoid’ is redundant
Yesod/Auth/Message.hs:698:1: Warning:
Defined but not used: ‘croatianMessage’
Yesod/Auth/Message.hs:459:1: Warning:
Pattern match(es) are overlapped
In an equation for ‘finnishMessage’: finnishMessage Password = ...
Yesod/Auth/Message.hs:459:1: Warning:
Pattern match(es) are non-exhaustive
In an equation for ‘finnishMessage’:
Patterns not matched: CurrentPassword
[ 3 of 12] Compiling Yesod.Auth.Routes ( Yesod/Auth/Routes.hs, dist/build/Yesod/Auth/Routes.dyn_o )
[ 4 of 12] Compiling Yesod.Auth ( Yesod/Auth.hs, dist/build/Yesod/Auth.dyn_o )
ghc: panic! (the 'impossible' happened)
(GHC version 7.10.3 for x86_64-apple-darwin):
Loading temp shared object failed: dlopen(/var/folders/40/5tyzcx2s1h77jgncprg4zn6w0000gn/T/ghc32300_0/libghc_15.dylib, 5): no suitable image found. Did find:
/var/folders/40/5tyzcx2s1h77jgncprg4zn6w0000gn/T/ghc32300_0/libghc_15.dylib: malformed mach-o: load commands size (36416) > 32768
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
