Still trying to get ihaskell building on travis

.travis.yml

@@ -31,6 +31,7 @@ install:
  - travis_retry cabal update
  - travis_retry cabal install cpphs
  - travis_retry cabal install gtk2hs-buildtools
+ - travis_retry cabal install arithmoi==0.4.* -fllvm
 
 # Here starts the actual work to be performed for the package under test; any command which exits with a non-zero exit code causes the build to fail.
 script:

ihaskell.cabal

@@ -92,7 +92,9 @@ library
                        utf8-string          -any,
                        uuid                 >=1.3,
                        vector               -any,
-                       ipython-kernel       >=0.3
+                       ipython-kernel       >=0.3,
+                       arithmoi             ==0.4.*
+                       -- arithmoi is fixed to avoid issues with diagrams
 
   exposed-modules: IHaskell.Display
                    IHaskell.Convert

src/IHaskell/Eval/Util.hs

@@ -122,11 +122,9 @@ pprDynFlags show_all dflags =
         (ghciFlags,others)  = partition (\f -> flagSpecFlag f `elem` flgs)
                                         DynFlags.fFlags
         flgs = [ 
-#if MIN_VERSION_ghc(7,8,0)
                  Opt_PrintExplicitForalls
+#if MIN_VERSION_ghc(7,8,0)
                , Opt_PrintExplicitKinds
-#else
-                 Opt_PrintExplicitKinds
 #endif
                , Opt_PrintBindResult
                , Opt_BreakOnException