Hi all, I'm trying to install hmatrix-static using Cabal. I installed the Haskell Platform for Mac yesterday from hackage.haskell.org/platform. I've been having build problems, and one of them is with haskell-src-exts. The output of cabal install haskell-src-exts -v ends in: Building haskell-src-exts-1.9.0... Building library... Creating dist/build (and its parents) /usr/bin/ghc --make -package-name haskell-src-exts-1.9.0 -hide-all-packages -fbuilding-cabal-package -i -idist/build -isrc -idist/build/autogen -Idist/build/autogen -Idist/build -optP-DBASE4 -optP-include -optPdist/build/autogen/cabal_macros.h -odir dist/build -hidir dist/build -stubdir dist/build -package-id array-0.3.0.0-307c95c424058c7b6bd041b809e52ef3 -package-id base-4.2.0.0-0120a3650a6376da8d1b6a4e48a2973a -package-id cpphs-1.11-20b9349b60ba9e187ce20bacef8124a5 -package-id pretty-1.0.1.1-2bfa34c699efff7eed4d6297a2dac12d -O Language.Haskell.Exts Language.Haskell.Exts.Parser Language.Haskell.Exts.Pretty Language.Haskell.Exts.Syntax Language.Haskell.Exts.Extension Language.Haskell.Exts.Build Language.Haskell.Exts.Fixity Language.Haskell.Exts.Comments Language.Haskell.Exts.SrcLoc Language.Haskell.Exts.Annotated Language.Haskell.Exts.Annotated.Syntax Language.Haskell.Exts.Annotated.Fixity Language.Haskell.Exts.Annotated.Build Language.Haskell.Exts.Annotated.ExactPrint Language.Haskell.Exts.Annotated.Simplify Language.Haskell.Exts.ExtScheme Language.Haskell.Exts.ParseMonad Language.Haskell.Exts.ParseSyntax Language.Haskell.Exts.Lexer Language.Haskell.Exts.ParseUtils Language.Haskell.Exts.InternalParser <command line>: cannot satisfy -package-id cpphs-1.11-20b9349b60ba9e187ce20bacef8124a5: cpphs-1.11-20b9349b60ba9e187ce20bacef8124a5 is unusable due to missing or recursive dependencies: haskell98-1.0.1.1-0fdaf3b26bc38c43ce8371edf538dbf6 (use -v for more information) cabal: Error: some packages failed to install: haskell-src-exts-1.9.0 failed during the building phase. The exception was: ExitFailure 1 However, cabal install cpphs --reinstall works fine. Any help getting past this would be much appreciated. Thanks, Anand