On 07/04/10 07:28, Daniel Fischer wrote:
On Sunday 04 July 2010 13:45:01 you wrote:
src/Lex.lhs:330:8: Illegal signature in pattern: Int Use -XPatternSignatures to permit it cabal: Error: some packages failed to install: hdirect-0.21.0 failed during the building phase. The exception was: exit: ExitFailure 1 ~/download/haskell/libs $ which happy /home/evansl/.cabal/bin/happy ~/download/haskell/libs $
Any ideas about how to solve this problem?
Sure. First, tell the maintainer, he might want to fix it for all.
Done.
Then, the quick fix for you, * unpack the .tar.gz * change the version in the .cabal file (my preferred method is appending a ".1" to the version number). You need that in case you want to build some library which depends on hdirect, so that cabal-install picks your bumped newer version rather than the newest version on hackage. * make it compile, e.g. by adding a field Extensions: PatternSignatures to the cabal file, or by putting a {-# LANGUAGE PatternSignatures #-} pragma to the offending file. Then run cabal install in the unpacked and modified directory. Several iterations of edit file; cabal install may be necessary.
Downloaded: http://hackage.haskell.org/packages/archive/hdirect/0.21.0/hdirect-0.21.0.ta... then unzipped and untarred it then edited hdirect.cabal by adding: Extensions: PatternSignatures Below the line: library However, still got: src/Desugar.lhs:2053:1: Warning: Pattern match(es) are non-exhaustive In a case alternative: Patterns not matched: (_, []) (_, IDL.IncludeEnd : _) (_, (IDL.IncludeStart _) : _) (_, (IDL.Pragma _) : _) ... [60 of 65] Compiling IDLToken ( src/IDLToken.lhs, dist/build/hdirect/hdirect-tmp/IDLToken.o ) [61 of 65] Compiling LexM ( src/LexM.lhs, dist/build/hdirect/hdirect-tmp/LexM.o ) [62 of 65] Compiling Lex ( src/Lex.lhs, dist/build/hdirect/hdirect-tmp/Lex.o ) src/Lex.lhs:330:8: Illegal signature in pattern: Int Use -XPatternSignatures to permit it cabal: Error: some packages failed to install: Any further help is appreciated. -regards, Larry