Am Dienstag 20 April 2010 18:59:23 schrieb C K Kashyap:
Hi Ivan, I tried doing
cabal install "parsec >= 3" --reinstall --enable-library-profiling
This complained about bytestring ... so I did this -
cabal install "bytestring" --reinstall --enable-library-profiling
And this complained about base - Data/ByteString.hs:278:7: Could not find module `GHC.ST': Perhaps you haven't installed the profiling libraries for package `base'? Use -v to see a list of the files searched for. cabal: Error: some packages failed to install: bytestring-0.9.1.5 failed during the building phase. The exception was: exit: ExitFailure 1 [kashyap@trinity318 ~]$ cabal install "base" --reinstall --enable-library-profiling Resolving dependencies... cabal: internal error: impossible
Am I missing something?
You cannot reinstall or upgrade core libs (basically, what comes with the compiler). If your GHC came from a system package (and I think the binaries from the GHC page include profiling libs and they're built by default when building GHC from source, so you wouldn't have that problem), you probably don't have installed the package with the profiling libraries, something like yum/apt-get install libghc??-prof should get you the profiling libraries for base, bytestring and a few others, then cabal install "parsec >= 3" --reinstall --enable-library-profiling should work.