Re^4: Installing Pugs via CPAN shell (How to call specific ghc version)

[neversaint]

Dear shmem,

Look for hsc2hs in ~/.ghc/bin and make a symlink to it as hsc2hs-6.4.1

What's the command with symlink to do that? Sorry, I'm not experienced with symlink.

Or undefine the environment variable GHC and prepend your haskell directory to your path: PATH=~/.ghc/bin:$PATH so that the right haskell compiler is found (and the plain hsc2hs).

I already have that in my .bash_profile:

export PATH=$PATH:$HOME/.octave/bin:$HOME/.ghc/bin:

And my ~/.ghc/bin directory has this:

[neversaint@voyager bin]$ pwd
/home/neversaint/.ghc/bin
[neversaint@voyager bin]$ ll -h
total 700K
lrwxrwxrwx  1 neversaint neversaint    9 Oct 18 17:28 ghc -> ghc-6.4.1
-rwxr-xr-x  1 neversaint neversaint  334 Oct 18 17:28 ghc-6.4.1
lrwxrwxrwx  1 neversaint neversaint   10 Oct 18 17:28 ghci -> ghci-6.4
+.1
-rwxr-xr-x  1 neversaint neversaint  349 Oct 18 17:28 ghci-6.4.1
lrwxrwxrwx  1 neversaint neversaint   13 Oct 18 17:28 ghc-pkg -> ghc-p
+kg-6.4.1
-rwxr-xr-x  1 neversaint neversaint  373 Oct 18 17:28 ghc-pkg-6.4.1
-rwxr-xr-x  1 neversaint neversaint 7.2K Oct 18 17:28 ghcprof
-rwxr-xr-x  1 neversaint neversaint  33K Oct 18 17:28 hp2ps
-rwxr-xr-x  1 neversaint neversaint  583 Oct 18 17:28 hsc2hs
-rwxr-xr-x  1 neversaint neversaint 313K Oct 18 17:28 runghc
-rwxr-xr-x  1 neversaint neversaint 313K Oct 18 17:28 runhaskell

[mhacker]

No, you don't have ~/.ghc/bin prepended to your $PATH. You have it appended instead, which is your original problem. When the systems looks for the "ghc" binary it will find the older install since it comes first in your path. Try this instead:

export PATH=$HOME/.ghc/bin:$PATH

and then try again (without exporting the GHC variable, since it should now find the correct version through the PATH variable).