I also ran into a problem on Windows.
c:\>cabal install safe
Resolving dependencies...
Configuring safe-0.3.4...
Building safe-0.3.4...
Preprocessing library safe-0.3.4...
[1 of 2] Compiling Safe.Foldable ( Safe\Foldable.hs,
dist\build\Safe\Foldable.o )
Can't open perl script "C:\ghc-7.8\lib\ghc-split": No such file or directory
Failed to install safe-0.3.4
cabal: Error: some packages failed to install:
safe-0.3.4 failed during the building phase. The exception was:
ExitFailure 2
Copying "ghc-split" from the Haskell Platform into c:\ghc-7.8\lib seems to
work around the problem.
c:\>cabal install safe
Resolving dependencies...
Configuring safe-0.3.4...
Building safe-0.3.4...
Preprocessing library safe-0.3.4...
[1 of 2] Compiling Safe.Foldable ( Safe\Foldable.hs,
dist\build\Safe\Foldable.o )
[2 of 2] Compiling Safe ( Safe.hs, dist\build\Safe.o )
In-place registering safe-0.3.4...
Installing library in
C:\Users\Mike\AppData\Roaming\cabal\safe-0.3.4\ghc-7.8.20140130
Registering safe-0.3.4...
Installed safe-0.3.4
c:\>ghci
GHCi, version 7.8.20140130: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude> import Safe
Prelude Safe> readMay "1" :: Maybe Int
Loading package safe-0.3.4 ... linking ... done.
Just 1
Prelude Safe> :quit
Leaving GHCi.
On Mon, Feb 3, 2014 at 10:38 PM, Ganesh Sittampalam
Just to note a problem I encountered on Windows, which may well be user error.
I unpacked the mingw tarball and added the bin directory from it to my path. cabal install then failed with "cabal.exe: does not exist" after producing some other output.
Running with -v3 suggested that the actual problem was that the ld on my path couldn't read the .o files produced by GHC. I changed my path to also include the mingw\bin directory from the tarball, and then all was fine.
On 03/02/2014 22:35, Austin Seipp wrote:
We are pleased to announce the first release candidate for GHC 7.8.1:
http://www.haskell.org/ghc/dist/7.8.1-rc1/ http://www.haskell.org/ghc/docs/7.8.1-rc1/html/
This includes the source tarball and bindists for Windows, Linux, OS X, FreeBSD, and Solaris, on x86 and x86_64. There is a signed copy of the SHA256 hashes available (attached) using my GPG key (keyid 0x3B58D86F).
We plan to make the 7.8.1 RC2 release quite soon, as we're aware of some existing issues.
Please test as much as possible; bugs are much cheaper if we find them before the release!
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