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Daniel Gröber 45d6b7d67a Guess right sandbox pkg-db path on ghc version mismatch 
If cabal.sandbox.config contains a "package-db:" declaration with the
wrong path and only the ghc version is wrong, for example:

```
package-db: <DIR>/.cabal-sandbox/x86_64-linux-ghc-7.8.3-packages.conf.d
```

Even though the user is using 7.10.0.20141222 `cabal repl` will correct
this and pass

```
-package-db <DIR>/.cabal-sandbox/x86_64-linux-ghc-7.10.0.20141222-packages.conf.d
```

to ghci, so obviously Cabal/cabal-install is doing some magic.

Conflicts:
	Language/Haskell/GhcMod/PathsAndFiles.hs
2015-02-08 12:43:25 +01:00
doc adding docs in the piki format. 2014-11-19 09:07:34 +09:00
elisp Merge pull request #409 from iquiw/master 2014-12-01 11:48:42 +09:00
Language/Haskell Guess right sandbox pkg-db path on ghc version mismatch 2015-02-08 12:43:25 +01:00
scripts Add bump.sh script to master branch too 2014-12-31 22:57:53 +01:00
src Fix documentation for root command 2015-02-07 15:22:10 +01:00
test Fix findCabalFile 2014-11-03 00:45:27 +01:00
test-elisp adding test cases for elisp. 2014-04-23 14:51:02 +09:00
.ghci .ghci for ghci-friendliness (testing) 2012-01-22 20:16:22 -08:00
.gitignore Add add-source-timestamps to gitignore 2014-05-04 04:57:38 +02:00
.travis.yml travis: Create empty ChangeLog before running cabal sdist 2014-09-12 22:23:48 +02:00
CodingStyle adding CodingStyle. 2014-08-12 15:00:56 +09:00
ghc-mod.cabal Support where clauses, let bindings and case expressions in case splitting (fixes #395) 2014-11-03 00:15:12 +01:00
hcar-ghc-mod.tex hcar 2014-10-08 16:30:23 +02:00
LICENSE adding README and LICENSE. 2010-03-10 12:13:03 +09:00
README.md Add installation note about Nix 2014-12-16 21:34:04 +01:00
Setup.hs adding Setup.hs. 2010-04-03 00:16:22 +09:00

README.md

Happy Haskell Programming

Build Status

Please read: http://www.mew.org/~kazu/proj/ghc-mod/

Using the stable version

The Emacs front-end is available from stable MELPA. This package should always be compatible with the latest version of ghc-mod from hackage.

To use stable stable MELPA add this to your .emacs:

(require 'package)
(add-to-list 'package-archives
	     '("melpa" . "http://melpa-stable.milkbox.net/packages/"))
(package-initialize)

With this configuration you can install the Emacs front end from MELPA (the package is called ghc there, not ghc-mod) and install the ghc-mod/ghc-modi binaries from hackage by doing:

% cabal update && cabal install ghc-mod

Nix & NixOS

The installation is a little more involved in this environment as Nix needs some ugly hacks to get packages using the GHC API to work, please refer to this stackoverflow answer:

http://stackoverflow.com/a/24228830

Using the development version

The easiest way to hack on ghc-mod is compile it, then add dist/build/ghc-mod and dist/build/ghc-modi to your PATH and add the elisp/ directory to your Emacs load-path.

Make sure you're not using the MELPA version of ghc.el otherwise you might get all sorts of nasty conflicts.

IRC

If you have any problems, suggestions, comments swing by #ghc-mod on Freenode.