* gnu/packages/haskell.scm (ghc-alex): New variable.
---
gnu/packages/haskell.scm | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 60bbb41..6c5833c 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -497,6 +497,35 @@ are no options for manipulating the reflected expressions
beyond showing
them.")
(license bsd-3)))
+(define-public ghc-alex
+ (package
+ (name "ghc-alex")
+ (version "3.1.4")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (string-append
+ "http://hackage.haskell.org/package/alex/alex-";
+ version
+ ".tar.gz"))
+ (sha256
+ (base32
+ "17x13nbbr79xgdlzywjqw19vcl6iygjnssjnxnajgijkv764wknn"))))
+ (build-system haskell-build-system)
+ (arguments `(#:tests? #f)) ; FIXME: Tests broken for GHC 7.10. Fixed
+ ; upstream, see
+ ; <https://github.com/simonmar/alex/issues/62>
+ (inputs `(("ghc-quickcheck" ,ghc-quickcheck)))
+ (home-page "http://www.haskell.org/alex/";)
+ (synopsis
+ "Tool for generating lexical analysers in Haskell")
+ (description
+ "Alex is a tool for generating lexical analysers in Haskell. It takes a
+description of tokens based on regular expressions and generates a Haskell
+module containing code for scanning text efficiently. It is similar to the
+tool lex or flex for C/C++.")
+ (license bsd-3)))
+
(define-public ghc-cmdargs
(package
(name "ghc-cmdargs")
--
2.6.1
