[PATCH 18/21] gnu: Add c2hs.

[Paul van der Walt]

* gnu/packages/haskell.scm (c2hs): New variable.
---
 gnu/packages/haskell.scm | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index 76ff287..da8e932 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -20,7 +20,7 @@
 
 (define-module (gnu packages haskell)
   #:use-module (ice-9 regex)
-  #:use-module ((guix licenses) #:select (bsd-3 lgpl2.1 lgpl2.1+ gpl3+ expat))
+  #:use-module ((guix licenses) #:select (bsd-3 lgpl2.1 lgpl2.1+ gpl2 gpl3+ 
expat))
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix utils)
@@ -1444,6 +1444,39 @@ various Haskell streaming data libraries, such as 
@code{conduit} and
 @code{pipe}s.")
     (license bsd-3)))
 
+(define-public c2hs
+  (package
+    (name "c2hs")
+    (version "0.26.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "http://hackage.haskell.org/package/c2hs/c2hs-";
+             version
+             ".tar.gz"))
+       (sha256
+        (base32
+         "1ga4s91lwdq3xfm09l6p9j65miry1qlwdzjhng00ycb9vjlifpfi"))))
+    (build-system haskell-build-system)
+    (arguments
+     `(#:tests? #f)) ; FIXME: ghc-test-framework and friends are not yet
+                     ; packaged.
+    (inputs
+     `(("ghc-language-c" ,ghc-language-c)
+       ("ghc-dlist" ,ghc-dlist)
+       ("ghc-shelly" ,ghc-shelly)
+       ("ghc-text" ,ghc-text)))
+    (home-page "https://github.com/haskell/c2hs";)
+    (synopsis "C->Haskell FFI tool")
+    (description
+     "The C->Haskell tool assists in the development of Haskell bindings to C
+libraries.  It extracts interface information from C header files and
+generates Haskell code with foreign imports and marshaling.  Unlike writing
+foreign imports by hand (or using @code{hsc2hs}), this ensures that C
+functions are imported with the correct Haskell types.")
+    (license gpl2)))
+
 (define-public cpphs
   (package
     (name "cpphs")
-- 
2.6.2