gnu: Add ghc.

* gnu/packages/haskell.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.

2 files changed, 232 insertions, 0 deletions

diff --git a/gnu-system.am b/gnu-system.am
index 5d981cb8bf..b65c249fc7 100644
--- a/gnu-system.am
+++ b/gnu-system.am
@@ -145,6 +145,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/guile-wm.scm			\
   gnu/packages/gv.scm				\
   gnu/packages/gxmessage.scm			\
+  gnu/packages/haskell.scm			\
   gnu/packages/hugs.scm				\
   gnu/packages/hurd.scm				\
   gnu/packages/icu4c.scm			\
diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
new file mode 100644
index 0000000000..04c69a8dca
--- /dev/null
+++ b/gnu/packages/haskell.scm
@@ -0,0 +1,231 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages haskell)
+  #:use-module (ice-9 regex)
+  #:use-module (guix licenses)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix utils)
+  #:use-module (guix build-system gnu)
+  #:use-module (gnu packages perl)
+  #:use-module (gnu packages elf)
+  #:use-module (gnu packages bootstrap)
+  #:use-module (gnu packages ghostscript)
+  #:use-module (gnu packages libffi)
+  #:use-module (gnu packages libedit)
+  #:use-module (gnu packages multiprecision)
+  #:use-module (gnu packages ncurses)
+  #:use-module (gnu packages python))
+
+;; We use bootstrap binaries with a fix version which can be used to build
+;; more versions of the GHC compiler.
+(define ghc-bootstrap-7.8.4
+  (origin
+    (method url-fetch)
+    (uri (string-append "https://www.haskell.org/ghc/dist/"
+                        "7.8.4/ghc-7.8.4-"
+                        (if (string-match "x86_64" (%current-system))
+                            "x86_64"
+                            "i386")
+                        "-unknown-linux-deb7.tar.xz"))
+    (sha256
+     (base32
+      (if (string-match "x86_64" (%current-system))
+          "13azsl53xgj20mi1hj9x0xb32vvcvs6cpmvwx6znxhas7blh0bpn"
+          "0wj5s435j0zgww70bj1d3f6wvnnpzlxwvwcyh2qv4qjq5z8j64kg")))))
+
+;; 43 tests out of 3965 fail.
+;;
+;; Most of them do not appear to be serious:
+;;
+;; - some tests generate files referring to "/bin/sh" and "/bin/ls". I've not
+;;   figured out how these references are generated.
+;;
+;; - Some tests allocate more memory than expected (ca. 3% above upper limit)
+;;
+;; - Some tests try to load unavailable libriries: Control.Concurrent.STM,
+;;   Data.Vector, Control.Monad.State.
+;;
+;; - Test posix010 tries to check the existence of a user on the system:
+;;   getUserEntryForName: does not exist (no such user)
+(define-public ghc
+  (package
+    (name "ghc")
+    (version "7.8.4")
+    (source
+     (origin
+      (method url-fetch)
+      (uri (string-append "https://www.haskell.org/ghc/dist/"
+                          version "/" name "-" version "-src.tar.xz"))
+      (sha256
+       (base32
+        "1i4254akbb4ym437rf469gc0m40bxm31blp6s1z1g15jmnacs6f3"))))
+    (build-system gnu-build-system)
+    (supported-systems '("i686-linux" "x86_64-linux"))
+    (outputs '("out" "doc"))
+    (inputs
+     `(("gmp" ,gmp)
+       ("ncurses" ,ncurses)
+       ("libffi" ,libffi)
+       ("libedit" ,libedit)
+       ("ghc-testsuite"
+        ,(origin
+           (method url-fetch)
+           (uri (string-append
+                 "https://www.haskell.org/ghc/dist/"
+                 version "/" name "-" version "-testsuite.tar.xz"))
+           (sha256
+            (base32
+             "0q95whf87y4mxjzwzy899g7z7l9pazq4si6iciyhxkcdhqq2ycyh"))))))
+    (native-inputs
+     `(("perl" ,perl)
+       ("python" ,python-2)                ; for tests (fails with python-3)
+       ("ghostscript" ,ghostscript)        ; for tests
+       ("patchelf" ,patchelf)
+       ;; GHC is built with GHC. Therefore we need bootstrap binaries.
+       ("ghc-binary" ,ghc-bootstrap-7.8.4)))
+    (arguments
+     `(#:test-target "test"
+       ;; We get a smaller number of test failures by disabling parallel test
+       ;; execution.
+       #:parallel-tests? #f
+       #:modules ((guix build gnu-build-system)
+                  (guix build utils)
+                  (guix build rpath)
+                  (srfi srfi-26)
+                  (srfi srfi-1))
+       #:imported-modules ((guix build gnu-build-system)
+                           (guix build utils)
+                           (guix build rpath))
+       #:configure-flags
+       (list
+        (string-append "--with-gmp-libraries="
+                       (assoc-ref %build-inputs "gmp") "/lib")
+        (string-append "--with-gmp-includes="
+                       (assoc-ref %build-inputs "gmp") "/include")
+        "--with-system-libffi"
+        (string-append "--with-ffi-libraries="
+                       (assoc-ref %build-inputs "libffi") "/lib")
+        (string-append "--with-ffi-includes="
+                       (assoc-ref %build-inputs "libffi") "/include"))
+       ;; FIXME: The user-guide needs dblatex, docbook-xsl and docbook-utils.
+       ;; Currently we do not have the last one.
+       ;; #:make-flags
+       ;; (list "BUILD_DOCBOOK_HTML = YES")
+       #:phases
+       (let* ((ghc-bootstrap-path
+               (string-append (getcwd) "/" ,name "-" ,version "/ghc-bin"))
+              (ghc-bootstrap-prefix
+               (string-append ghc-bootstrap-path "/usr" )))
+         (alist-cons-after
+          'unpack-bin 'unpack-and-fix-testsuite
+          (lambda* (#:key inputs outputs #:allow-other-keys)
+            (with-directory-excursion ".."
+              (copy-file (assoc-ref inputs "ghc-testsuite")
+                         "ghc-testsuite.tar.xz")
+              (system* "tar" "xvf" "ghc-testsuite.tar.xz"))
+            ;; We need to install an UTF-8 locale for the tests to produce results
+            ;; identical to the expected ones.
+            (system* "localedef" "--no-archive"
+                     "--prefix" (getcwd) "-i" "en_US"
+                     "-f" "UTF-8" "./en_US.UTF-8")
+            (setenv "LOCPATH" (getcwd))
+            (setenv "LC_ALL" "en_US.UTF-8")
+            (substitute*
+                (list "testsuite/timeout/Makefile"
+                      "testsuite/timeout/timeout.py"
+                      "testsuite/timeout/timeout.hs"
+                      "testsuite/tests/rename/prog006/Setup.lhs"
+                      "testsuite/tests/programs/life_space_leak/life.test")
+              (("/bin/sh") (which "sh"))
+              (("/bin/rm") "rm"))
+            #t)
+          (alist-cons-after
+           'unpack 'unpack-bin
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (mkdir-p ghc-bootstrap-prefix)
+             (with-directory-excursion ghc-bootstrap-path
+               (copy-file (assoc-ref inputs "ghc-binary")
+                          "ghc-bin.tar.xz")
+               (zero? (system* "tar" "xvf" "ghc-bin.tar.xz"))))
+           (alist-cons-before
+            'install-bin 'configure-bin
+            (lambda* (#:key inputs outputs #:allow-other-keys)
+              (let* ((binaries
+                      (list
+                       "./utils/ghc-pwd/dist-install/build/tmp/ghc-pwd"
+                       "./utils/hpc/dist-install/build/tmp/hpc"
+                       "./utils/haddock/dist/build/tmp/haddock"
+                       "./utils/hsc2hs/dist-install/build/tmp/hsc2hs"
+                       "./utils/runghc/dist-install/build/tmp/runghc"
+                       "./utils/ghc-cabal/dist-install/build/tmp/ghc-cabal"
+                       "./utils/hp2ps/dist/build/tmp/hp2ps"
+                       "./utils/ghc-pkg/dist-install/build/tmp/ghc-pkg"
+                       "./utils/unlit/dist/build/tmp/unlit"
+                       "./ghc/stage2/build/tmp/ghc-stage2"))
+                     (gmp (assoc-ref inputs "gmp"))
+                     (gmp-lib (string-append gmp "/lib"))
+                     (gmp-include (string-append gmp "/include"))
+                     (ncurses-lib
+                      (string-append (assoc-ref inputs "ncurses") "/lib"))
+                     (ld-so (string-append (assoc-ref inputs "libc")
+                                           ,(glibc-dynamic-linker)))
+                     (libtinfo-dir
+                      (string-append ghc-bootstrap-prefix
+                                     "/lib/ghc-7.8.4/terminfo-0.4.0.0")))
+                (with-directory-excursion
+                    (string-append ghc-bootstrap-path "/" ,name "-" ,version)
+                  (setenv "CONFIG_SHELL" (which "bash"))
+                  (setenv "LD_LIBRARY_PATH" gmp-lib)
+                  ;; The binaries have "/lib64/ld-linux-x86-64.so.2" hardcoded.
+                  (for-each
+                   (cut system* "patchelf" "--set-interpreter" ld-so <>)
+                   binaries)
+                  ;; The binaries include a reference to libtinfo.so.5 which
+                  ;; is a subset of libncurses.so.5.  We create a symlink in a
+                  ;; directory included in the bootstrap binaries rpath.
+                  (mkdir-p libtinfo-dir)
+                  (symlink
+                   (string-append ncurses-lib "/libncursesw.so."
+                                  ,(version-major+minor
+                                    (package-version ncurses)))
+                   (string-append libtinfo-dir "/libtinfo.so.5"))
+                  (setenv "PATH"
+                          (string-append (getenv "PATH") ":"
+                                         ghc-bootstrap-prefix "/bin"))
+                  (system*
+                   (string-append (getcwd) "/configure")
+                   (string-append "--prefix=" ghc-bootstrap-prefix)
+                   (string-append "--with-gmp-libraries=" gmp-lib)
+                   (string-append "--with-gmp-includes=" gmp-include)))))
+            (alist-cons-before
+             'configure 'install-bin
+             (lambda* (#:key inputs outputs #:allow-other-keys)
+               (with-directory-excursion
+                   (string-append ghc-bootstrap-path "/" ,name "-" ,version)
+                 (zero? (system* "make" "install"))))
+             %standard-phases)))))))
+    (home-page "https://www.haskell.org/ghc")
+    (synopsis "The Glasgow Haskell Compiler")
+    (description
+     "The Glasgow Haskell Compiler (GHC) is a state-of-the-art compiler and
+interactive environment for the functional language Haskell.")
+    (license bsd-3)))
+
+;;; haskell.scm ends here