;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.net>
;;;
;;; 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 tbb)
  #:use-module (guix packages)
  #:use-module (guix licenses)
  #:use-module (guix download)
  #:use-module (guix utils)
  #:use-module (guix build-system gnu)
  #:use-module (gnu packages))

(define-public tbb
  (package
    (name "tbb")
    (version "4.3.2")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://www.threadingbuildingblocks.org/sites/default"
                    "/files/software_releases/source/"
                    "tbb43_20141204oss_src.tgz"))
              (sha256
               (base32
                "0jsczl99jfgj47kj7c4sd4fk7v3rbaiax1ng9ypykz1hh0lrrsws"))))
    (build-system gnu-build-system)
    (arguments
     `(#:test-target "test"
       #:phases (alist-delete
                 'configure
                 (alist-cons-before
                  'build 'set-build-path
                  (lambda _
                    (substitute* "build/common.inc"
                      (("export tbb_build_prefix.+$")
                       "export tbb_build_prefix?=guix\n")))
                  (alist-replace
                   'install
                   (lambda _
                     (let ((lib (string-append %output "/lib"))
                           (doc (string-append %output "/doc"))
                           (examples (string-append %output "/examples"))
                           (include (string-append %output "/include")))
                       (mkdir-p lib)
                       (for-each
                        (lambda (f)
                          (copy-file f
                                     (string-append lib "/"
                                                    (basename f))))
                        (find-files "build/guix_release" "\\.so"))
                       (copy-recursively "examples" examples)
                       (copy-recursively "include" include)
                       (copy-recursively "doc" doc)
                       #t))
                   %standard-phases)))))
    (home-page "https://www.threadingbuildingblocks.org")
    (synopsis "The Threading Building Blocks library abstracts low-level
threading details")
    (description
     "Threading Building Blocks (TBB) is a C++ runtime library that abstracts
the low-level threading details necessary for optimal multi-core performance.
It uses common C++ templates and coding style to eliminate tedious threading
implementation work.

TBB requires fewer lines of code to achieve parallelism than other threading
models.  The applications you write are portable across platforms.  Since the
library is also inherently scalable, no code maintenance is required as more
processor cores become available.")
    ;; GPL2 with exceptions
    (license gpl2)))