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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
+;;;
+;;; 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 (guix build-system cmake)
+  #:use-module (guix store)
+  #:use-module (guix utils)
+  #:use-module (guix derivations)
+  #:use-module (guix build-system)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix packages)
+  #:use-module (ice-9 match)
+  #:export (cmake-build
+            cmake-build-system))
+
+;; Commentary:
+;;
+;; Standard build procedure for packages using CMake. This is implemented as an
+;; extension of `gnu-build-system'.
+;;
+;; Code:
+
+(define* (cmake-build store name source inputs
+                     #:key (guile #f)
+                     (outputs '("out")) (configure-flags ''())
+                     (make-flags ''())
+                     (patches ''()) (patch-flags ''("--batch" "-p1"))
+                     (cmake (@ (gnu packages cmake) cmake))
+                     (out-of-source? #f)
+                     (path-exclusions ''())
+                     (tests? #t)
+                     (test-target "test")
+                     (parallel-build? #t) (parallel-tests? #f)
+                     (patch-shebangs? #t)
+                     (strip-binaries? #t)
+                     (strip-flags ''("--strip-debug"))
+                     (strip-directories ''("lib" "lib64" "libexec"
+                                           "bin" "sbin"))
+                     (phases '(@ (guix build cmake-build-system)
+                                 %standard-phases))
+                     (system (%current-system))
+                     (imported-modules '((guix build cmake-build-system)
+                                         (guix build gnu-build-system)
+                                         (guix build utils)))
+                     (modules '((guix build cmake-build-system)
+                                (guix build gnu-build-system)
+                                (guix build utils))))
+  "Build SOURCE using CMAKE, and with INPUTS. This assumes that SOURCE
+provides a 'CMakeLists.txt' file as its build system."
+  (define builder
+    `(begin
+       (use-modules ,@modules)
+       (cmake-build #:source ,(if (and source (derivation-path? source))
+                                 (derivation-path->output-path source)
+                                 source)
+                    #:system ,system
+                    #:outputs %outputs
+                    #:inputs %build-inputs
+                    #:patches ,patches
+                    #:patch-flags ,patch-flags
+                    #:phases ,phases
+                    #:configure-flags ,configure-flags
+                    #:make-flags ,make-flags
+                    #:out-of-source? ,out-of-source?
+                    #:path-exclusions ,path-exclusions
+                    #:tests? ,tests?
+                    #:test-target ,test-target
+                    #:parallel-build? ,parallel-build?
+                    #:parallel-tests? ,parallel-tests?
+                    #:patch-shebangs? ,patch-shebangs?
+                    #:strip-binaries? ,strip-binaries?
+                    #:strip-flags ,strip-flags
+                    #:strip-directories ,strip-directories)))
+
+  (define guile-for-build
+    (match guile
+      ((? package?)
+       (package-derivation store guile system))
+      ((and (? string?) (? derivation-path?))
+       guile)
+      (#f                                         ; the default
+       (let* ((distro (resolve-interface '(gnu packages base)))
+              (guile  (module-ref distro 'guile-final)))
+         (package-derivation store guile system)))))
+
+  (let ((cmake (package-derivation store cmake system)))
+    (build-expression->derivation store name system
+                                  builder
+                                  `(,@(if source
+                                          `(("source" ,source))
+                                          '())
+                                    ("cmake" ,cmake)
+                                    ,@inputs
+
+                                    ;; Keep the standard inputs of
+                                    ;; `gnu-build-system'.
+                                    ,@(standard-inputs system))
+
+                                  #:modules imported-modules
+                                  #:outputs outputs
+                                  #:guile-for-build guile-for-build)))
+
+(define cmake-build-system
+  (build-system (name 'cmake)
+                (description "The standard CMake build system")
+                (build cmake-build)))
+
+;;; cmake.scm ends here