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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 trivial)
#:use-module (guix store)
#:use-module (guix utils)
#:use-module (guix derivations)
#:use-module (guix packages)
#:use-module (guix build-system)
#:use-module (ice-9 match)
#:export (trivial-build-system))
(define (guile-for-build store guile system)
(match guile
((? package?)
(package-derivation store guile system))
((and (? string?) (? derivation-path?))
guile)
(#f ; the default
(let* ((distro (resolve-interface '(gnu packages commencement)))
(guile (module-ref distro 'guile-final)))
(package-derivation store guile system)))))
(define* (trivial-build store name source inputs
#:key
outputs guile system builder (modules '())
search-paths)
"Run build expression BUILDER, an expression, for SYSTEM. SOURCE is
ignored."
(build-expression->derivation store name builder
#:inputs (if source
`(("source" ,source) ,@inputs)
inputs)
#:system system
#:outputs outputs
#:modules modules
#:guile-for-build
(guile-for-build store guile system)))
(define* (trivial-cross-build store name target source inputs native-inputs
#:key
outputs guile system builder (modules '())
search-paths native-search-paths)
"Like `trivial-build', but in a cross-compilation context."
(build-expression->derivation store name builder
#:system system
#:inputs
(let ((inputs (append native-inputs inputs)))
(if source
`(("source" ,source) ,@inputs)
inputs))
#:outputs outputs
#:modules modules
#:guile-for-build
(guile-for-build store guile system)))
(define trivial-build-system
(build-system (name 'trivial)
(description
"Trivial build system, to run arbitrary Scheme build expressions")
(build trivial-build)
(cross-build trivial-cross-build)))
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