Abstract build systems.

* Makefile.am (MODULES): Add `guix/build-system.scm' and
  `guix/build-system/gnu.scm'.  Remove `guix/gnu-build-system.scm'.

* guix/build-system.scm: New file.
* guix/gnu-build-system.scm: Rename to...
* guix/build-system/gnu.scm: ... this.
  (gnu-build-system): New variable.

* tests/builders.scm: Adjust `use-module' clauses.
  ("gnu-build-system"): New test.

1 files changed, 73 insertions, 0 deletions

diff --git a/guix/build-system/gnu.scm b/guix/build-system/gnu.scm
new file mode 100644
index 0000000000..e9eb02f251
--- /dev/null
+++ b/guix/build-system/gnu.scm
@@ -0,0 +1,73 @@
+;;; Guix --- Nix package management from Guile.         -*- coding: utf-8 -*-
+;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of Guix.
+;;;
+;;; 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.
+;;;
+;;; 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 Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix build-system gnu)
+  #:use-module (guix store)
+  #:use-module (guix utils)
+  #:use-module (guix derivations)
+  #:use-module (guix build-system)
+  #:use-module (srfi srfi-1)
+  #:export (gnu-build
+            gnu-build-system))
+
+;; Commentary:
+;;
+;; Standard build procedure for packages using the GNU Build System or
+;; something compatible ("./configure && make && make install").
+;;
+;; Code:
+
+(define %standard-inputs
+  (map (lambda (name)
+         (list name (nixpkgs-derivation name)))
+       '("gnutar" "gzip" "bzip2" "xz" "diffutils" "patch"
+         "coreutils" "gnused" "gnugrep" "bash"
+         "gcc" "binutils" "gnumake" "glibc")))
+
+(define* (gnu-build store name source inputs
+                    #:key (outputs '("out")) (configure-flags '())
+                    (make-flags '()) (phases '%standard-phases)
+                    (system (%current-system)))
+  "Return a derivation called NAME that builds from tarball SOURCE, with
+input derivation INPUTS, using the usual procedure of the GNU Build System."
+  (define builder
+    `(begin
+       (use-modules (guix build gnu-build-system))
+       (gnu-build #:source ,(if (derivation-path? source)
+                                (derivation-path->output-path source)
+                                source)
+                  #:outputs %outputs
+                  #:inputs %build-inputs
+                  #:phases ,phases
+                  #:configure-flags ',configure-flags
+                  #:make-flags ',make-flags)))
+
+  (build-expression->derivation store name system
+                                builder
+                                `(("source" ,source)
+                                  ,@inputs
+                                  ,@%standard-inputs)
+                                #:outputs outputs
+                                #:modules '((guix build gnu-build-system)
+                                            (guix build utils))))
+
+(define gnu-build-system
+  (build-system (name 'gnu)
+                (description
+                 "The GNU Build System—i.e., ./configure && make && make install")
+                (build gnu-build)))             ; TODO: add `gnu-cross-build'