gnu: make-bootstrap: Produce the correct %glibc-bootstrap-tarball for Hurd systems.

* gnu/packages/make-bootstrap.scm (%glibc-bootstrap-tarball): Make it a procedure.
  (%glibc-stripped): Make it a procedure and move the kernel specific part from
  here to ...
* guix/build/make-bootstrap.scm (make-stripped-libc): ... here. New file.
* Makefile.am (MODULES): Add it.

1 files changed, 84 insertions, 0 deletions

diff --git a/guix/build/make-bootstrap.scm b/guix/build/make-bootstrap.scm
new file mode 100644
index 0000000000..bc4c0e3d5f
--- /dev/null
+++ b/guix/build/make-bootstrap.scm
@@ -0,0 +1,84 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2015 Manolis Fragkiskos Ragkousis <manolis837@gmail.com>
+;;; Copyright © 2015 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 make-bootstrap)
+  #:use-module (srfi srfi-1)
+  #:use-module (srfi srfi-11)
+  #:use-module (srfi srfi-19)
+  #:use-module (srfi srfi-26)
+  #:use-module (guix build utils)
+  #:export (make-stripped-libc))
+
+;; Commentary:
+;;
+;; This module provides facilities to build the bootstrap binaries.
+;;
+;; Code:
+
+(define (make-stripped-libc output libc kernel-headers)
+  "Copy to OUTPUT the subset of LIBC and KERNEL-HEADERS that is needed
+when producing a bootstrap libc."
+
+  (define (copy-mach-headers output kernel-headers)
+    (let* ((incdir (string-append output "/include")))
+      (copy-recursively (string-append libc "/include") incdir)
+
+      (copy-recursively (string-append kernel-headers "/include/mach")
+                        (string-append incdir "/mach"))
+      #t))
+  
+  (define (copy-linux-headers output kernel-headers)
+    (let* ((incdir (string-append output "/include")))
+      (copy-recursively (string-append libc "/include") incdir)
+
+      ;; Copy some of the Linux-Libre headers that glibc headers
+      ;; refer to.
+      (mkdir (string-append incdir "/linux"))
+      (for-each (lambda (file)
+                  (install-file (string-append kernel-headers "/include/linux/" file)
+                                (string-append incdir "/linux")))
+                '("limits.h" "errno.h" "socket.h" "kernel.h"
+                  "sysctl.h" "param.h" "ioctl.h" "types.h"
+                  "posix_types.h" "stddef.h"))
+
+      (copy-recursively (string-append kernel-headers "/include/asm")
+                        (string-append incdir "/asm"))
+      (copy-recursively (string-append kernel-headers "/include/asm-generic")
+                        (string-append incdir "/asm-generic"))
+      #t))
+
+  (define %libc-object-files-rx "^(crt.*|ld.*|lib(c|m|dl|rt|pthread|nsl|\
+util).*\\.so(\\..*)?|lib(machuser|hurduser).so.*|libc(rt|)_nonshared\\.a)$")
+
+  (setvbuf (current-output-port) _IOLBF)
+  (let* ((libdir (string-append output "/lib")))
+    (mkdir-p libdir)
+    (for-each (lambda (file)
+                (let ((target (string-append libdir "/"
+                                             (basename file))))
+                  (copy-file file target)
+                  (remove-store-references target)))
+              (find-files (string-append libc "/lib") %libc-object-files-rx))
+    #t)
+
+    (if (directory-exists? (string-append kernel-headers "/include/mach"))
+        (copy-mach-headers output kernel-headers)
+        (copy-linux-headers output kernel-headers)))
+
+