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-rw-r--r--guix/build/rpath.scm59
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diff --git a/guix/build/rpath.scm b/guix/build/rpath.scm
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-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013 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 rpath)
- #:use-module (ice-9 popen)
- #:use-module (ice-9 rdelim)
- #:export (%patchelf
- file-rpath
- augment-rpath))
-
-;;; Commentary:
-;;;
-;;; Tools to manipulate the RPATH and RUNPATH of ELF binaries. Currently they
-;;; rely on PatchELF.
-;;;
-;;; Code:
-
-(define %patchelf
- ;; The `patchelf' command.
- (make-parameter "patchelf"))
-
-(define %not-colon
- (char-set-complement (char-set #\:)))
-
-(define (file-rpath file)
- "Return the RPATH (or RUNPATH) of FILE as a list of directory names, or #f
-on failure."
- (let* ((p (open-pipe* OPEN_READ (%patchelf) "--print-rpath" file))
- (l (read-line p)))
- (and (zero? (close-pipe p))
- (string-tokenize l %not-colon))))
-
-(define (augment-rpath file dir)
- "Add DIR to the front of the RPATH and RUNPATH of FILE. Return the new
-RPATH as a list, or #f on failure."
- (let* ((rpath (or (file-rpath file) '()))
- (rpath* (cons dir rpath)))
- (format #t "~a: changing RPATH from ~s to ~s~%"
- file rpath rpath*)
- (and (zero? (system* (%patchelf) "--set-rpath"
- (string-join rpath* ":") file))
- rpath*)))
-
-;;; rpath.scm ends here