guile-zstd/zstd/config.scm.in

;;; Guile-zstd --- GNU Guile bindings to the zstd compression library.
;;; Copyright © 2020 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of Guile-zstd.
;;;
;;; Guile-zstd 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.
;;;
;;; Guile-zstd 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 Guile-zstd.  If not, see <http://www.gnu.org/licenses/>.

(define-module (zstd config)
  #:export (%zstd-library-file-name))

(define %zstd-library-file-name
  ;; 'dynamic-link' in Guile >= 3.0.2 first looks up file names literally
  ;; (hence ".so.1"), which is not the case with older versions of Guile.
  (cond-expand ((not guile-3) "@ZSTD_LIBDIR@/libzstd")
               (else
                (if (string-contains %host-type "darwin")
                    "@ZSTD_LIBDIR@/libzstd.1.dylib"
                    "@ZSTD_LIBDIR@/libzstd.so.1"))))