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#| Copyright (C) 2025 Peter McGoron
 |
 | This program 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.
 |
 | This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
 |#

(define-module (mcgoron guix gauche)
  #:use-module (guix packages)
  #:use-module (gnu packages scheme)
  #:use-module (guix gexp))

(define-public gauche-abi-version
  (let* ((version (string-split (package-version gauche) #\.))
         (major (string->number (car version)))
         (minor (string->number (list-ref version 1)))
         (patch (string->number (list-ref version 2))))
    (cond
      ((and (= major 0) (= minor 9) (= patch 10))
       "0.97")
      ((and (= major 0) (= minor 9) (> patch 11))
       "0.98")
      (else (error 'gauche-abi-version "unknown gauche version: patch me!"
                   major minor patch)))))

(define-public gauche-lib-dir
  (string-append "share/gauche-" gauche-abi-version "/site/lib"))

;;; TODO: machine triple
(define-public gauche-binlib-dir
  (string-append "lib/gauche-" gauche-abi-version "/site/x86_64-unknown-linux-gnu"))

(define-public gauche-with-path
  (package
   (inherit gauche)
   (name "gauche-with-path")
   (native-search-paths
    (list (search-path-specification
           (variable "GAUCHE_LOAD_PATH")
           (files (list gauche-lib-dir)))
          (search-path-specification
           (variable "GAUCHE_DTNLOAD_PATH")
           (files (list gauche-lib-dir)))))))