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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 Maxime Devos <maximedevos@telenet.be>
;;; Copyright © 2022 Olivier Dion <olivier.dion@polymtl.ca>
;;;
;;; 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 absolute-inclusions)
#:use-module (guix build utils)
#:use-module (ice-9 match)
#:use-module (rnrs exceptions)
#:export (absolute-inclusions patch-header-inclusions))
(define (absolute-inclusions files header-locations)
(substitute* files
(("^[ \t]*#[ \t]*include[ \t]*<(.*)>[ \t]*" original header-name)
(guard (c ((search-error? c) original))
(format #f "#include <~a>"
(search-input-file header-locations
(string-append "include/" header-name)))))))
(define header-file?
;; See gcc(1) for the list of suffixes.
(let ((suffixes (list "h" "hh" "H" "hp" "hxx" "hpp" "HPP" "h++" "tcc")))
(file-name-predicate
(format #f "\\.(~a)$" (string-join suffixes "|" 'infix)))))
(define (excluded-input? input)
;; Exclude glibc to avoid increasing the closure size when a
;; static library + binary is build. Likewise, exclude
;; linux-libre-headers.
(match input
((_ . store-item)
(or (file-exists? (string-append store-item "/include/stdlib.h"))
(directory-exists? (string-append store-item "/include/linux"))))))
(define* (patch-header-inclusions #:key inputs outputs #:allow-other-keys)
"Patch inclusions in C headers in OUTPUTS to use absolute file names."
(define header-locations
(filter (negate excluded-input?) (append outputs inputs)))
(for-each (match-lambda
((_ . output)
(absolute-inclusions
(find-files (string-append output "/include")
header-file?)
header-locations)))
outputs))
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