161 lines
6.2 KiB
Scheme
161 lines
6.2 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017 Peter Mikkelsen <petermikkelsen10@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix build meson-build-system)
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#:use-module ((guix build gnu-build-system) #:prefix gnu:)
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#:use-module ((guix build glib-or-gtk-build-system) #:prefix glib-or-gtk:)
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#:use-module (guix build utils)
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#:use-module (guix build rpath)
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#:use-module (guix build gremlin)
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#:use-module (guix elf)
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#:use-module (ice-9 match)
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#:use-module (rnrs io ports)
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#:use-module (srfi srfi-1)
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#:export (%standard-phases
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meson-build))
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;; Commentary:
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;;
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;; Builder-side code of the standard meson build procedure.
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;;
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;; Code:
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(define* (configure #:key outputs configure-flags build-type
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#:allow-other-keys)
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"Configure the given package."
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(let* ((out (assoc-ref outputs "out"))
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(source-dir (getcwd))
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(build-dir "../build")
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(prefix (assoc-ref outputs "out"))
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(args `(,(string-append "--prefix=" prefix)
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,(string-append "--buildtype=" build-type)
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,@configure-flags
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,source-dir)))
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;; Meson lacks good facilities for dealing with RUNPATH, so we
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;; add the output "lib" directory here to avoid doing that in
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;; many users. Related issues:
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;; * <https://github.com/mesonbuild/meson/issues/314>
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;; * <https://github.com/mesonbuild/meson/issues/3038>
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;; * <https://github.com/NixOS/nixpkgs/issues/31222>
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(unless (getenv "LDFLAGS")
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(setenv "LDFLAGS" (string-append "-Wl,-rpath=" out "/lib")))
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(mkdir build-dir)
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(chdir build-dir)
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(zero? (apply system* "meson" args))))
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(define* (build #:key parallel-build?
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#:allow-other-keys)
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"Build a given meson package."
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(zero? (apply system* "ninja"
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(if parallel-build?
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`("-j" ,(number->string (parallel-job-count)))
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'("-j" "1")))))
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(define* (check #:key test-target parallel-tests? tests?
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#:allow-other-keys)
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(setenv "MESON_TESTTHREADS"
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(if parallel-tests?
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(number->string (parallel-job-count))
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"1"))
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(if tests?
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(zero? (system* "ninja" test-target))
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(begin
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(format #t "test suite not run~%")
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#t)))
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(define* (install #:rest args)
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(zero? (system* "ninja" "install")))
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(define* (fix-runpath #:key (elf-directories '("lib" "lib64" "libexec"
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"bin" "sbin"))
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outputs #:allow-other-keys)
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"Try to make sure all ELF files in ELF-DIRECTORIES are able to find their
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local dependencies in their RUNPATH, by searching for the needed libraries in
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the directories of the package, and adding them to the RUNPATH if needed.
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Also shrink the RUNPATH to what is needed,
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since a lot of directories are left over from the build phase of meson,
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for example libraries only needed for the tests."
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;; Find the directories (if any) that contains DEP-NAME. The directories
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;; searched are the ones that ELF-FILES are in.
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(define (find-deps dep-name elf-files)
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(map dirname (filter (lambda (file)
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(string=? dep-name (basename file)))
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elf-files)))
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;; Return a list of libraries that FILE needs.
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(define (file-needed file)
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(let* ((elf (call-with-input-file file
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(compose parse-elf get-bytevector-all)))
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(dyninfo (elf-dynamic-info elf)))
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(if dyninfo
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(elf-dynamic-info-needed dyninfo)
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'())))
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;; If FILE needs any libs that are part of ELF-FILES, the RUNPATH
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;; is modified accordingly.
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(define (handle-file file elf-files)
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(let* ((dep-dirs (concatenate (map (lambda (dep-name)
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(find-deps dep-name elf-files))
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(file-needed file)))))
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(unless (null? dep-dirs)
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(augment-rpath file (string-join dep-dirs ":")))))
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(define handle-output
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(match-lambda
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((output . directory)
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(let* ((elf-dirnames (map (lambda (subdir)
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(string-append directory "/" subdir))
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elf-directories))
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(existing-elf-dirs (filter (lambda (dir)
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(and (file-exists? dir)
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(file-is-directory? dir)))
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elf-dirnames))
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(elf-pred (lambda (name stat)
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(elf-file? name)))
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(elf-list (concatenate (map (lambda (dir)
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(find-files dir elf-pred))
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existing-elf-dirs))))
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(for-each (lambda (elf-file)
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(strip-runpath elf-file)
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(handle-file elf-file elf-list))
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elf-list)))))
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(for-each handle-output outputs)
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#t)
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(define %standard-phases
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;; The standard-phases of glib-or-gtk contains a superset of the phases
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;; from the gnu-build-system. If the glib-or-gtk? key is #f (the default)
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;; then the extra phases will be removed again in (guix build-system meson).
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(modify-phases glib-or-gtk:%standard-phases
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(replace 'configure configure)
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(replace 'build build)
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(replace 'check check)
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(replace 'install install)
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(add-after 'strip 'fix-runpath fix-runpath)))
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(define* (meson-build #:key inputs phases
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#:allow-other-keys #:rest args)
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"Build the given package, applying all of PHASES in order."
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(apply gnu:gnu-build #:inputs inputs #:phases phases args))
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;;; meson-build-system.scm ends here
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