639 lines
26 KiB
Scheme
639 lines
26 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2012, 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
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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 gnu-build-system)
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#:use-module (guix build utils)
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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 ftw)
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#:use-module (ice-9 match)
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#:use-module (ice-9 regex)
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#:use-module (ice-9 format)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-19)
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#:use-module (srfi srfi-26)
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#:use-module (rnrs io ports)
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#:export (%standard-phases
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gnu-build))
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;; Commentary:
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;;
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;; Standard build procedure for packages using the GNU Build System or
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;; something compatible ("./configure && make && make install"). This is the
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;; builder-side code.
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;;
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;; Code:
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(define* (set-SOURCE-DATE-EPOCH #:rest _)
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"Set the 'SOURCE_DATE_EPOCH' environment variable. This is used by tools
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that incorporate timestamps as a way to tell them to use a fixed timestamp.
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See https://reproducible-builds.org/specs/source-date-epoch/."
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(setenv "SOURCE_DATE_EPOCH" "1")
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#t)
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(define (first-subdirectory dir)
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"Return the path of the first sub-directory of DIR."
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(file-system-fold (lambda (path stat result)
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(string=? path dir))
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(lambda (path stat result) result) ; leaf
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(lambda (path stat result) result) ; down
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(lambda (path stat result) result) ; up
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(lambda (path stat result) ; skip
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(or result path))
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(lambda (path stat errno result) ; error
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(error "first-subdirectory" (strerror errno)))
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#f
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dir))
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(define* (set-paths #:key target inputs native-inputs
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(search-paths '()) (native-search-paths '())
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#:allow-other-keys)
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(define input-directories
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(match inputs
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(((_ . dir) ...)
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dir)))
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(define native-input-directories
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(match native-inputs
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(((_ . dir) ...)
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dir)
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(#f ; not cross compiling
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'())))
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;; When cross building, $PATH must refer only to native (host) inputs since
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;; target inputs are not executable.
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(set-path-environment-variable "PATH" '("bin" "sbin")
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(append native-input-directories
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(if target
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'()
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input-directories)))
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(for-each (match-lambda
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((env-var (files ...) separator type pattern)
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(set-path-environment-variable env-var files
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input-directories
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#:separator separator
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#:type type
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#:pattern pattern)))
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search-paths)
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(when native-search-paths
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;; Search paths for native inputs, when cross building.
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(for-each (match-lambda
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((env-var (files ...) separator type pattern)
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(set-path-environment-variable env-var files
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native-input-directories
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#:separator separator
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#:type type
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#:pattern pattern)))
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native-search-paths))
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#t)
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(define* (install-locale #:key
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(locale "en_US.utf8")
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(locale-category LC_ALL)
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#:allow-other-keys)
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"Try to install LOCALE; emit a warning if that fails. The main goal is to
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use a UTF-8 locale so that Guile correctly interprets UTF-8 file names.
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This phase must typically happen after 'set-paths' so that $LOCPATH has a
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chance to be set."
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(catch 'system-error
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(lambda ()
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(setlocale locale-category locale)
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;; While we're at it, pass it to sub-processes.
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(setenv (locale-category->string locale-category) locale)
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(format (current-error-port) "using '~a' locale for category ~s~%"
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locale (locale-category->string locale-category))
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#t)
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(lambda args
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;; This is known to fail for instance in early bootstrap where locales
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;; are not available.
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(format (current-error-port)
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"warning: failed to install '~a' locale: ~a~%"
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locale (strerror (system-error-errno args)))
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#t)))
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(define* (unpack #:key source #:allow-other-keys)
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"Unpack SOURCE in the working directory, and change directory within the
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source. When SOURCE is a directory, copy it in a sub-directory of the current
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working directory."
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(if (file-is-directory? source)
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(begin
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(mkdir "source")
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(chdir "source")
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;; Preserve timestamps (set to the Epoch) on the copied tree so that
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;; things work deterministically.
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(copy-recursively source "."
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#:keep-mtime? #t)
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#t)
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(and (if (string-suffix? ".zip" source)
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(zero? (system* "unzip" source))
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(zero? (system* "tar" "xvf" source)))
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(chdir (first-subdirectory ".")))))
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;; See <http://bugs.gnu.org/17840>.
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(define* (patch-usr-bin-file #:key native-inputs inputs
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(patch-/usr/bin/file? #t)
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#:allow-other-keys)
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"Patch occurrences of \"/usr/bin/file\" in all the executable 'configure'
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files found in the source tree. This works around Libtool's Autoconf macros,
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which generates invocations of \"/usr/bin/file\" that are used to determine
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things like the ABI being used."
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(when patch-/usr/bin/file?
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(for-each (lambda (file)
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(when (executable-file? file)
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(patch-/usr/bin/file file)))
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(find-files "." "^configure$")))
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#t)
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(define* (patch-source-shebangs #:key source #:allow-other-keys)
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"Patch shebangs in all source files; this includes non-executable
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files such as `.in' templates. Most scripts honor $SHELL and
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$CONFIG_SHELL, but some don't, such as `mkinstalldirs' or Automake's
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`missing' script."
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(for-each patch-shebang
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(find-files "."
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(lambda (file stat)
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;; Filter out symlinks.
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(eq? 'regular (stat:type stat)))
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#:stat lstat)))
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(define (patch-generated-file-shebangs . rest)
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"Patch shebangs in generated files, including `SHELL' variables in
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makefiles."
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;; Patch executable regular files, some of which might have been generated
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;; by `configure'.
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(for-each patch-shebang
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(find-files "."
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(lambda (file stat)
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(and (eq? 'regular (stat:type stat))
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(not (zero? (logand (stat:mode stat) #o100)))))
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#:stat lstat))
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;; Patch `SHELL' in generated makefiles.
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(for-each patch-makefile-SHELL (find-files "." "^(GNU)?[mM]akefile$")))
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(define* (configure #:key build target native-inputs inputs outputs
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(configure-flags '()) out-of-source?
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#:allow-other-keys)
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(define (package-name)
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(let* ((out (assoc-ref outputs "out"))
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(base (basename out))
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(dash (string-rindex base #\-)))
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;; XXX: We'd rather use `package-name->name+version' or similar.
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(string-drop (if dash
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(substring base 0 dash)
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base)
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(+ 1 (string-index base #\-)))))
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(let* ((prefix (assoc-ref outputs "out"))
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(bindir (assoc-ref outputs "bin"))
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(libdir (assoc-ref outputs "lib"))
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(includedir (assoc-ref outputs "include"))
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(docdir (assoc-ref outputs "doc"))
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(bash (or (and=> (assoc-ref (or native-inputs inputs) "bash")
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(cut string-append <> "/bin/bash"))
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"/bin/sh"))
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(flags `(,@(if target ; cross building
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'("CC_FOR_BUILD=gcc")
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'())
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,(string-append "CONFIG_SHELL=" bash)
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,(string-append "SHELL=" bash)
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,(string-append "--prefix=" prefix)
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"--enable-fast-install" ; when using Libtool
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;; Produce multiple outputs when specific output names
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;; are recognized.
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,@(if bindir
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(list (string-append "--bindir=" bindir "/bin"))
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'())
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,@(if libdir
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(cons (string-append "--libdir=" libdir "/lib")
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(if includedir
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'()
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(list
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(string-append "--includedir="
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libdir "/include"))))
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'())
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,@(if includedir
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(list (string-append "--includedir="
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includedir "/include"))
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'())
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,@(if docdir
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(list (string-append "--docdir=" docdir
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"/share/doc/" (package-name)))
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'())
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,@(if build
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(list (string-append "--build=" build))
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'())
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,@(if target ; cross building
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(list (string-append "--host=" target))
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'())
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,@configure-flags))
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(abs-srcdir (getcwd))
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(srcdir (if out-of-source?
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(string-append "../" (basename abs-srcdir))
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".")))
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(format #t "source directory: ~s (relative from build: ~s)~%"
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abs-srcdir srcdir)
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(if out-of-source?
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(begin
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(mkdir "../build")
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(chdir "../build")))
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(format #t "build directory: ~s~%" (getcwd))
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(format #t "configure flags: ~s~%" flags)
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;; Use BASH to reduce reliance on /bin/sh since it may not always be
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;; reliable (see
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;; <http://thread.gmane.org/gmane.linux.distributions.nixos/9748>
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;; for a summary of the situation.)
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;;
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;; Call `configure' with a relative path. Otherwise, GCC's build system
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;; (for instance) records absolute source file names, which typically
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;; contain the hash part of the `.drv' file, leading to a reference leak.
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(zero? (apply system* bash
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(string-append srcdir "/configure")
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flags))))
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(define* (build #:key (make-flags '()) (parallel-build? #t)
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#:allow-other-keys)
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(zero? (apply system* "make"
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`(,@(if parallel-build?
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`("-j" ,(number->string (parallel-job-count)))
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'())
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,@make-flags))))
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(define* (check #:key target (make-flags '()) (tests? (not target))
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(test-target "check") (parallel-tests? #t)
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#:allow-other-keys)
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(if tests?
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(zero? (apply system* "make" test-target
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`(,@(if parallel-tests?
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`("-j" ,(number->string (parallel-job-count)))
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'())
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,@make-flags)))
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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 #:key (make-flags '()) #:allow-other-keys)
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(zero? (apply system* "make" "install" make-flags)))
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(define* (patch-shebangs #:key inputs outputs (patch-shebangs? #t)
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#:allow-other-keys)
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(define (list-of-files dir)
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(map (cut string-append dir "/" <>)
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(or (scandir dir (lambda (f)
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(let ((s (lstat (string-append dir "/" f))))
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(eq? 'regular (stat:type s)))))
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'())))
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(define bin-directories
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(match-lambda
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((_ . dir)
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(list (string-append dir "/bin")
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(string-append dir "/sbin")))))
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(define output-bindirs
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(append-map bin-directories outputs))
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(define input-bindirs
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;; Shebangs should refer to binaries of the target system---i.e., from
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;; "inputs", not from "native-inputs".
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(append-map bin-directories inputs))
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(when patch-shebangs?
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(let ((path (append output-bindirs input-bindirs)))
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(for-each (lambda (dir)
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(let ((files (list-of-files dir)))
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(for-each (cut patch-shebang <> path) files)))
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output-bindirs)))
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#t)
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(define* (strip #:key target outputs (strip-binaries? #t)
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(strip-command (if target
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(string-append target "-strip")
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"strip"))
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(objcopy-command (if target
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(string-append target "-objcopy")
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"objcopy"))
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(strip-flags '("--strip-debug"
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"--enable-deterministic-archives"))
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(strip-directories '("lib" "lib64" "libexec"
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"bin" "sbin"))
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#:allow-other-keys)
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(define debug-output
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;; If an output is called "debug", then that's where debugging information
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;; will be stored instead of being discarded.
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(assoc-ref outputs "debug"))
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(define debug-file-extension
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;; File name extension for debugging information.
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".debug")
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(define (debug-file file)
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;; Return the name of the debug file for FILE, an absolute file name.
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;; Once installed in the user's profile, it is in $PROFILE/lib/debug/FILE,
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;; which is where GDB looks for it (info "(gdb) Separate Debug Files").
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(string-append debug-output "/lib/debug/"
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file debug-file-extension))
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(define (make-debug-file file)
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;; Create a file in DEBUG-OUTPUT containing the debugging info of FILE.
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(let ((debug (debug-file file)))
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(mkdir-p (dirname debug))
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(copy-file file debug)
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(and (zero? (system* strip-command "--only-keep-debug" debug))
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(begin
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(chmod debug #o400)
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#t))))
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(define (add-debug-link file)
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;; Add a debug link in FILE (info "(binutils) strip").
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;; `objcopy --add-gnu-debuglink' wants to have the target of the debug
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;; link around so it can compute a CRC of that file (see the
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;; `bfd_fill_in_gnu_debuglink_section' function.) No reference to
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;; DEBUG-OUTPUT is kept because bfd keeps only the basename of the debug
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;; file.
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(zero? (system* objcopy-command "--enable-deterministic-archives"
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(string-append "--add-gnu-debuglink="
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(debug-file file))
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file)))
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(define (strip-dir dir)
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(format #t "stripping binaries in ~s with ~s and flags ~s~%"
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dir strip-command strip-flags)
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(when debug-output
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(format #t "debugging output written to ~s using ~s~%"
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debug-output objcopy-command))
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(for-each (lambda (file)
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(and (file-exists? file) ;discard dangling symlinks
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(or (elf-file? file) (ar-file? file))
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(or (not debug-output)
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(make-debug-file file))
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;; Ensure libraries are writable.
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(chmod file #o755)
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(zero? (apply system* strip-command
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(append strip-flags (list file))))
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(or (not debug-output)
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(add-debug-link file))))
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(find-files dir)))
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(or (not strip-binaries?)
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(every strip-dir
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(append-map (match-lambda
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((_ . dir)
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(filter-map (lambda (d)
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(let ((sub (string-append dir "/" d)))
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(and (directory-exists? sub) sub)))
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strip-directories)))
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outputs))))
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(define* (validate-runpath #:key
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(validate-runpath? #t)
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(elf-directories '("lib" "lib64" "libexec"
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"bin" "sbin"))
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outputs #:allow-other-keys)
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"When VALIDATE-RUNPATH? is true, validate that all the ELF files in
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ELF-DIRECTORIES have their dependencies found in their 'RUNPATH'.
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Since the ELF parser needs to have a copy of files in memory, better run this
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phase after stripping."
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(define (sub-directory parent)
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(lambda (directory)
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(let ((directory (string-append parent "/" directory)))
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(and (directory-exists? directory) directory))))
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(define (validate directory)
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(define (file=? file1 file2)
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(let ((st1 (stat file1))
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(st2 (stat file2)))
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(= (stat:ino st1) (stat:ino st2))))
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;; There are always symlinks from '.so' to '.so.1' and so on, so delete
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;; duplicates.
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(let ((files (delete-duplicates (find-files directory (lambda (file stat)
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(elf-file? file)))
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file=?)))
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(format (current-error-port)
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"validating RUNPATH of ~a binaries in ~s...~%"
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(length files) directory)
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(every* validate-needed-in-runpath files)))
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(if validate-runpath?
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(let ((dirs (append-map (match-lambda
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(("debug" . _)
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;; The "debug" output is full of ELF files
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;; that are not worth checking.
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'())
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((name . output)
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(filter-map (sub-directory output)
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elf-directories)))
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outputs)))
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(every* validate dirs))
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(begin
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(format (current-error-port) "skipping RUNPATH validation~%")
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#t)))
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(define* (validate-documentation-location #:key outputs
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#:allow-other-keys)
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"Documentation should go to 'share/info' and 'share/man', not just 'info/'
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and 'man/'. This phase moves directories to the right place if needed."
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(define (validate-sub-directory output sub-directory)
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(let ((directory (string-append output "/" sub-directory)))
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(when (directory-exists? directory)
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(let ((target (string-append output "/share/" sub-directory)))
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(format #t "moving '~a' to '~a'~%" directory target)
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(mkdir-p (dirname target))
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(rename-file directory target)))))
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(define (validate-output output)
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(for-each (cut validate-sub-directory output <>)
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'("man" "info")))
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(match outputs
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(((names . directories) ...)
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(for-each validate-output directories)))
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#t)
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(define* (compress-documentation #:key outputs
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(compress-documentation? #t)
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(documentation-compressor "gzip")
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(documentation-compressor-flags
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'("--best" "--no-name"))
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(compressed-documentation-extension ".gz")
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#:allow-other-keys)
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"When COMPRESS-DOCUMENTATION? is true, compress man pages and Info files
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found in OUTPUTS using DOCUMENTATION-COMPRESSOR, called with
|
||
DOCUMENTATION-COMPRESSOR-FLAGS."
|
||
(define (retarget-symlink link)
|
||
(let ((target (readlink link)))
|
||
(delete-file link)
|
||
(symlink (string-append target compressed-documentation-extension)
|
||
link)))
|
||
|
||
(define (has-links? file)
|
||
;; Return #t if FILE has hard links.
|
||
(> (stat:nlink (lstat file)) 1))
|
||
|
||
(define (maybe-compress-directory directory regexp)
|
||
(or (not (directory-exists? directory))
|
||
(match (find-files directory regexp)
|
||
(() ;nothing to compress
|
||
#t)
|
||
((files ...) ;one or more files
|
||
(format #t
|
||
"compressing documentation in '~a' with ~s and flags ~s~%"
|
||
directory documentation-compressor
|
||
documentation-compressor-flags)
|
||
(call-with-values
|
||
(lambda ()
|
||
(partition symbolic-link? files))
|
||
(lambda (symlinks regular-files)
|
||
;; Compress the non-symlink files, and adjust symlinks to refer
|
||
;; to the compressed files. Leave files that have hard links
|
||
;; unchanged ('gzip' would refuse to compress them anyway.)
|
||
(and (zero? (apply system* documentation-compressor
|
||
(append documentation-compressor-flags
|
||
(remove has-links? regular-files))))
|
||
(every retarget-symlink
|
||
(filter (cut string-match regexp <>)
|
||
symlinks)))))))))
|
||
|
||
(define (maybe-compress output)
|
||
(and (maybe-compress-directory (string-append output "/share/man")
|
||
"\\.[0-9]+$")
|
||
(maybe-compress-directory (string-append output "/share/info")
|
||
"\\.info(-[0-9]+)?$")))
|
||
|
||
(if compress-documentation?
|
||
(match outputs
|
||
(((names . directories) ...)
|
||
(every maybe-compress directories)))
|
||
(begin
|
||
(format #t "not compressing documentation~%")
|
||
#t)))
|
||
|
||
(define* (delete-info-dir-file #:key outputs #:allow-other-keys)
|
||
"Delete any 'share/info/dir' file from OUTPUTS."
|
||
(for-each (match-lambda
|
||
((output . directory)
|
||
(let ((info-dir-file (string-append directory "/share/info/dir")))
|
||
(when (file-exists? info-dir-file)
|
||
(delete-file info-dir-file)))))
|
||
outputs)
|
||
#t)
|
||
|
||
|
||
(define* (patch-dot-desktop-files #:key outputs inputs #:allow-other-keys)
|
||
"Replace any references to executables in '.desktop' files with their
|
||
absolute file names."
|
||
(define bin-directories
|
||
(append-map (match-lambda
|
||
((_ . directory)
|
||
(list (string-append directory "/bin")
|
||
(string-append directory "/sbin"))))
|
||
outputs))
|
||
|
||
(define (which program)
|
||
(or (search-path bin-directories program)
|
||
(begin
|
||
(format (current-error-port)
|
||
"warning: '.desktop' file refers to '~a', \
|
||
which cannot be found~%"
|
||
program)
|
||
program)))
|
||
|
||
(for-each (match-lambda
|
||
((_ . directory)
|
||
(let ((applications (string-append directory
|
||
"/share/applications")))
|
||
(when (directory-exists? applications)
|
||
(let ((files (find-files applications "\\.desktop$")))
|
||
(format #t "adjusting ~a '.desktop' files in ~s~%"
|
||
(length files) applications)
|
||
|
||
;; '.desktop' files contain translations and are always
|
||
;; UTF-8-encoded.
|
||
(with-fluids ((%default-port-encoding "UTF-8"))
|
||
(substitute* files
|
||
(("^Exec=([^/[:blank:]\r\n]*)(.*)$" _ binary rest)
|
||
(string-append "Exec=" (which binary) rest))
|
||
(("^TryExec=([^/[:blank:]\r\n]*)(.*)$" _ binary rest)
|
||
(string-append "TryExec="
|
||
(which binary) rest)))))))))
|
||
outputs)
|
||
#t)
|
||
|
||
(define %standard-phases
|
||
;; Standard build phases, as a list of symbol/procedure pairs.
|
||
(let-syntax ((phases (syntax-rules ()
|
||
((_ p ...) `((p . ,p) ...)))))
|
||
(phases set-SOURCE-DATE-EPOCH set-paths install-locale unpack
|
||
patch-usr-bin-file
|
||
patch-source-shebangs configure patch-generated-file-shebangs
|
||
build check install
|
||
patch-shebangs strip
|
||
validate-runpath
|
||
validate-documentation-location
|
||
delete-info-dir-file
|
||
patch-dot-desktop-files
|
||
compress-documentation)))
|
||
|
||
|
||
(define* (gnu-build #:key (source #f) (outputs #f) (inputs #f)
|
||
(phases %standard-phases)
|
||
#:allow-other-keys
|
||
#:rest args)
|
||
"Build from SOURCE to OUTPUTS, using INPUTS, and by running all of PHASES
|
||
in order. Return #t if all the PHASES succeeded, #f otherwise."
|
||
(define (elapsed-time end start)
|
||
(let ((diff (time-difference end start)))
|
||
(+ (time-second diff)
|
||
(/ (time-nanosecond diff) 1e9))))
|
||
|
||
(setvbuf (current-output-port) _IOLBF)
|
||
(setvbuf (current-error-port) _IOLBF)
|
||
|
||
;; Encoding/decoding errors shouldn't be silent.
|
||
(fluid-set! %default-port-conversion-strategy 'error)
|
||
|
||
;; The trick is to #:allow-other-keys everywhere, so that each procedure in
|
||
;; PHASES can pick the keyword arguments it's interested in.
|
||
(every (match-lambda
|
||
((name . proc)
|
||
(let ((start (current-time time-monotonic)))
|
||
(format #t "starting phase `~a'~%" name)
|
||
(let ((result (apply proc args))
|
||
(end (current-time time-monotonic)))
|
||
(format #t "phase `~a' ~:[failed~;succeeded~] after ~,1f seconds~%"
|
||
name result
|
||
(elapsed-time end start))
|
||
|
||
;; Dump the environment variables as a shell script, for handy debugging.
|
||
(system "export > $NIX_BUILD_TOP/environment-variables")
|
||
result))))
|
||
phases))
|