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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2024 Hilton Chain <hako@ultrarare.space>
;;; Copyright © 2024 Efraim Flashner <efraim@flashner.co.il>
;;;
;;; 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 zig-utils)
#:use-module (guix build utils)
#:export (zig-configure
zig-target))
;;;
;;; Common procedures for zig and zig-build-system.
;;;
(define* (zig-configure #:key inputs target #:allow-other-keys)
;; Set cache dir, otherwise Zig looks for `$HOME/.cache'.
(setenv "ZIG_GLOBAL_CACHE_DIR" "/tmp/zig-cache")
(setenv "ZIG_LOCAL_CACHE_DIR" "/tmp/zig-cache")
;; XXX: Required for unpatched intermediade versions?
;; Set CC, since the stage 2 zig relies on it to find the libc
;; installation, and otherwise silently links against its own.
(setenv "CC"
(if target
(string-append target "-gcc")
"gcc"))
(setenv "PKG_CONFIG"
(if target
(string-append target "-pkg-config")
"pkg-config"))
;; Libc paths for target.
(let ((libc (assoc-ref inputs (if target "cross-libc" "libc")))
(port (open-file "/tmp/guix-zig-libc-paths" "w" #:encoding "utf8")))
(when libc
(display
(string-append "\
include_dir=" libc "/include
sys_include_dir=" libc "/include
crt_dir=" libc "/lib
msvc_lib_dir=
kernel32_lib_dir=
gcc_dir=")
port)
(setenv "ZIG_LIBC" "/tmp/guix-zig-libc-paths"))
(close-port port)))
(define (zig-target target)
(cond
((string=? target "i586-pc-gnu")
"x86-hurd-gnu")
((string=? target "i686-linux-gnu")
"x86-linux-gnu")
((string=? target "i686-w64-mingw32")
"x86-windows-gnu")
((string=? target "mips64el-linux-gnu")
"mips64el-linux-gnuabi64")
((string=? target "powerpc-linux-gnu")
"powerpc-linux-gnueabi")
((string=? target "x86_64-pc-gnu")
"x86_64-hurd-gnu")
((string=? target "x86_64-w64-mingw32")
"x86_64-windows-gnu")
(else target)))
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