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Allow empty vendor string in GNU target triplets.

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NetBSD and pkgsrc have been using an empty vendor string since the
mid-'90s, such as x86_64--netbsd.  pkgsrc has been carrying around a
workaround just the guile build for a long time.  (Before that,
NetBSD omitted the vendor altogether, so if x86_64 existed then it
might have been `x86_64-netbsd', but that caused more problems.)
This change makes Guile accept an empty vendor string so workarounds
are no longer necessary.

* module/system/base/target.scm (validate-target): Allow empty vendor
string in GNU target triplets.
* test-suite/tests/cross-compilation.test ("cross-compilation"): Add
tests for "x86_64--netbsd".

Co-authored-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Taylor R Campbell 2022-04-13 09:51:08 +00:00 • committed by Ludovic Courtès
parent 158da6966b
commit e4e8afd6c8
2 changed files with 11 additions and 2 deletions
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9
module/system/base/target.scm
View file

@ -53,7 +53,14 @@
(if (or (not (string? target))
(let ((parts (string-split target #\-)))
(or (< (length parts) 3)
(or-map string-null? parts))))
(let ((cpu (list-ref parts 0))
(os (list-ref parts 2)))
(or (string-null? cpu)
;; vendor (parts[1]) may be empty
(string-null? os)
;; optional components (ABI) should be nonempty if
;; specified
(or-map string-null? (list-tail parts 3)))))))
(error "invalid target" target)))
(define (with-target target thunk)

4
test-suite/tests/cross-compilation.test
View file

@ -1,6 +1,6 @@
;;;; Cross compilation -*- mode: scheme; coding: utf-8; -*-
;;;;
;;;; Copyright (C) 2010-2014, 2020 Free Software Foundation, Inc.
;;;; Copyright (C) 2010-2014, 2020, 2022 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
@ -67,11 +67,13 @@
(test-triplet "i586" "pc" "gnu0.3")
(test-triplet "x86_64" "unknown" "linux-gnu")
(test-triplet "x86_64" "unknown" "kfreebsd-gnu")
(test-triplet "x86_64" "" "netbsd") ;NetBSD/pkgsrc with empty vendor
(test-target "i586-pc-gnu0.3" (endianness little) 4)
(test-target "x86_64-pc-linux-gnu" (endianness little) 8)
(test-target "powerpc-unknown-linux-gnu" (endianness big) 4)
(test-target "sparc64-unknown-freebsd8.2" (endianness big) 8)
(test-target "x86_64--netbsd" (endianness little) 8)
(test-target "mips64el-unknown-linux-gnu" ; n32 or o32 ABI
(endianness little) 4)