[Guile-commits] 01/06: (system base target) doesn't load (system foreign)

[Andy Wingo]

wingo pushed a commit to branch main
in repository guile.

commit 137b0e85b956a7b7e7c9bc0029d09fe6868e5b17
Author: Andy Wingo <wi...@pobox.com>
AuthorDate: Wed Mar 6 10:18:08 2024 +0100

    (system base target) doesn't load (system foreign)
    
    * module/system/base/target.scm (%native-word-size): Use
    most-positive-fixnum instead of importing (system foreign).
---
 module/system/base/target.scm | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/module/system/base/target.scm b/module/system/base/target.scm
index f06798789..474a1d5e0 100644
--- a/module/system/base/target.scm
+++ b/module/system/base/target.scm
@@ -1,6 +1,6 @@
 ;;; Compilation targets
 
-;; Copyright (C) 2011-2014,2017-2018,2023 Free Software Foundation, Inc.
+;; Copyright (C) 2011-2014,2017-2018,2023-2024 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
@@ -44,8 +44,16 @@
 ;;; Target types
 ;;;
 
-(define %native-word-size
-  ((@ (system foreign) sizeof) '*))
+;; Hacky way to get native pointer size without having to load (system
+;; foreign).
+(define-syntax %native-word-size
+  (lambda (stx)
+    (syntax-case stx ()
+      (id (identifier? #'id)
+          (cond
+           ((< most-positive-fixnum (ash 1 32)) 4)
+           ((< most-positive-fixnum (ash 1 64)) 8)
+           (else (error "unexpected!" most-positive-fixnum)))))))
 
 (define %target-type (make-fluid %host-type))
 (define %target-endianness (make-fluid (native-endianness)))