3 files changed, 26 insertions, 11 deletions

diff --git a/gnu/packages/chez.scm b/gnu/packages/chez.scm
index e7ddab0d1f..b3aadf3a78 100644
--- a/gnu/packages/chez.scm
+++ b/gnu/packages/chez.scm
@@ -47,7 +47,8 @@
   #:use-module (ice-9 match)
   #:use-module (srfi srfi-1)
   #:use-module (srfi srfi-26)
-  #:export (nix-system->chez-machine
+  #:export (chez-scheme-for-system
+            nix-system->chez-machine
             chez-machine->nonthreaded
             chez-machine->threaded
             unpack-nanopass+stex))
@@ -67,6 +68,20 @@
 ;;
 ;; Code:
 
+(define* (chez-scheme-for-system #:optional
+                                 (system (or (%current-target-system)
+                                             (%current-system))))
+  "Return 'chez-scheme' unless only 'chez-scheme-for-racket' supports SYSTEM,
+including support for native threads."
+  (if (or
+       ;; full support upstream
+       (and=> (chez-upstream-features-for-system system)
+              (cut memq 'threads <>))
+       ;; no support anywhere
+       (not (nix-system->chez-machine system)))
+      chez-scheme
+      chez-scheme-for-racket))
+
 (define (chez-machine->nonthreaded machine)
   "Given a string MACHINE naming a Chez Scheme machine type, returns a string
 naming the nonthreaded machine type for the same architecture and OS as
@@ -751,7 +766,7 @@ create compilers, making them easier to understand and maintain.")
        (file-name (git-file-name name version))))
     (build-system gnu-build-system)
     (native-inputs
-     (list chez-scheme))
+     (list (chez-scheme-for-system)))
     (arguments
      (list #:make-flags (chez-make-flags name version)
            #:test-target "test"
@@ -782,7 +797,7 @@ create compilers, making them easier to understand and maintain.")
           (base32 "1dq25qygyncbfq4kwwqqgyyakfqjwhp5q23vrf3bff1p66nyfl3b"))))
       (build-system gnu-build-system)
       (native-inputs
-       (list chez-scheme
+       (list (chez-scheme-for-system)
              ghostscript
              ;; FIXME: This package fails to build with the error:
              ;;     mktexpk: don't know how to create bitmap font for bchr8r
@@ -847,7 +862,7 @@ programming in Scheme.")
           (base32 "1n5fbwwz51fdzvjackgmnsgh363g9inyxv7kmzi0469cwavwcx5m"))))
       (build-system gnu-build-system)
       (native-inputs
-       (list chez-scheme
+       (list (chez-scheme-for-system)
              chez-web
              (texlive-updmap.cfg (list texlive-pdftex))))
       (arguments
@@ -933,7 +948,7 @@ Chez Scheme.")
     (inputs
      (list chez-srfi)) ; for tests
     (native-inputs
-     (list chez-scheme))
+     (list (chez-scheme-for-system)))
     (arguments
      (list #:make-flags (chez-make-flags name version)
            #:test-target "test"
@@ -965,7 +980,7 @@ Chez Scheme.")
     (propagated-inputs
      (list chez-srfi)) ; for irregex-utils
     (native-inputs
-     (list chez-scheme))
+     (list (chez-scheme-for-system)))
     (arguments
      (list #:make-flags (chez-make-flags name version)
            #:test-target "test"
@@ -996,7 +1011,7 @@ syntax, with various aliases for commonly used patterns.")
     (propagated-inputs
      (list chez-srfi)) ; for irregex-utils
     (native-inputs
-     (list chez-scheme))
+     (list (chez-scheme-for-system)))
     (arguments
      (list #:make-flags (chez-make-flags name version)
            #:test-target "chez-check"
@@ -1059,7 +1074,7 @@ strings.")
     (inputs
      (list chez-srfi))       ; for tests
     (native-inputs
-     (list chez-scheme))
+     (list (chez-scheme-for-system)))
     (arguments
      (list #:make-flags (chez-make-flags name version)
            #:test-target "test"
@@ -1090,7 +1105,7 @@ required to port the program @code{Scmutils} to Chez Scheme.")
     (inputs
      (list chez-srfi))       ; for tests
     (native-inputs
-     (list chez-scheme))
+     (list (chez-scheme-for-system)))
     (propagated-inputs
      (list chez-mit chez-srfi))
     (arguments
diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index da0031cd00..f131734f76 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -451,7 +451,7 @@ a generic Scheme interaction mode for the GNU Emacs editor.")
                 (string-append
                  "(eval-after-load 'geiser-impl '" all ")"))))))))
     (inputs
-     (list chez-scheme))
+     (list (chez-scheme-for-system)))
     (propagated-inputs
      (list emacs-geiser))
     (home-page "https://nongnu.org/geiser/")
diff --git a/gnu/packages/loko.scm b/gnu/packages/loko.scm
index ef9312afe3..449c62f1f0 100644
--- a/gnu/packages/loko.scm
+++ b/gnu/packages/loko.scm
@@ -71,7 +71,7 @@
              #t)))))
     (native-inputs
      `(("akku" ,akku)
-       ("chez-scheme" ,chez-scheme)
+       ("chez-scheme" ,(chez-scheme-for-system))
        ("struct" ,guile-struct-pack)
        ("laesare" ,guile-laesare)
        ("pfds" ,guile-pfds)

path: root/nix/nix-daemon/shared.hh

/* GNU Guix --- Functional package management for GNU
   Copyright (C) 2012  Ludovic Courtès <ludo@gnu.org>

   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/>.  */

/* Replacement for Nix's libmain/shared.hh.  */

#pragma once

#include <string>

#include <stdlib.h>
#include <signal.h>

static inline void
showManPage (const char *name)
{
  /* This idea is evil.  Abort.  */
  abort ();
}

extern volatile ::sig_atomic_t blockInt;

extern char **argvSaved;