GNU bug report logs - #53878
[PATCH 00/11] Update Racket to 8.4. Adjust Chez Scheme

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From: Philip McGrath <philip <at> philipmcgrath.com>
To: 53878 <at> debbugs.gnu.org
Cc: Philip McGrath <philip <at> philipmcgrath.com>, zimoun <zimon.toutoune <at> gmail.com>, Ludovic Courtès <ludo <at> gnu.org>, Liliana Marie Prikler <liliana.prikler <at> ist.tugraz.at>, Attila Lendvai <attila <at> lendvai.name>, Malte Gerdes <malte.f.gerdes <at> gmail.com>
Subject: [bug#53878] [PATCH v2 10/15] gnu: Add racket-vm-bc.
Date: Thu, 17 Feb 2022 15:50:43 -0500

* gnu/packages/chez-and-racket-bootstrap.scm (racket-vm-bc): New variable.
---
 gnu/packages/chez-and-racket-bootstrap.scm | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/gnu/packages/chez-and-racket-bootstrap.scm b/gnu/packages/chez-and-racket-bootstrap.scm
index 0dd5f4bb68..dc87e090cb 100644
--- a/gnu/packages/chez-and-racket-bootstrap.scm
+++ b/gnu/packages/chez-and-racket-bootstrap.scm
@@ -474,6 +474,29 @@ (define maybe-release-catalog
      ;; The LGPL components are only used by Racket BC.
      (license (list license:lgpl3+ license:asl2.0 license:expat)))))
 
+(define-public racket-vm-bc
+  (package
+    (inherit racket-vm-cgc)
+    (name "racket-vm-bc")
+    (native-inputs
+     (modify-inputs (package-native-inputs racket-vm-cgc)
+       (prepend racket-vm-cgc)))
+    (arguments
+     (substitute-keyword-arguments (package-arguments racket-vm-cgc)
+       ((#:configure-flags _ '())
+        #~(cons "--enable-bconly"
+                #$(racket-vm-common-configure-flags)))))
+    (synopsis "Racket BC [3M] implementation")
+    (description "The Racket BC (``before Chez'' or ``bytecode'')
+implementation was the default before Racket 8.0.  It uses a compiler written
+in C targeting architecture-independent bytecode, plus a JIT compiler on most
+platforms.  Racket BC has a different C API and supports a slightly different
+set of architectures than the current default runtime system, Racket CS (based
+on ``Chez Scheme'').  It is the recommended implementation for architectures
+that Racket CS doesn't support.
+
+This package is the normal implementation of Racket BC with a precise garbage
+collector, 3M (``Moving Memory Manager'').")))
 ;;
 ;; Chez Scheme:
 ;;
-- 
2.32.0

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