diff options
Diffstat (limited to 'gnu/packages/racket.scm')
| -rw-r--r-- | gnu/packages/racket.scm | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/gnu/packages/racket.scm b/gnu/packages/racket.scm index f50f6f3eab..2b20353159 100644 --- a/gnu/packages/racket.scm +++ b/gnu/packages/racket.scm @@ -72,6 +72,7 @@ ;; ├── bc/ ;; ├── cs/ ;; ├── ChezScheme/ +;; ├── rktboot/ ;; ├── zuo/ ;; └── ... ;; @@ -149,14 +150,12 @@ ;; - Racket BC [3M] needs an existing Racket to run "xform", ;; which transforms its own C source code to add additional annotations ;; for the precise garbage collector. -;; - Racket CS needs (bootfiles for) Racket's fork of Chez Scheme. -;; It also needs an existing Racket to compile Racket-implemented +;; - Racket CS needs (boot files for) the corresponding version of Chez +;; Scheme. It also needs an existing Racket to compile Racket-implemented ;; parts of the runtime system to R6RS libraries. -;; - Chez Scheme also needs bootfiles for itself, but Racket can simulate -;; enough of Chez Scheme to load Racket's fork of the Chez Scheme compiler -;; purely from source into Racket and apply the compiler to itself, -;; producing the needed bootfiles (albeit very slowly). -;; Any variant of Racket since version 7.1 can run the simulation. +;; - Chez Scheme also needs boot files for itself, but Racket BC can +;; bootstrap these using the code in "racket/src/rktboot/". +;; See the commentary in "chez.scm" for further details ;; ;; So, we build CGC to build 3M to build bootfiles and CS. ;; @@ -164,6 +163,14 @@ ;; often use "BC" to mean "3M", consistent with `(banner)` and the ;; suffixes used on executables when more than one variant co-exists.) ;; +;; Since the pre-releases for Chez Scheme 10.0.0, all of Racket's changes have +;; been merged upstream, and development will be kept in sync going +;; forward. However, there is no plan to align the Chez Scheme and Racket +;; release cycles. For the near fulture, a given released version of Racket +;; will continue to depend on a specific pre-release version of Chez Scheme as +;; part of Racket CS's "ABI". See upstream discussion at +;; <https://racket.discourse.group/t/2739/3>. +;; ;; One remaining bootstrapping limitation is that Racket's reader, module ;; system, and macro expander are implemented in Racket. For Racket CS, ;; they are compiled to R6RS libraries as discussed above. This note from the @@ -189,7 +196,8 @@ ;; Zuo is notably *not* a problem for bootstrapping. The implementation is a ;; single hand-written C file designed to build with just `cc -o zuo zuo.c`, ;; even with very old or limited compilers. (We use the Autoconf support for -;; convienience.) +;; convienience.) As of Zuo 1.8, Zuo has tagged releases in its own repository +;; independent of the Racket release cycle. ;; ;; CODE: |