this post was submitted on 24 Nov 2023
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My Lisp physics engine for Trial is finally working! (mastodon.tymoon.eu)
submitted 1 year ago by Shinmera@alien.top to c/lisp
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[–] corbasai@alien.top 1 points 1 year ago (1 children)

(ql-dist:install-dist "http://dist.shirakumo.org/shirakumo.txt")

(ql:quickload :trial-examples)

(trial-examples:launch :scene-loader)

mine stall at

[package org.shirakumo.machine-state];

; caught ERROR:

; READ error during COMPILE-FILE:

;

; Symbol "*GC-REAL-TIME*" not found in the SB-EXT package.

;

; Line: 66, Column: 33, File-Position: 2176

;

; Stream: #

​

debugger invoked on a UIOP/LISP-BUILD:COMPILE-FILE-ERROR in thread

#:

COMPILE-FILE-ERROR while

compiling #

[–] Shinmera@alien.top 1 points 1 year ago (1 children)

Not sure when that was introduced into SBCL, but suffice to say your version is too old.

[–] theangeryemacsshibe@alien.top 1 points 1 year ago

It was introduced in SBCL 2.3.7 as (= *gc-real-time* *gc-run-time*) (approximately, timer precision is weird) holds for serial GC, but not for parallel GC.