From 4a06e4a1e3463d5d6c97fc3b7abc333c740cb92d Mon Sep 17 00:00:00 2001
From: Matthew Flatt <mflatt@racket-lang.org>
Date: Thu, 11 Mar 2021 06:51:09 -0700
Subject: [PATCH] Chez Scheme: remove before install

Removing the old executable before copying a new one in place avoids
problems on ARM Mac OS, at least.
---
 racket/src/ChezScheme/makefiles/Mf-install.in | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/racket/src/ChezScheme/makefiles/Mf-install.in b/racket/src/ChezScheme/makefiles/Mf-install.in
index bdaa0578df..3cc43429a9 100644
--- a/racket/src/ChezScheme/makefiles/Mf-install.in
+++ b/racket/src/ChezScheme/makefiles/Mf-install.in
@@ -107,6 +107,9 @@ scheme.1 petite.1: scheme.1.in
 I=./installsh -o "${InstallOwner}" -g "${InstallGroup}"
 
 bininstall: ${Bin}
+	rm -f ${SchemePath}
+	rm -f ${PetitePath}
+	rm -f ${SchemeScriptPath}
 	$I -m 555 ${Scheme} ${SchemePath}
 	ln -f ${SchemePath} ${PetitePath}
 	ln -f ${SchemePath} ${SchemeScriptPath}