From 93005cd9dc2bab882e66ac7b81f593cd6c021e43 Mon Sep 17 00:00:00 2001
From: Stefan Monnier
Date: Tue, 9 May 2023 22:30:52 -0400
Subject: with-display-message: Workaround for bug#63253

Running arbitrary ELisp code from an atimer is still dangerous,
at least because the regexp engine is not-reentrant, so let's patch up
the case we bumped into.  There are probably many other such holes :-(

* src/alloc.c (garbage_collection_inhibited): Make it non-static.

* src/xdisp.c (garbage_collection_inhibited): Declare it.
(set_message, clear_message): Use it as a proxy for "we're in
a dangerous context like within `probably_quit`".
---
 src/alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/alloc.c')

diff --git a/src/alloc.c b/src/alloc.c
index 05a19f0b7e9..7ff2cd3b100 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -367,7 +367,7 @@ static ptrdiff_t pure_bytes_used_non_lisp;
 
 /* If positive, garbage collection is inhibited.  Otherwise, zero.  */
 
-static intptr_t garbage_collection_inhibited;
+intptr_t garbage_collection_inhibited;
 
 /* The GC threshold in bytes, the last time it was calculated
    from gc-cons-threshold and gc-cons-percentage.  */
-- 
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