From e6f9b299513446b6b6b80d172db8e72772704ffa Mon Sep 17 00:00:00 2001
From: Moonchild <moonchild@palemoon.org>
Date: Tue, 7 Nov 2023 19:54:01 +0100
Subject: Issue #2281 - Exclude throw wrapping on modern libcpp.

As discussed.
---
 memory/mozalloc/throw_gcc.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/memory/mozalloc/throw_gcc.h b/memory/mozalloc/throw_gcc.h
index c51794573e..3c61939eba 100644
--- a/memory/mozalloc/throw_gcc.h
+++ b/memory/mozalloc/throw_gcc.h
@@ -6,6 +6,9 @@
 #ifndef mozilla_throw_gcc_h
 #define mozilla_throw_gcc_h
 
+// Wrapping shouldn't be needed on libcpp 14+
+#if !defined(_LIBCPP_VERSION) || _LIBCPP_VERSION < 14000
+
 #include "mozilla/Attributes.h"
 
 #include <stdio.h>              // snprintf
@@ -140,4 +143,6 @@ __throw_system_error(int err)
 
 #undef MOZ_THROW_NORETURN
 
+#endif // !_LIBCPP_VERSION || _LIBCPP_VERSION < 14000
+
 #endif  // mozilla_throw_gcc_h
-- 
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