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From efd5bc0715e5477318be95a76811cda0a89e8289 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
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Date: Fri, 4 Mar 2022 12:00:26 +0100
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Subject: [PATCH] GLIBCXX fix for GCC 12?
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---
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 build/unix/stdc++compat/stdc++compat.cpp | 14 ++++++++++++++
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 1 file changed, 14 insertions(+)
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diff --git a/build/unix/stdc++compat/stdc++compat.cpp b/build/unix/stdc++compat/stdc++compat.cpp
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index 0180f6bcfa998..8d7a542ff11f0 100644
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--- a/build/unix/stdc++compat/stdc++compat.cpp
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+++ b/build/unix/stdc++compat/stdc++compat.cpp
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@@ -24,6 +24,7 @@
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    GLIBCXX_3.4.27 is from gcc 10
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    GLIBCXX_3.4.28 is from gcc 10
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    GLIBCXX_3.4.29 is from gcc 11
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+   GLIBCXX_3.4.30 is from gcc 12
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 This file adds the necessary compatibility tricks to avoid symbols with
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 version GLIBCXX_3.4.20 and bigger, keeping binary compatibility with
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@@ -69,6 +70,19 @@ void __attribute__((weak)) __throw_bad_array_new_length() { MOZ_CRASH(); }
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 }  // namespace std
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 #endif
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+#if _GLIBCXX_RELEASE >= 12
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+namespace std {
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+
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+/* This avoids the GLIBCXX_3.4.30 symbol version. */
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+void __attribute__((weak))
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+__glibcxx_assert_fail(const char* __file, int __line, const char* __function,
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+                      const char* __condition) {
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+  MOZ_CRASH();
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+}
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+
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+}  // namespace std
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+#endif
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+
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 /* While we generally don't build with exceptions, we have some host tools
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  * that do use them. libstdc++ from GCC 5.0 added exception constructors with
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  * char const* argument. Older versions only have a constructor with
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-- 
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2.35.1
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