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@@ -54,9 +54,12 @@ static initialize_backtrace_support_for_this_thread main_thread_initialization("
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 // FreeBSD 5 supports the __thread keyword, but doesn't initialize such
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 // variables to the correct default value.
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+// GCC on OpenBSD supports __thread, but any access to such a variable
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+// results in a segfault.
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 // Solaris does support __thread, but often it's not compiled into default GCC 
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 // packages (not to mention it's not available for Sparc). Playing it safe...
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-#if defined(GCC_IS_3_3_OR_HIGHER) && !defined(__FreeBSD__) && !defined(__SOLARIS__)
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+#if defined(GCC_IS_3_3_OR_HIGHER) && !defined(__FreeBSD__) && \
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+   !defined(__SOLARIS__) && !defined(__OpenBSD__)
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   static __thread spin_lock *backtrace_lock = NULL;
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   static __thread vector<trace_point *> *current_backtrace = NULL;
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