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Backport fixes for glibc 2.43 from newer mesa.
https://bugs.gentoo.org/969493
--- a/include/c11/threads_posix.h
+++ b/include/c11/threads_posix.h
@@ -51,8 +51,10 @@
#include <pthread.h>
/*---------------------------- macros ----------------------------*/
-#define ONCE_FLAG_INIT PTHREAD_ONCE_INIT
-#ifdef INIT_ONCE_STATIC_INIT
+#ifndef __once_flag_defined
+# define ONCE_FLAG_INIT PTHREAD_ONCE_INIT
+#endif
+#ifdef PTHREAD_DESTRUCTOR_ITERATIONS
#define TSS_DTOR_ITERATIONS PTHREAD_DESTRUCTOR_ITERATIONS
#else
#define TSS_DTOR_ITERATIONS 1 // assume TSS dtor MAY be called at least once.
@@ -66,7 +68,9 @@
typedef pthread_t thrd_t;
typedef pthread_key_t tss_t;
typedef pthread_mutex_t mtx_t;
+#ifndef __once_flag_defined
typedef pthread_once_t once_flag;
+#endif
/*
@@ -90,11 +94,13 @@
/*--------------- 7.25.2 Initialization functions ---------------*/
// 7.25.2.1
+#ifndef __once_flag_defined
static inline void
call_once(once_flag *flag, void (*func)(void))
{
pthread_once(flag, func);
}
+#endif
/*------------- 7.25.3 Condition variable functions -------------*/
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