commit 244002b418cd00f566113732071aca1874eee77d
Author: François Trahay <francois.trahay@telecom-sudparis.eu>
Date:   Tue Aug 23 11:59:41 2022 +0200

    use _Atomic instead of __atomic_fetch_add

diff --git a/src/eztrace-lib/pthread_core.c b/src/eztrace-lib/pthread_core.c
index c9ec1f19..2dd2dd93 100644
--- a/src/eztrace-lib/pthread_core.c
+++ b/src/eztrace-lib/pthread_core.c
@@ -20,6 +20,7 @@
 #include <unistd.h>
 #include <sched.h>
 #include <sys/syscall.h>
+#include <stdatomic.h>
 
 #define CURRENT_MODULE eztrace_core
 DECLARE_CURRENT_MODULE;
@@ -48,7 +49,7 @@ struct _pthread_create_info_t {
   void* arg;
 };
 
-static int nb_threads=0;
+static _Atomic int nb_threads=0;
 static int working_id = -1;
 
 extern int current_process_ref;
@@ -155,7 +156,7 @@ void ezt_init_thread() {
     return;
 
   /* atomically increment nb_threads */
-  thread_rank = __atomic_fetch_add(&nb_threads, 1, __ATOMIC_SEQ_CST);
+  thread_rank = nb_threads++;
   _ezt_register_thread();
 
   thread_status = ezt_trace_status_running;
