From 2341a713bab11acf26dc82ce6535db4e93098f34 Mon Sep 17 00:00:00 2001
From: Jean-Paul Calderone <exarkun@twistedmatrix.com>
Date: Thu, 14 Sep 2023 14:59:15 -0400
Subject: [PATCH] check to see if we have easy access to atomics

---
 zfec/fec.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/zfec/fec.c b/zfec/fec.c
index c94815d..fae4772 100644
--- a/zfec/fec.c
+++ b/zfec/fec.c
@@ -8,6 +8,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <assert.h>
+#include <stdatomic.h>
 
 /*
  * Primitive polynomials - see Lin & Costello, Appendix A,
@@ -395,6 +396,9 @@ _invert_vdm (gf* src, unsigned k) {
 
 static int fec_initialized = 0;
 
+/* Just checking to see if this compiles everywhere */
+static atomic_flag compiler_test = ATOMIC_FLAG_INIT;
+
 void
 fec_init (void) {
     if (fec_initialized == 0) {