X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=src%2Flzms-compress.c;h=a4d45300681f6871f14fcbec0886fb67cf9b3a6b;hp=0e9f0c3657d996bdaf9fe2dc669abc699e1e7961;hb=81c83fa2dbb44e788f234ddd5427c00e33c12d52;hpb=b7071062542143113ad654d89ee6b0603b23b524

diff --git a/src/lzms-compress.c b/src/lzms-compress.c
index 0e9f0c36..a4d45300 100644
--- a/src/lzms-compress.c
+++ b/src/lzms-compress.c
@@ -116,7 +116,7 @@ struct lzms_range_encoder {
 	 * lzms_range_encoder_raw.  */
 	struct lzms_range_encoder_raw *rc;
 
-	/* Bits recently encoded by this range encoder.  This are used as in
+	/* Bits recently encoded by this range encoder.  This is used as an
 	 * index into @prob_entries.  */
 	u32 state;
 
@@ -669,17 +669,9 @@ lzms_do_init_rc_costs(void)
 static void
 lzms_init_rc_costs(void)
 {
-	static bool done = false;
-	static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
-
-	if (unlikely(!done)) {
-		pthread_mutex_lock(&mutex);
-		if (!done) {
-			lzms_do_init_rc_costs();
-			done = true;
-		}
-		pthread_mutex_unlock(&mutex);
-	}
+	static pthread_once_t once = PTHREAD_ONCE_INIT;
+
+	pthread_once(&once, lzms_do_init_rc_costs);
 }
 
 /*