Don't include tls.h if _ISOMAC is defined.

diff --git a/include/errno.h b/include/errno.h
index 9969b1f..934dae7 100644 (file)
--- a/include/errno.h
+++ b/include/errno.h
@@ -2,7 +2,7 @@
 
 #include <stdlib/errno.h>
 
-#ifdef _ERRNO_H
+#if defined _ERRNO_H && !defined _ISOMAC
 
 # include <tls.h>              /* Defines USE_TLS.  */