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-rw-r--r--lib/erl_interface/src/misc/ei_portio.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/erl_interface/src/misc/ei_portio.h b/lib/erl_interface/src/misc/ei_portio.h
index fbb61b0ccf..bded811a35 100644
--- a/lib/erl_interface/src/misc/ei_portio.h
+++ b/lib/erl_interface/src/misc/ei_portio.h
@@ -21,7 +21,7 @@
*/
#ifndef _EI_PORTIO_H
#define _EI_PORTIO_H
-#if !defined(__WIN32__) || !defined(VXWORKS)
+#if !defined(__WIN32__) && !defined(VXWORKS)
#ifdef HAVE_WRITEV
/* Declaration of struct iovec *iov should be visible in this scope. */
#include <sys/uio.h>