From f5bbd3b657b6340551c8a95f74a70857ff8fac79 Mon Sep 17 00:00:00 2001
From: Damien Miller <djm@mindrot.org>
Date: Thu, 30 Jan 2014 11:26:46 +1100
Subject:  - (djm) [configure.ac atomicio.c] Kludge around NetBSD offering   
 different symbols for 'read' when various compiler flags are    in use,
 causing atomicio.c comparisons against it to break and    read/write
 operations to hang; ok dtucker

---
 atomicio.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'atomicio.c')

diff --git a/atomicio.c b/atomicio.c
index 601b3c37..2bac36c9 100644
--- a/atomicio.c
+++ b/atomicio.c
@@ -56,8 +56,10 @@ atomicio6(ssize_t (*f) (int, void *, size_t), int fd, void *_s, size_t n,
 	ssize_t res;
 	struct pollfd pfd;
 
+#ifndef BROKEN_READ_COMPARISON
 	pfd.fd = fd;
 	pfd.events = f == read ? POLLIN : POLLOUT;
+#endif
 	while (n > pos) {
 		res = (f) (fd, s + pos, n - pos);
 		switch (res) {
@@ -65,7 +67,9 @@ atomicio6(ssize_t (*f) (int, void *, size_t), int fd, void *_s, size_t n,
 			if (errno == EINTR)
 				continue;
 			if (errno == EAGAIN || errno == EWOULDBLOCK) {
+#ifndef BROKEN_READ_COMPARISON
 				(void)poll(&pfd, 1, -1);
+#endif
 				continue;
 			}
 			return 0;
-- 
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