From: Michael Jeanson <mjeanson@efficios.com>
Date: Fri, 13 Nov 2020 20:10:39 +0000 (-0500)
Subject: port: extensions are enable by AC_USE_SYSTEM_EXTENSIONS
X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=commitdiff_plain;h=5f53c4bbc0836a697a5cde7d81de00ad68001b57

port: extensions are enable by AC_USE_SYSTEM_EXTENSIONS

Available extensions are enabled at configure, make the poll wrapper use
them.

Change-Id: I5a4f99f0b498152d779a2bca3e53775013fdba60
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/src/common/compat/poll.hpp b/src/common/compat/poll.hpp
index 3cb07bf93..5b6c2a00b 100644
--- a/src/common/compat/poll.hpp
+++ b/src/common/compat/poll.hpp
@@ -213,16 +213,6 @@ static inline void lttng_poll_clean(struct lttng_poll_event *events)
  * Fallback on poll(2) API
  */
 
-/* Needed for some poll event values */
-#ifndef __USE_XOPEN
-#define __USE_XOPEN
-#endif
-
-/* Needed for some poll event values */
-#ifndef __USE_GNU
-#define __USE_GNU
-#endif
-
 #include <poll.h>
 #include <stdint.h>
 
@@ -235,15 +225,13 @@ enum {
 	LPOLLRDBAND = POLLRDBAND,
 	LPOLLWRNORM = POLLWRNORM,
 	LPOLLWRBAND = POLLWRBAND,
-#ifdef __linux__
+#ifdef __USE_GNU
 	LPOLLMSG = POLLMSG,
 	LPOLLRDHUP = POLLRDHUP,
-#elif (defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__sun__) || defined(__APPLE__))
+#else
 	LPOLLMSG = 0,
 	LPOLLRDHUP = 0,
-#else
-#error "Please add support for your OS."
-#endif /* __linux__ */
+#endif /* __USE_GNU */
 	LPOLLERR = POLLERR,
 	LPOLLHUP = POLLHUP | POLLNVAL,
 	/* Close on exec feature does not exist for poll(2) */