From c486885ecda309759144ebad16ec4afd566e0bee Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Wed, 12 Aug 2020 19:13:56 -0400
Subject: prevent prepocessor comparisons against empty tokens

---
 syslog.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'syslog.h')

diff --git a/syslog.h b/syslog.h
index bf5b096..9ad8f3f 100644
--- a/syslog.h
+++ b/syslog.h
@@ -27,6 +27,11 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 */
 
+#if defined _XOPEN_SOURCE && _XOPEN_SOURCE - 1 < 0
+#undef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 400
+#endif
+
 #if	(defined _XOPEN_SOURCE && ((defined _XOPEN_SOURCE_EXTENDED && _XOPEN_SOURCE_EXTENDED == 1) || 500 <= _XOPEN_SOURCE))
 /* ./src/syslog/LOG_ALERT.c */
 #define LOG_ALERT                                                         (1<<1)
-- 
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