From 551eeb548345fd60ae1b5ff90f033c29ba85a53d Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter_e@gmx.net>
Date: Fri, 29 Sep 2000 13:35:26 +0000
Subject: [PATCH] Cygwin uses _sys_nerr for sys_nerr

---
 src/backend/utils/error/elog.c |  4 ++++
 src/backend/utils/error/exc.c  | 14 +++++++++-----
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/src/backend/utils/error/elog.c b/src/backend/utils/error/elog.c
index 826faa9d94..c30471d74c 100644
--- a/src/backend/utils/error/elog.c
+++ b/src/backend/utils/error/elog.c
@@ -38,6 +38,10 @@
 #include "commands/copy.h"
 
 extern int	errno;
+
+#ifdef __CYGWIN__
+# define sys_nerr _sys_nerr
+#endif
 extern int	sys_nerr;
 
 extern CommandDest whereToSendOutput;
diff --git a/src/backend/utils/error/exc.c b/src/backend/utils/error/exc.c
index b6b9272879..0ee8e1e9ce 100644
--- a/src/backend/utils/error/exc.c
+++ b/src/backend/utils/error/exc.c
@@ -16,10 +16,10 @@
  *
  *-------------------------------------------------------------------------
  */
-#include <errno.h>
-
 #include "postgres.h"
 
+#include <errno.h>
+
 #include "storage/ipc.h"
 #include "utils/exc.h"
 
@@ -94,15 +94,19 @@ EnableExceptionHandling(bool on)
 	ExceptionHandlingEnabled = on;
 }
 
+
+extern int	errno;
+#ifdef __CYGWIN__
+# define sys_nerr _sys_nerr
+#endif
+extern int	sys_nerr;
+
 static void
 ExcPrint(Exception *excP,
 		 ExcDetail detail,
 		 ExcData data,
 		 ExcMessage message)
 {
-	extern int	errno;
-	extern int	sys_nerr;
-
 #ifdef	lint
 	data = data;
 #endif
-- 
2.39.5