From ae32ef647d7ca1c9f5b53d25f8967dc0b42735cb Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Wed, 1 Dec 2010 19:22:37 +0000
Subject: [PATCH] fix building by Cygwin: Cygwin defines _sys_nerr instead of
 sys_nerr, the issue has been introduced in r3788

---
 auto/unix | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/auto/unix b/auto/unix
index 0160661d6..5818180d6 100755
--- a/auto/unix
+++ b/auto/unix
@@ -119,6 +119,18 @@ ngx_feature_test='printf("%d", sys_nerr);'
 . auto/feature
 
 
+# Cygiwn defines _sys_nerr
+ngx_feature="_sys_nerr"
+ngx_feature_name="NGX_SYS_NERR"
+ngx_feature_run=value
+ngx_feature_incs='#include <errno.h>
+                  #include <stdio.h>'
+ngx_feature_path=
+ngx_feature_libs=
+ngx_feature_test='printf("%d", _sys_nerr);'
+. auto/feature
+
+
 ngx_feature="localtime_r()"
 ngx_feature_name="NGX_HAVE_LOCALTIME_R"
 ngx_feature_run=no