# HG changeset patch
# User Ruslan Ermilov <ru@nginx.com>
# Date 1332344105 0
# Node ID d29dc0486e8e2225fed4c667f8946e375d71718e
# Parent  f31162fefe01e02a4c68bb3bc635d8aea366c786
The addition of $tcpinfo_* variables has broken the build on Linux
systems with glibc versions prior to 2.7.  Fixed this by checking
the existence of "struct tcp_info" members during configuration.

diff --git a/auto/unix b/auto/unix
--- a/auto/unix
+++ b/auto/unix
@@ -352,6 +352,11 @@ ngx_feature_incs="#include <sys/socket.h
 ngx_feature_path=
 ngx_feature_libs=
 ngx_feature_test="socklen_t optlen = sizeof(struct tcp_info);
+                  struct tcp_info ti;
+                  ti.tcpi_rtt = 0;
+                  ti.tcpi_rttvar = 0;
+                  ti.tcpi_snd_cwnd = 0;
+                  ti.tcpi_rcv_space = 0;
                   getsockopt(0, IPPROTO_TCP, TCP_INFO, NULL, &optlen)"
 . auto/feature