Corrected compiling issues caused through IPv6 support, you can now compile QW server again without any IPv6 headers or libraries

common/cl_main.c

@@ -44,7 +44,9 @@
 #ifdef _WIN32
 # include <winsock2.h>
 # include <ws2tcpip.h>
+# ifdef HAVE_IPV6
 #  include <tpipv6.h>
+# endif
 # define  _WINSOCKAPI_
 # define HAVE_SOCKLEN_T
 #else

qw_server/qw_server.dsp

@@ -179,6 +179,19 @@ SOURCE=..\common\net_udp.c
 # Begin Source File
 
 SOURCE=..\common\net_udp6.c
+
+!IF  "$(CFG)" == "qw_server - Win32 Release"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF  "$(CFG)" == "qw_server - Win32 Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF  "$(CFG)" == "qw_server - Win32 IPv6"
+
+!ENDIF 
+
 # End Source File
 # Begin Source File