Fix warning when compiling socketmodule.c with VS2010

VS2010 defineds the old errno constants in addition to the WSA* ones.

diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index df1c9f917fd2513d9f1fe06eeaa3c17829ce9c4e..d741d2cc4812db9adca01872d3f422cc5d0f8533 100644 (file)
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -390,6 +390,7 @@ dup_socket(SOCKET handle)
 #endif
 
 #ifdef MS_WIN32
+#undef EAFNOSUPPORT
 #define EAFNOSUPPORT WSAEAFNOSUPPORT
 #define snprintf _snprintf
 #endif