diff --git a/network/socket/hotfix.patch b/network/socket/hotfix.patch
index c309caf82..852815168 100644
--- a/network/socket/hotfix.patch
+++ b/network/socket/hotfix.patch
@@ -2,6 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../socket/hotfix.patch
+# Copyright (C) 2009 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2003 Clifford Wolf
 #
@@ -36,7 +37,7 @@ diff -Nur socket-1.2p1/Makefile socket-1.2p1.new/Makefile
  
  ### Linux
 -#SWITCHES = -DHAS_POSIX_SIGS -DHAS_SYS_SIGLIST -DHAS_SYS_ERRLIST
-+SWITCHES = -DHAS_SYS_SIGLIST -DHAS_SYS_ERRLIST
++SWITCHES = -DHAS_SYS_SIGLIST -DHAS_SYS_ERRLIST -D_GNU_SOURCE
  
  ### Solaris 2.6 and 7 with gcc
  #SWITCHES = -DHAS_POSIX_SIGS -DHAS_SYS_SIGLIST -DHAS_SYS_ERRLIST \