diff --git a/library/GNUmakefile.os4 b/library/GNUmakefile.os4
index 573ef65..a47a54b 100644
--- a/library/GNUmakefile.os4
+++ b/library/GNUmakefile.os4
@@ -1,5 +1,5 @@
 #
-# $Id: GNUmakefile.os4,v 1.34 2005-03-03 14:20:55 obarthel Exp $
+# $Id: GNUmakefile.os4,v 1.35 2005-03-05 17:55:26 obarthel Exp $
 #
 # :ts=8
 #
@@ -111,7 +111,7 @@ WARNINGS = \
 #	-Wconversion -Wshadow
 
 INCLUDES = -Iinclude -I. -I$(SDK_INCLUDE)
-OPTIONS = -DNDEBUG -DUSE_64_BIT_INTS -D__USE_INLINE__ -Wa,-mregnames
+OPTIONS = -D__THREAD_SAFE -DNDEBUG -DUSE_64_BIT_INTS -D__USE_INLINE__ -Wa,-mregnames
 OPTIMIZE = -O -fomit-frame-pointer -funroll-loops
 #DEBUG = -g
 
diff --git a/library/socket_init_exit.c b/library/socket_init_exit.c
index c69a85b..0b8d713 100644
--- a/library/socket_init_exit.c
+++ b/library/socket_init_exit.c
@@ -1,5 +1,5 @@
 /*
- * $Id: socket_init_exit.c,v 1.12 2005-03-04 20:08:19 obarthel Exp $
+ * $Id: socket_init_exit.c,v 1.13 2005-03-05 17:55:26 obarthel Exp $
  *
  * :ts=4
  *
@@ -206,7 +206,7 @@ __socket_init(void)
 	 */
 	#if defined(__THREAD_SAFE) && defined(SBTC_CAN_SHARE_LIBRARY_BASES)
 	{
-		if(SocketBase->lib_Version >= 4)
+		if(__SocketBase->lib_Version >= 4)
 		{
 			tags[0].ti_Tag	= SBTM_SETVAL(SBTC_CAN_SHARE_LIBRARY_BASES);
 			tags[0].ti_Data	= TRUE;