Fixed Xerces library version.

diff --git a/src/Makefile.in b/src/Makefile.in
index b8a6f34..fa92809 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -323,9 +323,9 @@
 
 # We need the Xerces library
 ifeq ($(PLATFORM), OS390)
-  ALLLIBS += $(XERCESCROOT)/lib/libxerces-c1_7_0.x
+  ALLLIBS += $(XERCESCROOT)/lib/libxerces-c1_6_0.x
 else
-  ALLLIBS += -L$(XERCESCROOT)/lib -lxerces-c1_7_0
+  ALLLIBS += -L$(XERCESCROOT)/lib -lxerces-c1_6_0
 endif
 
 # We need the ICU library if we are using the ICUBridge