Index: /trunk/source/lisp-kernel/win64/Makefile
===================================================================
--- /trunk/source/lisp-kernel/win64/Makefile	(revision 13869)
+++ /trunk/source/lisp-kernel/win64/Makefile	(revision 13870)
@@ -85,5 +85,5 @@
 
 ../../wx86cl64.exe:	$(KSPOBJ) $(KERNELOBJ) $(DEBUGOBJ) Makefile pei-x86-64.x
-	$(CC) -Wl,--image-base=0x10000 -Wl,-script=pei-x86-64.x -m64 $(CDEBUG)  -Wl,--export-dynamic $(HASH_STYLE) -o $@ $(USE_LINK_MAP) $(KSPOBJ) $(KERNELOBJ) $(DEBUGOBJ) $(OSLIBS)
+	$(CC) -Wl,--image-base=0x10000 -Wl,-script=pei-x86-64.x -m64 $(CDEBUG)   $(HASH_STYLE) -o $@ $(USE_LINK_MAP) $(KSPOBJ) $(KERNELOBJ) $(DEBUGOBJ) $(OSLIBS)
 
 
Index: /trunk/source/lisp-kernel/x86-exceptions.c
===================================================================
--- /trunk/source/lisp-kernel/x86-exceptions.c	(revision 13869)
+++ /trunk/source/lisp-kernel/x86-exceptions.c	(revision 13870)
@@ -504,4 +504,8 @@
   xpPC(xp) += skip;
 }
+
+#ifndef SIGTRAP
+#define SIGTRAP 5
+#endif
 
 void