Specify the bufferoverflowU.lib to the makefile on the command line
(for ReleaseAMD64 builds).
diff --git a/PCbuild/_ssl.mak b/PCbuild/_ssl.mak
index 5641c6a..3420ef1 100644
--- a/PCbuild/_ssl.mak
+++ b/PCbuild/_ssl.mak
@@ -1,3 +1,4 @@
+EXTRA_LIBS=
 
 !IFDEF DEBUG
 SUFFIX=_d.pyd
@@ -26,12 +27,12 @@
 	@if not exist "$(TEMP)/_ssl/." mkdir "$(TEMP)/_ssl"
 	cl /nologo /c $(SSL_SOURCE) $(CFLAGS) /Fo$(TEMP)\_ssl\$*.obj $(INCLUDES)
 	link /nologo @<<
-             /dll /out:_ssl$(SUFFIX) $(TEMP)\_ssl\$*.obj $(SSL_LIBS)
+             /dll /out:_ssl$(SUFFIX) $(TEMP)\_ssl\$*.obj $(SSL_LIBS) $(EXTRA_LIBS)
 <<
 
 _hashlib$(SUFFIX): $(HASH_SOURCE) $(SSL_LIB_DIR)/libeay32.lib ../PC/*.h ../Include/*.h
     @if not exist "$(TEMP)/_hashlib/." mkdir "$(TEMP)/_hashlib"
     cl /nologo /c $(HASH_SOURCE) $(CFLAGS) $(EXTRA_CFLAGS) /Fo$(TEMP)\_hashlib\$*.obj $(INCLUDES) 
     link /nologo @<<
-	/dll /out:_hashlib$(SUFFIX) $(HASH_LIBS) $(TEMP)\_hashlib\$*.obj
+	/dll /out:_hashlib$(SUFFIX) $(HASH_LIBS) $(EXTRA_LIBS) $(TEMP)\_hashlib\$*.obj
 <<