Merge 53501 and 53502 from 25 branch:
Add /GS- for AMD64 and Itanium builds where missing.
diff --git a/PCbuild/_ssl.mak b/PCbuild/_ssl.mak
index 2623d27..5641c6a 100644
--- a/PCbuild/_ssl.mak
+++ b/PCbuild/_ssl.mak
@@ -31,7 +31,7 @@
 
 _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) $(CFLAGS) /Fo$(TEMP)\_hashlib\$*.obj $(INCLUDES) 
+    cl /nologo /c $(HASH_SOURCE) $(CFLAGS) $(EXTRA_CFLAGS) /Fo$(TEMP)\_hashlib\$*.obj $(INCLUDES) 
     link /nologo @<<
 	/dll /out:_hashlib$(SUFFIX) $(HASH_LIBS) $(TEMP)\_hashlib\$*.obj
 <<