Added a WINE_NO_UNICODE_MACROS define to allow Winelib apps to switch
off the Unicode macros too.

include/oleidl.idl

diff --git a/include/oleidl.idl b/include/oleidl.idl
index be323f6..c9e8aa0 100644
--- a/include/oleidl.idl
+++ b/include/oleidl.idl
@@ -97,7 +97,7 @@
 
 
 /* avoid conflict with Wine Unicode macros */
-cpp_quote("#ifdef __WINESRC__")
+cpp_quote("#ifdef WINE_NO_UNICODE_MACROS")
 cpp_quote("#undef TranslateAccelerator")
 cpp_quote("#endif")
 
@@ -335,7 +335,7 @@
 	OLECONTF_ONLYIFRUNNING = 16
     } OLECONTF;
 
-cpp_quote("#ifdef __WINESRC__")
+cpp_quote("#ifdef WINE_NO_UNICODE_MACROS")
 cpp_quote("#undef GetObject")
 cpp_quote("#endif")
     HRESULT GetObject(