[WIDL]

Add VS9 build workaround for widl, like done for wpp.
CORE-6636 #resolve

svn path=/trunk/; revision=57321

reactos/tools/widl/CMakeLists.txt

@@ -1,8 +1,14 @@
 
 if(MSVC)
     add_definitions(
-        -Dsnprintf=_snprintf
-        -Dvsnprintf=_vsnprintf)
+        -Dsnprintf=_snprintf)
+
+    # Add this definition for WDK only, VS 9 doesn't like that
+    if (DEFINED ENV{DDKBUILDENV})
+        add_definitions(
+            -Dvsnprintf=_vsnprintf)
+    endif()
+
     list(APPEND SOURCE getopt.c)
 endif()