Disable the "dotted names not allowed" warning for include files, which may...

Disable the "dotted names not allowed" warning for include files, which may contain arbitrary directory paths and not just plain module names.

Cython/Compiler/Main.py

@@ -658,7 +658,7 @@ def search_include_directories(dirs, qualified_name, suffix="", pos=None, includ
     for dirname in dirs:
         path = os.path.join(dirname, dotted_filename)
         if os.path.exists(path):
-            if '.' in qualified_name and '.' in os.path.splitext(dotted_filename)[0]:
+            if not include and '.' in qualified_name and '.' in os.path.splitext(dotted_filename)[0]:
                 warning(pos, "Dotted filenames ('%s') are deprecated."
                              " Please use the normal Python package directory layout." % dotted_filename, level=1)
             return path