Initial cypclass support in parsing

Cython/Compiler/Parsing.py

@@ -2257,8 +2257,8 @@ def p_statement(s, ctx, first_statement = 0):
         cdef_flag = 1
         nogil_flag = 1
         s.next()
-        if s.sy != "class":
-            s.error('ccdef statement only allowed for extension type')
+        if s.systring not in ("class", "cppclass"):
+            s.error('ccdef statement only allowed for extension type or cppclass')
     elif s.sy == 'cpdef':
         s.level = ctx.level
         cdef_flag = 1
@@ -3813,7 +3813,7 @@ def p_cpp_class_definition(s, pos,  ctx):
         visibility = ctx.visibility,
         in_pxd = ctx.level == 'module_pxd',
         attributes = attributes,
-        templates = templates)
+        templates = templates, cypclass=nogil)
 
 def p_cpp_class_attribute(s, ctx):
     decorators = None