Fix e_nogilcmeth

Cython/Compiler/PyrexTypes.py

@@ -699,6 +699,8 @@ class CFuncType(CType):
             return 0
         if not self.same_calling_convention_as(other_type):
             return 0
+        if self.nogil != other_type.nogil:
+            return 0
         return 1
 
     def compatible_signature_with(self, other_type, as_cmethod = 0):
@@ -731,6 +733,8 @@ class CFuncType(CType):
             return 0
         if not self.same_calling_convention_as(other_type):
             return 0
+        if self.nogil != other_type.nogil:
+            return 0
         self.original_sig = other_type.original_sig or other_type
         if as_cmethod:
             self.args[0] = other_type.args[0]

tests/errors/e_nogilcmeth.pxd

+cdef class C:
+	cdef void f(self)

tests/errors/e_nogilcmeth.pyx

 cdef class C:
-	cdef void f(self):
+	cdef void f(self) nogil:
 		pass
 
 _ERRORS = u"""
-/Local/Projects/D/Pyrex/Source/Tests/Errors3/e_nogilcmeth.pyx:2:6: Signature does not match previous declaration
+/Local/Projects/D/Pyrex/Source/Tests/Errors3/e_nogilcmeth.pyx:2:6: Signature not compatible with previous declaration
 /Local/Projects/D/Pyrex/Source/Tests/Errors3/e_nogilcmeth.pxd:2:12: Previous declaration is here
 """