Use verbatim includes to simplify some tests.

tests/compile/cnamespec.h

-int c_a, c_b;

tests/compile/cnamespec.pyx

 # mode: compile
 
-cdef extern from "cnamespec.h":
+cdef extern from *:
+    """
+    int c_a, c_b;
+    """
     int a "c_a", b "c_b"
 
 cdef struct foo "c_foo":

tests/run/for_from_pyvar_loop_T601.pyx

@@ -26,7 +26,8 @@ def for_in_plain_ulong():
         print j
 
 
-cdef extern from "for_from_pyvar_loop_T601_extern_def.h":
+cdef extern from *:
+    """typedef unsigned long Ulong;"""
     ctypedef unsigned long Ulong
 
 cdef Ulong size():

tests/run/for_from_pyvar_loop_T601_extern_def.h

-
-typedef unsigned long Ulong;