Fix callingconvention test

tests/compile/callingconvention.h

-#ifdef __cplusplus
-extern "C" {
-#endif
-extern DL_EXPORT(int) f1(void);
-extern DL_EXPORT(int) __cdecl f2(void);
-extern DL_EXPORT(int) __stdcall f3(void);
-extern DL_EXPORT(int) __fastcall f4(void);
-#ifdef __cplusplus
-}
-#endif
-
-int f1(void) {return 0;}
-int __cdecl f2(void) {return 0;}
-int __stdcall f3(void) {return 0;}
-int __fastcall f4(void) {return 0;}
-
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-extern int (*p1)(void);
-extern int (__cdecl *p2)(void);
-extern int (__stdcall *p3)(void);
-extern int (__fastcall *p4)(void);
-#ifdef __cplusplus
-}
-#endif
-
-int (*p1)(void);
-int (__cdecl *p2)(void);
-int (__stdcall *p3)(void);
-int (__fastcall *p4)(void);

tests/compile/callingconvention.pyx

-# mode: compile
-
-cdef extern from "callingconvention.h":
-    pass
-
-
-cdef extern int f1()
-
-cdef extern int __cdecl f2()
-
-cdef extern int __stdcall f3()
-
-cdef extern int __fastcall f4()
-
-
-cdef extern int (*p1)()
-
-cdef extern int (__cdecl *p2)()
-
-cdef extern int (__stdcall *p3)()
-
-cdef extern int (__fastcall *p4)()
-
-
-p1 = f1
-p2 = f2
-p3 = f3
-p4 = f4

tests/compile/callingconvention.srctree

+PYTHON setup.py build_ext --inplace
+PYTHON -c "import callingconvention"
+
+######## setup.py ########
+
+from distutils.core import setup
+from Cython.Distutils import build_ext
+from Cython.Distutils.extension import Extension
+
+setup(
+    ext_modules = [
+        Extension("callingconvention", ["callingconvention.pyx", "external_callingconvention.c"]),
+    ],
+    cmdclass={'build_ext': build_ext},
+)
+
+######## callingconvention.pyx ########
+# mode: compile
+
+cdef extern from "external_callingconvention.h":
+    pass
+
+cdef extern int f1()
+cdef extern int __cdecl f2()
+cdef extern int __stdcall f3()
+cdef extern int __fastcall f4()
+
+cdef extern int (*p1)()
+cdef extern int (__cdecl *p2)()
+cdef extern int (__stdcall *p3)()
+cdef extern int (__fastcall *p4)()
+
+p1 = f1
+p2 = f2
+p3 = f3
+p4 = f4
+
+######## external_callingconvention.h ########
+#ifdef __cplusplus
+extern "C" {
+#endif
+extern DL_IMPORT(int) f1(void);
+extern DL_IMPORT(int) __cdecl f2(void);
+extern DL_IMPORT(int) __stdcall f3(void);
+extern DL_IMPORT(int) __fastcall f4(void);
+extern DL_IMPORT(int) (*p1)(void);
+extern DL_IMPORT(int) (__cdecl *p2)(void);
+extern DL_IMPORT(int) (__stdcall *p3)(void);
+extern DL_IMPORT(int) (__fastcall *p4)(void);
+#ifdef __cplusplus
+}
+#endif
+
+######## external_callingconvention.c ########
+#include <Python.h>
+
+#if !defined(WIN32) && !defined(MS_WINDOWS)
+  #ifndef __stdcall
+    #define __stdcall
+  #endif
+  #ifndef __cdecl
+    #define __cdecl
+  #endif
+  #ifndef __fastcall
+    #define __fastcall
+  #endif
+#endif
+
+DL_EXPORT(int) f1(void) {return 0;}
+DL_EXPORT(int) __cdecl f2(void) {return 0;}
+DL_EXPORT(int) __stdcall f3(void) {return 0;}
+DL_EXPORT(int) __fastcall f4(void) {return 0;}
+DL_EXPORT(int) (*p1)(void);
+DL_EXPORT(int) (__cdecl *p2)(void);
+DL_EXPORT(int) (__stdcall *p3)(void);
+DL_EXPORT(int) (__fastcall *p4)(void);