It's known: https://bugs.python.org/issue38007
On Mon, Oct 21, 2019, at 20:11, Kacvinsky, Tom wrote:
> Today I discovered the this struct
>
> typedef struct{
> const char* name;
> int basicsize;
> int itemsize;
> unsigned int flags;
> PyType_Slot *slots; /* terminated by slot==0. */
> } PyType_Spec;
>
> with "PyTypeSlot *slots" being on line 190 of object.h causes a problem
> when compiled with code that brings in Qt. Qt has macro definitions of
> slots.
>
> With a cursory preprocessing of the file I was working with, using the
> handy gcc options -dM -E, I found that
> slots was defined to nothing
>
> #define slots
>
> and hence caused problems when object.h was brought into the mix.
>
> I will try to make a simple reproducer tomorrow. I know this probably
> could be solved by header file inclusion re-ordering,
> or in some cases #undef'ing slots before including Python.h, but I also
> thought the Python dev team would like to know
> about this issue.
>
> Tom
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