[issue23644] swig compile fails with ‘_Atomic’ does not name a type

[STINNER Victor]

STINNER Victor added the comment:

The problem is more general than Python: #include <stdatomic.h> fails in C++. Try to compiled atomic.cpp with g++, you will get the same error.

The following bug report in the glibc has been closed as WONTFIX:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60932

It suggests to use the following code:

#ifdef __cplusplus
#include <atomic>
using namespace std;
#else
#include <stdatomic.h>
#endif

I don't know if it works.

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Added file: http://bugs.python.org/file38458/atomic.cpp

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