Build fails with glibc 2.13 after static_assert fallback regression #160704

gcc -pthread -c -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer  -fno-strict-overflow -Wsign-compare -DNDEBUG -g -O3 -Wall    -std=c11 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden  -I/usr/local/src/python/Include/internal -I/usr/local/src/python/Include/internal/mimalloc -IObjects -IInclude -IPython -I. -I/usr/local/src/python/Include    -DPy_BUILD_CORE -o Objects/longobject.o /usr/local/src/python/Objects/longobject.c
In file included from /usr/local/src/python/Include/Python.h:70,
                from /usr/local/src/python/Objects/longobject.c:5:
/usr/local/src/python/Include/internal/pycore_bitutils.h: In function '_Py_popcount32':
/usr/local/src/python/Include/pymacro.h:175:13: error: implicit declaration of function 'static_assert' [-Wimplicit-function-declaration]
  175 |             static_assert((cond), #cond); \
      |             ^~~~~~~~~~~~~
/usr/local/src/python/Include/internal/pycore_bitutils.h:100:5: note: in expansion of macro 'Py_BUILD_ASSERT'
  100 |     Py_BUILD_ASSERT(sizeof(x) <= sizeof(unsigned int));
      |     ^~~~~~~~~~~~~~~
make: *** [Makefile:3407: Objects/longobject.o] Error 1