PR79862 check macro for type aliases that depend on <stdint.h>
PR libstdc++/79862
* include/std/atomic [!_GLIBCXX_USE_C99_STDINT_TR1] (atomic_int8_t)
(atomic_uint8_t, atomic_int16_t, atomic_uint16_t, atomic_int32_t,
(atomic_uint32_t, atomic_int64_t, atomic_uint64_t)
(atomic_int_least8_t, atomic_uint_least8_t, atomic_int_least16_t)
(atomic_uint_least16_t, atomic_int_least32_t, atomic_uint_least32_t)
(atomic_int_least64_t, atomic_uint_least64_t, atomic_int_fast8_t)
(atomic_uint_fast8_t, atomic_int_fast16_t, atomic_uint_fast16_t)
(atomic_int_fast32_t, atomic_uint_fast32_t, atomic_int_fast64_t)
(atomic_uint_fast64_t, atomic_intmax_t, atomic_uintmax_t): Don't
define.
From-SVN: r247021
1b36f6036e