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[PATCH] PR79862 check macro for type aliases that depend on <stdint.h>


The <stdint.h> atomic types shouldn't be declared if the underlying
types aren't available.

	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.

Tested x86_64-linux, committed to trunk.


Attachment: patch.txt
Description: Text document


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