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atomic: detect clang separately

This commit is contained in:
Alex R 2021-09-17 00:45:07 +02:00 committed by Sam Lantinga
parent 8d1e0ca324
commit ebdfd0e175
1 changed files with 9 additions and 11 deletions
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20
src/atomic/SDL_atomic.c
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@ -36,20 +36,18 @@
#endif
/* The __atomic_load_n() intrinsic showed up in different times for different compilers. */
#if defined(HAVE_GCC_ATOMICS)
# if defined(__clang__)
# if __has_builtin(__atomic_load_n)
/* !!! FIXME: this advertises as available in the NDK but uses an external symbol we don't have.
It might be in a later NDK or we might need an extra library? --ryan. */
# if !defined(__ANDROID__)
# define HAVE_ATOMIC_LOAD_N 1
# endif
# endif
# elif defined(__GNUC__)
#if defined(__clang__)
# if __has_builtin(__atomic_load_n) || defined(HAVE_GCC_ATOMICS)
/* !!! FIXME: this advertises as available in the NDK but uses an external symbol we don't have.
It might be in a later NDK or we might need an extra library? --ryan. */
# if !defined(__ANDROID__)
# define HAVE_ATOMIC_LOAD_N 1
# endif
# endif
#elif defined(__GNUC__)
# if (__GNUC__ >= 5)
# define HAVE_ATOMIC_LOAD_N 1
# endif
# endif
#endif
#if defined(__WATCOMC__) && defined(__386__)