Fix cross-builds after 4e5d32a445
Add alignment macros to cross-build's sys/cdefs.h Pull Request: https://github.com/freebsd/freebsd-src/pull/531 MFC after: immediately (build fix)
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@ -255,3 +255,22 @@
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#define __BSD_VISIBLE 1
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#define __ISO_C_VISIBLE 2011
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#define __EXT1_VISIBLE 1
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/* Alignment builtins for better type checking and improved code generation. */
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/* Provide fallback versions for other compilers (GCC/Clang < 10): */
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#if !__has_builtin(__builtin_is_aligned)
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#define __builtin_is_aligned(x, align) \
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(((__uintptr_t)x & ((align) - 1)) == 0)
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#endif
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#if !__has_builtin(__builtin_align_up)
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#define __builtin_align_up(x, align) \
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((__typeof__(x))(((__uintptr_t)(x)+((align)-1))&(~((align)-1))))
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#endif
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#if !__has_builtin(__builtin_align_down)
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#define __builtin_align_down(x, align) \
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((__typeof__(x))((x)&(~((align)-1))))
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#endif
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#define __align_up(x, y) __builtin_align_up(x, y)
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#define __align_down(x, y) __builtin_align_down(x, y)
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#define __is_aligned(x, y) __builtin_is_aligned(x, y)
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