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#ifndef HAVE___ATTRIBUTE__
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#define __attribute__(x)
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#endif
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#if (HAVE_DECL_FFS==0) && (HAVE_DECL___BUILTIN_FFS==1)
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#define ffs __builtin_ffs
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#endif
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#ifdef GCC_WARN_UNUSED_RESULT
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#define WARN_UNUSED GCC_WARN_UNUSED_RESULT
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#else
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#define WARN_UNUSED
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#endif
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