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	cem
	Jan 10 2018, 1:04 AM

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	--- sys/contrib/zstd/lib/freebsd/zstd_kfreebsd.h (revision 327712)
	+++ sys/contrib/zstd/lib/freebsd/zstd_kfreebsd.h (working copy)
	@@ -49,6 +49,44 @@
	#define calloc(a,b) (malloc)((a)*(b), M_ZSTD, M_WAITOK \| M_ZERO)
	#endif

	+#undef __builtin_ctz
	+#undef __builtin_ctzll
	+#undef __builtin_clz
	+#undef __builtin_clzll
	+#undef __builtin_bswap32
	+#undef __builtin_bswap64
	+
	+#define __builtin_bswap32 bswap32
	+#define __builtin_bswap64 bswap64
	+
	+static inline int
	+__builtin_ctz(int x)
	+{
	+ if (x == 0)
	+ return (sizeof(x) * NBBY);
	+ return (ffs(x) - 1);
	+}
	+
	+static inline long long
	+__builtin_ctzll(long long x)
	+{
	+ if (x == 0)
	+ return (sizeof(x) * NBBY);
	+ return (ffsll(x) - 1);
	+}
	+
	+static inline int
	+__builtin_clz(int x)
	+{
	+ return (sizeof(x) * NBBY - fls(x));
	+}
	+
	+static inline long long
	+__builtin_clzll(long long x)
	+{
	+ return (sizeof(x) * NBBY - flsll(x));
	+}
	+
	#ifdef __cplusplus
	}
	#endif