tuklib_integer.h: Fix a recent copypaste error in Clang detection.

Wrong line was changed in 7062348bf35c1e4cbfee00ad9fffb4a21aa6eff7.
Also, this has >= instead of == since ints larger than 32 bits would
work too even if not relevant in practice.

diff --git a/src/common/tuklib_integer.h b/src/common/tuklib_integer.h
index 414c56269f048738b10d928ed65cb65cad512452..08290842fbb6450c691bb8c5a5d97766c9589804 100644 (file)
--- a/src/common/tuklib_integer.h
+++ b/src/common/tuklib_integer.h
@@ -700,10 +700,10 @@ ctz32(uint32_t n)
 #if defined(__INTEL_COMPILER)
        return _bit_scan_forward(n);
 
-#elif TUKLIB_GNUC_REQ(3, 4) && UINT_MAX >= UINT32_MAX
+#elif (TUKLIB_GNUC_REQ(3, 4) || defined(__clang__)) && UINT_MAX >= UINT32_MAX
        return (uint32_t)__builtin_ctz(n);
 
-#elif (TUKLIB_GNUC_REQ(3, 4) || defined(__clang__)) && UINT_MAX == UINT32_MAX
+#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
        uint32_t i;
        __asm__("bsfl %1, %0" : "=r" (i) : "rm" (n));
        return i;