keccak: Fix implementation selection

This is not available when building with clang-cl.
chfast · Aug 9, 2021 · ec47e39 · ec47e39
1 parent 221dc56
commit ec47e39
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/keccak/keccak.c b/lib/keccak/keccak.c
@@ -278,7 +278,7 @@ static void keccakf1600_generic(uint64_t state[25])
 static void (*keccakf1600_best)(uint64_t[25]) = keccakf1600_generic;
 
 
-#if defined(__x86_64__) && __has_attribute(target)
+#if !defined(_MSC_VER) && defined(__x86_64__) && __has_attribute(target)
 __attribute__((target("bmi,bmi2"))) static void keccakf1600_bmi(uint64_t state[25])
 {
     keccakf1600_implementation(state);