crc32 mac build fix

Closes GH-6651.

diff --git a/ext/standard/crc32.c b/ext/standard/crc32.c
index 83f4314b694fb34037fc87885d9d431d155757c6..659c9f09065167bc955157f093172cea46348331 100644 (file)
--- a/ext/standard/crc32.c
+++ b/ext/standard/crc32.c
@@ -43,6 +43,7 @@ static inline int has_crc32_insn() {
        size_t reslen = sizeof(res);
        if (sysctlbyname("hw.optional.armv8_crc32", &res, &reslen, NULL, 0) < 0)
                res = 0;
+       return res;
 # else
        res = 0;
        return res;