HDFS-11950. Disable libhdfs zerocopy test on Mac. Contributed by Akira Ajisaka.

Signed-off-by: Wei-Chiu Chuang <weichiu@apache.org>

hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfs/CMakeLists.txt

@@ -62,7 +62,7 @@ build_libhdfs_test(test_libhdfs_threaded hdfs_static expect.c test_libhdfs_threa
 link_libhdfs_test(test_libhdfs_threaded hdfs_static native_mini_dfs)
 add_libhdfs_test(test_libhdfs_threaded hdfs_static)
 
-if (NOT WIN32)
+if (NOT WIN32 AND NOT APPLE)
 build_libhdfs_test(test_libhdfs_zerocopy hdfs_static expect.c test_libhdfs_zerocopy.c)
 link_libhdfs_test(test_libhdfs_zerocopy hdfs_static native_mini_dfs ${OS_LINK_LIBRARIES})
 add_libhdfs_test(test_libhdfs_zerocopy hdfs_static)