I think 'make test' is an abandoned testing option for QEMU so this report might be unimportant. Here is my results for running 'make test':
$ make test
make -C tests/tcg test
LINK test_path
Undefined symbols for architecture x86_64:
"_buffer_is_zero", referenced from:
_qemu_iovec_is_zero in test_path.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[1]: *** [test_path] Error 1
make: *** [test] Error 2
