Integrated Assembler, JNZ and "unknown token in expression"

Hi Everyone,

I'm catching a compile error with some inline assembly under Clang 3.4
provided by Ubuntu 14.04 LTS. The compile error is shown below (with
macro expansion), but the essence is "JNZ 1b;" is producing "error:
unknown token in expression".

Any ideas how I can work around the issue?

Thanks in advance.