[Lightning] GCC warnings

[Ludovic Courtès]

Hi,

Code that uses Lightning causes GCC (3.3.5) to loudly complain with
warnings like:

  reader.c:365: warning: value computed is not used

This occurs for various (but not all macros), among which `jit_movi_p',
`jit_finish', `jit_jmpi'.

According to the GCC manual, these warnings can be removed either by
passing it `-Wno-unused-value' or by casting these expressions to
`void'.

Could this be fixed in a future release?

Thanks,
Ludovic.