Hi all,

Is it possible for an nginx module to define custom compilation switches that add external libs / preprocessor macros ? Is there some example of a module that does it ?
Specifically, what I'm trying to do is measure time accurately in my module for benchmarking purposes. Since I use Linux, I was planning to use clock_gettime(CLOCK_MONOTONIC) for that. This function is Linux-specific, and so I would like to make it optional at compilation time:
* if nginx is compile with --with-clock-gettime (or something like that) I will use clock_gettime and link against the required library (librt)
* otherwise, I will fall back to using gettimeofday or drop the feature altogether

Thanks,

Eran