Re: [PATCH, v3] Potential solution to librt issue.

[Paolo Carlini <paolo dot carlini at oracle dot com>]

Replying to myself... ;)

> I'm still wondering if we could somehow
> have a mechanism working *inside* the .so, like having
> clock_gettime considered weak (Martin ;) inside the .so, and
> then the linking of librt triggering at the end of the linking
> process if the symbol is actually referenced somewhere in the
> user code and remained undefined. Is that vague idea clear,
> does it make sense (I'm asking the experts)?

Would it work *not* including <time.h> in chrono.cc, instead declaring it "by hand" decorated with the "famous" weakref attribute. Then the .so would export a __clock_gettime symbol, which essentially would wrap everything is now in the body of definition of system_clock::now. In the header, the inline definition of system_clock::now just forwards to __clock_gettime.

The above, + Paolo's mechanism in the specs, - the unconditional linking of librt (added a few days ago).

Paolo.