Please add an option to disable the stacktrace functionality

[jreichel-nvidia]

oiio_disable_boost_stacktrace.diff.txt
Is your feature request related to a problem? Please describe.
The stacktrace functionality creates an additional dependency on helper libraries like dbgeng.dll, even if it is not enabled. Such a dependency might be undesired in larger integrations.

Describe the solution you'd like
A cmake option to disable that functionality, see attachment for proof of concept.

Additional context
Should OIIO_HAS_STACKTRACE be affected by the patch? It is not affected by the Boost version check either (which might create wrong resultsif the header is used with a different boost version than the one used for building OIIO). Its documentation also says "has", not "working". Is the define basically just for convenience and serves the same purpose as a version check on OIIO_VERSION?

[lgritz]

I think this is a very reasonable request, and your proposed patch looks fine. Can you please submit it as a PR?

Let's keep OIIO_HAS_STACKTRACE as it is -- it indicates that the API exists, even if internally we have it disabled at OIIO-build time.

[triallax]

#3777 has been merged, is there any reason for this to remain open?

[lgritz]

Closed by #3777