Cmake option to turn off backtrace?

[travankor]

I tried to compile IVAN on musl libc (Linux) and it didn't work since execinfo is glibc-specific (not POSIX). For people that don't need to do debugging, it would be nice if the backtrace could be turned off as a cmake option.

Alternatively, maybe something like libunwind can supplement/replace execinfo. https://www.nongnu.org/libunwind/

[AquariusPower]

The same way we use the -DWIZARD seen at INSTALL info, we could have -DBACKTRACE (I think -DDEBUG may conflict with something more generic but I may be wrong).

Then, instead of ex. #ifndef WIN32 wherever backtrace() is called, we could instead #ifdef BACKTRACE.

Do you think you could propose (code/test) such a patch (PR)?
Basically condition everywhere that is coded #include <execinfo.h> to such define too, then catch everywhere it is required :)

It would also be good to be sure about other possible specific requirements by musl libc, I mean, not only about backtrace() would such PR be.