Enable LOGURU_STACKTRACES cmake variable by default on non-windows platforms using glibc #254
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Changes: - Fixes issue [emilk#248](emilk#248) - CMake now performs a quick `try_run()` to inspect whether the currently detected C++ compiler is using glibc, and if so sets the LOGURU_STACKTRACES variable to TRUE by default to match the default value of the LOGURU_STACKTRACES macro inside `loguru.cpp`. Notes: - This is required because the cmake file is currently setup to only link loguru to the `dl` library if the cmake variable LOGURU_STACKTRACES is TRUE. Unfortunately, the `loguru.cpp` file implicitly enables the stacktraces feature under certain conditions (glibc on non-windows) and the CMake file wasn't previously written to account for that. This meant that the `dl` library wasn't being linked even though stacktraces were enabled (in the .cpp file), causing a linking error. - `undefined reference to `dladdr'`
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Changes:
try_run()to inspect whether the currently detected C++ compiler is using glibc, and if so sets the LOGURU_STACKTRACES variable to TRUE by default to match the default value of the LOGURU_STACKTRACES macro insideloguru.cpp.Notes:
dllibrary if the cmake variable LOGURU_STACKTRACES is TRUE. Unfortunately, theloguru.cppfile implicitly enables the stacktraces feature under certain conditions (glibc on non-windows) and the CMake file wasn't previously written to account for that. This meant that thedllibrary wasn't being linked even though stacktraces were enabled (in the .cpp file), causing a linking error.undefined reference to 'dladdr'