Enable stack traces from exception on ARM by default if using libstdc++.#217

Romain-Geissler-1A wants to merge 1 commit intoboostorg:developboostorg/stacktrace:developfrom

Romain-Geissler-1A:build-from-exception-for-arm-when-using-libstdc++Romain-Geissler-1A/stacktrace:build-from-exception-for-arm-when-using-libstdc++Copy head branch name to clipboard