See discussion in #4663.
After last commit, our executables should export no symbols anymore. To make sure that this stays the case, verify this in the symbol checker script.
Add a script to check that the (Linux) executables produced by gitian only contain allowed gcc, glibc and libstdc++ version symbols. This makes sure they are still compatible with the minimum supported Linux distribution versions.
Michael Ford
Wladimir J. van der Laan