This is already fixed upstream by moving to a newer version of their json C++ library. However, that would have been a 23000+ line patch, so instead I've remade the tarball with that new library version, calling it openfodder-1.4.1. This new numbering doesn't interfere with upstream's versioning. This should keep openfodder building while I work with upstream to update to their latest (1.5.3)