When I include #include <bitcoin/explorer.hpp> I get the following compiler error:
/usr/local/include/bitcoin/explorer/command.hpp:58: Fehler: 'SYSCONFDIR' was not declared in this scope
58 | BC_DECLARE_CONFIG_DEFAULT_PATH("libbitcoin" / BX_PROGRAM_NAME ".cfg")
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Do I have to include anything else? Or do I have to set an environment variable?
(edited)