- sys/cdefs is wanted for __CONCAT() - version.h and config_autogen.h are generated by the pico sdk - config_autogen expects to include board file - instead define PICO_xyz in target rules.mk
- sys/cdefs is wanted for __CONCAT() - version.h and config_autogen.h are generated by the pico sdk - config_autogen expects to include board file - instead define PICO_xyz in target rules.mk