Hi Sean, I get these compiler warnings: CC keymap.o keytable.c:1832:76: warning: ‘struct toml_table_t’ declared inside parameter list will not be visible outside of this definition or declaration 1832 | static void attach_bpf(const char *lirc_name, const char *bpf_prog, struct toml_table_t *toml) | ^~~~~~~~~~~~ keytable.c: In function ‘main’: keytable.c:2108:42: warning: passing argument 3 of ‘attach_bpf’ from incompatible pointer type [-Wincompatible-pointer-types] 2108 | attach_bpf(rc_dev.lirc_name, fname, b->param); | ~^~~~~~~ | | | struct protocol_param * keytable.c:1832:90: note: expected ‘struct toml_table_t *’ but argument is of type ‘struct protocol_param *’ 1832 | static void attach_bpf(const char *lirc_name, const char *bpf_prog, struct toml_table_t *toml) | ~~~~~~~~~~~~~~~~~~~~~^~~~ CCLD ir-keytable It's with gcc 9.2. Can you take a look? Regards, Hans