https://github.com/Yubico/libu2f-host/commit/840f01135d2892f45e71b9e90405de587991bd03 --- u2f-host/u2fmisc.c.orig 2019-02-22 03:31:45.000000000 -0800 +++ u2f-host/u2fmisc.c 2021-08-12 23:06:00.000000000 -0700 @@ -33,6 +33,19 @@ #define u2fh_json_object_object_get(obj, key, value) (value = json_object_object_get(obj, key)) == NULL ? (json_bool)FALSE : (json_bool)TRUE #endif +/* json-c 0.13.99 does not define TRUE/FALSE anymore + * the json-c maintainers replaced them with pure 1/0 + * https://github.com/json-c/json-c/commit/0992aac61f8b + */ +#if defined JSON_C_VERSION_NUM && JSON_C_VERSION_NUM >= ((13 << 8) | 99) +#ifndef FALSE +#define FALSE 0 +#endif +#ifndef TRUE +#define TRUE 1 +#endif +#endif + static void dumpHex (unsigned char *data, int offs, int len) {