[U-Boot] Building fw_printenv (e.g. make env) failing

Quick question: How does one actually go about building fw_printenv nowadays? At lest just doing 'make env' fails for me:

[user@host u-boot.git]$ make env HOSTCC tools/env/aes.o HOSTCC tools/env/crc32.o HOSTCC tools/env/ctype.o HOSTCC tools/env/env_attr.o HOSTCC tools/env/env_flags.o HOSTCC tools/env/fw_env.o In file included from tools/env/fw_env.c:117:0: include/env_default.h:110:11: error: expected ‘}’ before ‘CONFIG_SYS_ARCH’ make[1]: *** [tools/env/fw_env.o] Error 1 make: *** [env] Error 2

I suspect some generated/autoconf.h discrepancy but am unsure how to properly fix that. Any suggestions?