CT_ARCH_64=y
CT_ARCH_ARM=y
CT_CC_LANG_CXX=y
CT_DEBUG_GDB=y
CT_GDB_CROSS_SIM=y
CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
CT_LIBC_NEWLIB_IO_C99FMT=y
CT_LIBC_NEWLIB_IO_FLOAT=y
CT_LIBC_NEWLIB_IO_LL=y

# For Docker.
CT_EXPERIMENTAL=y
CT_ALLOW_BUILD_AS_ROOT=y
CT_ALLOW_BUILD_AS_ROOT_SURE=y