cc1: 编译器配置无效：armv5 日期不支持 2020.12.17

 wesley@wesley:~/u-boot-2017.07$ export CROSS_COMPILE=arm-linux-gnueabi-

    
 wesley@wesley:~/u-boot-2017.07$ export ARCH=arm
    
 wesley@wesley:~/u-boot-2017.07$ sudo make imx6ul_isiot_mmc_defconfig
    
 [sudo] password for wesley: 
    
 #
    
 # configuration written to .config
    
 #
    
 wesley@wesley:~/u-boot-2017.07$ sudo make
    
 scripts/kconfig/conf  --silentoldconfig Kconfig
    
   CHK     include/config.h
    
   UPD     include/config.h
    
   CFG     u-boot.cfg
    
   GEN     include/autoconf.mk
    
   GEN     include/autoconf.mk.dep
    
   CFG     spl/u-boot.cfg