make[1]: Entering directory '/srv/build/amery/sunxi/sunxi-nightly/build_u-boot-mainline/build_orangepi_prime' GEN ./Makefile # # configuration written to .config # make[1]: Leaving directory '/srv/build/amery/sunxi/sunxi-nightly/build_u-boot-mainline/build_orangepi_prime' make[1]: Entering directory '/srv/build/amery/sunxi/sunxi-nightly/build_u-boot-mainline/build_orangepi_prime' GEN ./Makefile scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config.h CFG u-boot.cfg GEN include/autoconf.mk.dep CFG spl/u-boot.cfg cc1: warning: unknown register name: x18 cc1: warning: unknown register name: x18 cc1: warning: unknown register name: x18 GEN include/autoconf.mk GEN spl/include/autoconf.mk *** Your GCC is older than 6.0 and is not supported CHK include/config/uboot.release CHK include/generated/timestamp_autogenerated.h /srv/build/amery/sunxi/sunxi-nightly/u-boot-sunxi-mainline/"board/sunxi/mksunxi_fit_atf.sh" \ arch/arm/dts/sun50i-h5-orangepi-prime.dtb > u-boot.its /srv/build/amery/sunxi/sunxi-nightly/u-boot-sunxi-mainline/arch/arm/config.mk:69: recipe for target 'checkgcc6' failed make[1]: *** [checkgcc6] Error 1 make[1]: *** Waiting for unfinished jobs.... GEN ./Makefile UPD include/generated/timestamp_autogenerated.h UPD include/config/uboot.release make[1]: *** wait: No child processes. Stop. Makefile:150: recipe for target 'sub-make' failed make: *** [sub-make] Error 2