On Sun, Dec 15, 2024 at 10:07 AM Jack Andrews <[email protected]> wrote: > > thanks for uboot! > > i'm trying to build uboot for raspi 4. > these steps produced warnings and a compile error > ``` > $ git clone https://source.denx.de/u-boot/u-boot.git > $ cd u-boot/
> $ make CC=clang rpi_4_defconfig > clang: error: unsupported option '-ffixed-x18' for target rpi_4_defconfig is a 64-bit target according to doc/board/broadcom/raspberrypi.rst. export ARCH=arm64 export CROSS_COMPILE=/usr/bin/aarch64-linux-gnu- make rpi_4_defconfig make In your case, you need to use a 64-bit clang.
