Don't use cross-compile GCC on 32-bit systems#541
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ptitSeb merged 1 commit intoptitSeb:masterfrom Jan 5, 2022
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If the OS is not aarch64, then use the normal GCC. This allows compilation for work on devices like the RK3399 when running in a 32-bit chroot, instead of using a multilib setup.
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Having the same issue when compiling from aatch64 inside armv7h container :( |
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Hi,
I was trying to compile box86 on a on a RockPro64 in a a 32-bit (armv8l) Arch Linux chroot (the main OS is Manjaro, but I'm using a chroot because AFAIK there isn't an easy way to set up multilib/multiarch on Manjaro).
I ran into trouble if I used
-DRK3399=1because CMake tries to use a specific gcc binary (arm-linux-gnueabihf-gcc). To get around this, I modified the CMakeFile to only override theCMAKE_COMPILERvariable if CMake reports that it is running onaarch64.I used cmake_host_system_information for this, because the
CMAKE_HOST_SYSTEM_PROCESSORvariable otherwise doesn't get set until after runningproject(), which seems too late.I was thinking it might even make sense to just do
if(_aarch64) ...instead of checking all the various flags? If that makes sense, let me know and I can update this PR.I've tested this by:
cmake .. -DRK3399=1in Manjaro aarch64 and verifying that CMake (for me) errors out because it can't findarm-linux-gnueabihf-gcccmake .. -DRK3399=1in my Arch Linux armv8l chroot and verifying that CMake worksPS, thanks for box86!