nixos-riscv/overlay.nix

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Nix
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final: prev:
# Changes to packages from nixpkgs
{
opensbi = prev.opensbi.overrideAttrs (old: {
makeFlags = old.makeFlags ++ [
# Build OpenSBI without compressed instructions
"PLATFORM_RISCV_ISA=rv64gv"
# Check with: riscv64-unknown-elf-objdump -d -M no-aliases rotate
];
});
# Fix GCC 13 format-overflow warning/error:
# ../src/shared/install.c:444:64: error: %s directive argument is null [-Werror=format-overflow=]
# 444 | err = log_error_errno(changes[i].type, "Failed to %s unit, unit %s does not exist.",
# | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
systemd = prev.systemd.overrideAttrs (old: {
CFLAGS = "-Wno-error=format-overflow";
});
}