Unable to install dockerc

[ashBabu]

I am not familiar with zig build but I installed the snap version sudo snap install zig --beta --classic
and I get the following error. I am on Ubuntu 24.04. I was trying to build from source. I can download the below url using wget

$ zig build -Doptimize=ReleaseSafe -Dtarget=x86_64-linux-musl
/home/ash/Downloads/dockerc-0.3.2/build.zig.zon:23:20: error: unable to unpack tarball
            .url = "https://github.com/shadow-maint/shadow/releases/download/4.15.3/shadow-4.15.3.tar.gz",
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: file 'tests/su/09/env_special-options_' has unsupported type '1'
note: file 'tests/su/02/env_special_root-options_-l-p' has unsupported type '1'
note: file 'tests/su/02/env_special-options_-l-p' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_-m_bash' has unsupported type '1'
note: file 'tests/su/02/env_special-options_-p' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_-l-m' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_-p-' has unsupported type '1'
note: file 'tests/su/02/env_special_root-options_-p_bash' has unsupported type '1'
note: file 'tests/su/02/env_special-options_-l-p_bash' has unsupported type '1'
note: file 'tests/su/02/env_special_root-options__bash' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_-l' has unsupported type '1'
note: file 'tests/su/02/env_special_root-options_-l-p_bash' has unsupported type '1'
note: file 'tests/su/02/env_special_root-options_' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_--login' has unsupported type '1'
note: file 'tests/su/02/env_special-options_' has unsupported type '1'
note: file 'tests/su/02/env_special_root-options_-l' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_' has unsupported type '1'
note: file 'tests/su/02/env_special_root-options_-p' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_-p_bash' has unsupported type '1'
note: file 'tests/su/02/run_env_test.sh' has unsupported type '1'
note: file 'tests/su/02/env_special-options__bash' has unsupported type '1'
note: file 'tests/su/02/env_special_root-options_-l_bash' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_--preserve-environment' has unsupported type '1'
note: file 'tests/su/02/env_special-options_-l_bash' has unsupported type '1'
note: file 'tests/su/02/env_special-options_-l' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_-m' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options__bash' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_--login_bash' has unsupported type '1'
note: file 'tests/su/02/env_special-options_-p_bash' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_--preserve-environment_bash' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_-p' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_-' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_-l_bash' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_-l-m_bash' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_-p-_bash' has unsupported type '1'
note: file 'tests/su/02/env_FOO-options_-_bash' has unsupported type '1'
note: file 'tests/su/08/env_special-options_.exp' has unsupported type '1'
note: file 'tests/su/08/env_special_root-options_' has unsupported type '1'
note: file 'tests/su/08/env_special-options_' has unsupported type '1'
note: file 'tests/su/08/env_special_root-options_.exp' has unsupported type '1'

[NilsIrl]

Unfortunately to build dockerc you need this patch in zig: ziglang/zig#21092

I've been trying to get it reviewed but to no luck.

[ashBabu]

Thanks and that is unfortunate
Sorry for my ignorance here, I have never used zig. Can I do something locally to get the install successful? Like pointing to the downloaded shadow.tar.gz or something?

[NilsIrl]

You can probably modify the build.zig.zon at the root of the repository to use a shadow.tar.gz that you modified to not contain hard links: https://github.com/ziglang/zig/blob/master/doc/build.zig.zon.md