no instructions on how to build cargo without a cargo installation.

[horos22reg]

Problem

It says the following in README.md:

cargo requires the following tools and packages to build:

• cargo and rustc
• A C compiler for your platform
• git (to clone this repository)

this is not true in my case. I built rust from rustc-1.81.0-src, and it definitely did NOT provide me a cargo installation. I did:

./x.py build -j 16
../x.py install

and it gave me a rustc binary, but not a cargo binary.

In fact that was the reason I came to this repo.

Could you guys please add a section on how to build cargo without any dependencies here?

Thanks much

Steps

1. download cargo
2. try to install cargo without a cargo executable

Possible Solution(s)

1. a simple makefile or series of commands that can be used to build cargo without the self-dependency.

Notes

please do this. IMO this is a bug since there are cases where cargo is not in fact installed and you need to get it.

Version

don't have cargo installed, but I tried this with 0.82.0

[weihanglo]

this is not true in my case. I built rust from rustc-1.81.0-src, and it definitely did NOT provide me a cargo installation. I did:

In rustc source tarball, it has a bootstrapping logic: It effectively downloads a cargo executable from the internet, and then use the cargo to drive the build of rustc. Rustc has that way of custom workflow because of the nature and history of its bootstrap process.

I didn't see any need for cargo doing a similar custom workflow. Cargo itself is just a normal Cargo project requiring the stable toolchain from Rustup. Would you mind sharing your scenario of building Cargo without cargo installed?