stdbuf: make build more reliable and allow installation using Cargo

[Arcterus]

Now instead of trying to finagle Cargo into giving us a shared library that we then have to find and inject into anything called by stdbuf, we just generate the library on the fly by embedding it into stdbuf. This allows us to install stdbuf using Cargo, so now everything can be built using just Cargo (yay).

I think this is enough that we can close #1104.

[Arcterus]

Also note that this means we can now go on crates.io.

[Cynede]

that's great, sadly building on windows with current rust is still being a bit messed up

[Arcterus]

How are you building? I just built it on Windows.

[Cynede]

rustc 1.22.1 (05e2e1c41 2017-11-22)
building fine currently

maybe I had problem before because I've used to run cargo update or something and new win32 crate has serious changes

[Arcterus]

Ah okay. I was having issues earlier because I forgot unix was a default feature.

[bugabinga]

Hi!

Cloning the repo and installing using cargo install now works fine. Good work!

Any ideas why

cargo install  --git https://github.com/uutils/coreutils uutils

might fail?

Backtrace

It is hard for me to parse, but I think it reports an issue in the build.rs of stdbuf.

[Arcterus]

Which version of the compiler are you using? If it’s repeatable something may have changed in Cargo.

[bugabinga]

Latest stable and nightly with same results.

oliver:~# rustup show
Default host: x86_64-unknown-linux-gnu
installed toolchains
--------------------
stable-x86_64-unknown-linux-gnu
nightly-x86_64-unknown-linux-gnu
active toolchain
----------------
stable-x86_64-unknown-linux-gnu (default)
rustc 1.23.0 (766bd11c8 2018-01-01)

[Arcterus]

@bugabinga sorry it has taken so long to respond. Interestingly, this issue only seems to happen when installing like cargo --git https://github.com/uutils/coreutils uutils. If you clone the repository and run cargo install from there, it seems to work just fine.

[Arcterus]

@bugabinga from looking at Cargo bugs, it may be related to something like this.

[bugabinga]

@bugabinga sorry it has taken so long to respond. Interestingly, this issue only seems to happen when installing like cargo --git https://github.com/uutils/coreutils uutils. If you clone the repository and run cargo install from there, it seems to work just fine.

Yes, I was aware. Sorry for not mentioning that. The bug you linked gives some clues , so I will test some more later and report back.