Improving installation on local directory by updating LD_LIBRARY_PATH

[jlmenut]

When installing rust in a local directory on linux (not /usr/local but /home/name/rust for example), it is necessary to update LD_LIBRARY_PATH with the path to the rust libraries.

For example, in bash:

export LD_LIBRARY_PATH="/path/to/library":$LD_LIBRARY_PATH

An improvement of rustup.sh would be to make the installer update the shell configuration file or at least warn the user to update it.

[mzabaluev]

Please, no modifications of LD_LIBRARY_PATH for the whole user account or system-wide, without the installing user's explicit knowledge.

That said, it would be nice to print out a reminder note about LD_LIBRARY_PATH (and maybe PATH too) when Rust is installed under a custom prefix.

[jlmenut]

Of course the installer should not change LD_LIBRARY_PATH without the user agreement but it could ask for it and update the rc file if the user choose yes.

[daniel-vainsencher]

Just had to discover this issue and do it myself, took a few tries. A "just paste this into .bashrc" reminder would have saved time!

[steveklabnik]

/cc @brson @edunham

[brson]

I agree the installer should make the suggestion in a way that can be copy-pasted into .bashrc. I think it used to do this, but I may have deleted it at some point.

[steveklabnik]

@brson what's the right place for these kinds of issues these days? The mutlrust-rs projects? Is there a repository for the "new rustup"?

[alexcrichton]

rpath is enabled by default, so no longer necessary