Scope of functions in libc crate: can we add things that require linking another "common" lib?

[kamalmarhubi]

How far outside of actual libc does the libc crate's scope go? Eg, I'm considering adding openpty(3) which requires linking with libutil on some platforms but not others[0]. Would this fit in libc?

[0] https://www.gnu.org/software/gnulib/manual/html_node/openpty.html

[alexcrichton]

Thanks for the issue! The scope of libc is currently defined in its RFC, which means that if it's available on some platform through the standard set of libraries that should be fine, but on other platforms we won't be able to have the API.

[kamalmarhubi]

👍 thanks, I'll make a PR :-)