target_env for x86_64-unknown-linux-gnux32

[malbarbo]

The target x86_64-unknown-linux-gnux32 was added to rustc with target_env = "gnu".

I was wondering if it should be "gnux32" because of this llvm definition.

Here are the target_env for some rustc targets:

mips-unknown-linux-uclibc -> uclibc
x86_64-unknown-linux-musl -> musl
mips64el-unknown-linux-gnuabi64 -> gnu
armv7-unknown-linux-gnueabihf -> gnu

What do you think?

[alexcrichton]

I'd probably stick with "gnu" as this is differentiated by target_pointer_width, and otherwise anything with target_env = "gnu" is basically just going to get a new cfg for gnux32 as well (if we add it)

[malbarbo]

Thanks @alexcrichton. Let's keep "gnu" then.