Auto merge of #32407 - alexcrichton:netbsd-gcc-s-link, r=aturon
Auto merge of #32407 - alexcrichton:netbsd-gcc-s-link, r=aturon

std: Link to gcc_s on NetBSD

Currently the nightlies we're producing fail when linking some C code into a
Rust application with the error message:

    libgcc_s.so.1: error adding symbols: DSO missing from command line

By linking `gcc_s` instead of `gcc` this error goes away. I haven't tested this
on NetBSD itself, but should help get the Linux cross-compile image moreso up
and working!

graydon/rust,graydon/rust,GBGamer/rust,graydon/rust,aidancully/rust,GBGamer/rust,graydon/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,graydon/rust,GBGamer/rust,aidancully/rust,aidancully/rust,graydon/rust,GBGamer/rust