Auto merge of #1390 - gnzlbg:ref_gnu, r=gnzlbg

src/unix/linux_like/linux/gnu/align.rs

src/unix/linux_like/linux/gnu/b32/arm.rs

src/unix/linux_like/linux/gnu/b32/mips.rs

src/unix/linux_like/linux/gnu/b32/mod.rs

src/unix/linux_like/linux/gnu/b32/powerpc.rs

src/unix/linux_like/linux/gnu/b32/x86.rs

src/unix/linux_like/linux/gnu/b64/aarch64.rs

src/unix/linux_like/linux/gnu/b64/mips64.rs

src/unix/linux_like/linux/gnu/b64/mod.rs

src/unix/linux_like/linux/gnu/b64/powerpc64.rs

src/unix/linux_like/linux/gnu/b64/s390x.rs

src/unix/linux_like/linux/gnu/b64/sparc64.rs

src/unix/linux_like/linux/gnu/b64/x86_64/mod.rs

src/unix/linux_like/linux/gnu/b64/x86_64/not_x32.rs

src/unix/linux_like/linux/gnu/b64/x86_64/x32.rs

src/unix/linux_like/linux/gnu/mod.rs

src/unix/linux_like/linux/gnu/no_align.rs

src/unix/linux_like/linux/mips/mod.rs

src/unix/linux_like/linux/mod.rs

src/unix/linux_like/linux/other/align.rs