Auto merge of #1068 - gnzlbg:patch-1, r=alexcrichton
Auto merge of #1068 - gnzlbg:patch-1, r=alexcrichton

sparc64 tests are passing again

Closes #1064 .

rust-lang-nursery/libc,rust-lang/libc,rust-lang/libc,rust-lang-nursery/libc,rust-lang/libc,rust-lang-nursery/libc