Auto merge of #1519 - alfiedotwtf:master, r=alexcrichton

Currently getting:

note: /usr/bin/ld: /home/alfie/tmp/test/target/debug/build/test-39af07f97c17512a/out/libhello.a(hello.o):
relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC

diff --cc src/doc/build-script.md
Simple merge