Warnings in Pkg.build("Gurobi") with Julia v0.5

[rschwarz]

There's a deprecation warning, but then it stops building, but it still works (sorry for my impatience.)

julia> Pkg.status("Gurobi")
 - Gurobi                        0.2.4

julia> Pkg.build("Gurobi")
INFO: Building Gurobi
WARNING: `@unix_only` is deprecated, use `@static if is_unix()` instead
 in depwarn(::String, ::Symbol) at ./deprecated.jl:64
 in @unix_only(::Any) at ./deprecated.jl:492
 in include_from_node1(::String) at ./loading.jl:488
 in evalfile(::String, ::Array{String,1}) at ./loading.jl:504 (repeats 2 times)
 in cd(::##2#4, ::String) at ./file.jl:59
 in (::##1#3)(::IOStream) at ./none:13
 in open(::##1#3, ::String, ::String) at ./iostream.jl:113
 in eval(::Module, ::Any) at ./boot.jl:234
 in process_options(::Base.JLOptions) at ./client.jl:239
 in _start() at ./client.jl:318
while loading /home/bzfschwa/.julia/v0.5/Gurobi/deps/build.jl, in expression starting on line 16

julia> versioninfo()
Julia Version 0.5.0
Commit 3c9d753 (2016-09-19 18:14 UTC)
Platform Info:
  System: Linux (x86_64-pc-linux-gnu)
  CPU: Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Sandybridge)
  LAPACK: libopenblas64_
  LIBM: libopenlibm
  LLVM: libLLVM-3.7.1 (ORCJIT, ivybridge)

[mlubin]

PRs welcome