Not precompiling on Julia 0.6

[mauro3]

On Julia 0.6, RasterIO precompile fails (after a bunch of deprecation warnings) with:

ERROR: LoadError: LoadError: LoadError: UndefVarError: CPLVirtualMem not defined                                                       
Stacktrace:                                                                                                                            
 [1] include_from_node1(::String) at ./loading.jl:569                                                                                  
 [2] include(::String) at ./sysimg.jl:14                                                                                               
 [3] include_from_node1(::String) at ./loading.jl:569                                                                                  
 [4] include(::String) at ./sysimg.jl:14                                                                                               
 [5] include_from_node1(::String) at ./loading.jl:569                                                                                  
 [6] eval(::Module, ::Any) at ./boot.jl:235                                                                                            
 [7] _require(::Symbol) at ./loading.jl:483                                                                                            
 [8] require(::Symbol) at ./loading.jl:398                                                                                             
while loading /home/mauro/.julia/v0.6/RasterIO/src/clang/gdal_cfuns.jl, in expression starting on line 797                             
while loading /home/mauro/.julia/v0.6/RasterIO/src/gdal_api.jl, in expression starting on line 2
while loading /home/mauro/.julia/v0.6/RasterIO/src/RasterIO.jl, in expression starting on line 12

Does Clang.jl need to be re-run?