Specify the 'downloads' directory
I added a way to specify the folder to place downloaded files.
You can share a "downloads" folder with multiple windows installer build instances without copying from one instance to another.
rake DOWNLOADS="c:\downloads" # specify the folder to place downloaded files, absolute/relative
In addition above, I added the ability to handle dependency files more properly in multi-toolchain.
Download a set of dependency files from distinguished URL path and store them under the "downloads" sub-directory separately.
config/compilers/mingw64.rb is just a sample. You'll fail in downloading the dependency files, since there aren't such files.
:knap_path value is used for separation.
It looks promising!
I'm in the middle of getting some other stuff together, so give me a couple days and I'll look at it more closely. =)
may need updating the software versions.