Compile cctools for Windows

I wanted to try building cctools for Windows,

I first tried (and failed) with cctools-port
Next, I tried (and succeeded) with osxcross and Cygwin (32 and 64 bit).

Also note that I needed no iOS/OSX SDK for this!

Here's a brief recap on what I had to do...

Cygwin

Install Cygwin (either 32 or 64 bit)

After launching the Cygwin setup tool, install these packages.
Note that I tried to keep the list as clean as possible, but I did have to iterate on it, so it might contain something redundant. I kept the version numbers I got at the time of writing.

• autoconf                  (13-1)
• automake                (10-1)
• cmake                     (3.6.2-1)
• gcc-core                  (7.3.0-3)
• gcc-g++                   (7.3.0-3)
• gcc-objc                  (7.3.0-3)
• gcc-objc++              (7.3.0-3)
• git                           (2.17.0-1)
• make                        (4.2.1-2)
• openssl-devel           (1.0.2p-1)
• libtool
• libiconv-devel        (1.14-3)
• python2                   (2.7.14-1)

Osxcross

Clone osxcross into a directory and cd there.

Now, download the patch (some structs are already defined in cygwin) and put in the patches/ folder.
cctools-dlfcn.patch

Then, run the cctools part of the original osx_cross.sh, with the added patch:
osx_cross.sh

Now, you should have a set of tools ready for use on your machine!