file-windows

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This aims to have everything one needs to build file on windows with visual studio.

External Dependencies

• regex: I am using PCRE2 version 10.30. Unfortunately this is not available on github with tags, so I commited it in this repo. I copied pcre2posix.h to regex.h.
• dirent: Dirent is not available on windows, so I used a implementation from tronkko.
• getopt: A similar problem exists with getopt, so I used a implementation from skandhurkat.

Linking

• all the dependencies are statically linked or compiled into the dll
• There is a .def file in windows headers describing the exports for the linker
• Since dirent defines some of the symbols used in files readelf.c and magic.c the include is "patched" into them in the CMakeLists.txt

Updating file

• Checkout the version in the file submodule.
• Update CMakeLists.txt
• Update appveyor.yml

Updating pcre2

• I disabled the test in the CMakeFile.txt manually, the rest is vanilla.