Cygwin
Get that Linux feeling - on Windows
mingw64-x86_64-fltk-src: Fast Light Toolkit for Win64 toolchain (source)
2015-10-28 05:48 0 mingw64-x86_64-fltk-1.3.3-2.src/ 2015-10-28 05:48 1436 mingw64-x86_64-fltk-1.3.3-2.src/1.3.3-cross-fluid.patch 2015-10-28 05:48 4986376 mingw64-x86_64-fltk-1.3.3-2.src/fltk-1.3.3-source.tar.gz 2015-10-28 05:48 852 mingw64-x86_64-fltk-1.3.3-2.src/mingw64-x86_64-fltk.cygport