Add my Windows build script for posterity.

Linux/Mac coming shortly.

compile-scripts/README.md

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+This is the scripts I (James) use to maintain my builds on each platform.
+
+They're much less clever than 'download and compile' but they do enough for me
+and probably most other people, if you tweak the paths accordingly. The Mac
+and Linux ones require Ruby (which is usually pre-installed). There are no
+instructions - if you can't figure out what these do from reading the scripts,
+you almost certainly should not be using them!
+
+They all assume a top-level folder (called 'FGFS' in my case) which contains
+checkouts of simgear, flightgear, fgdata, OpenSceneGraph (into a dir named
+  'osg') and the windows-3rd-party dir in the case of Windows. It's assumed
+  you copy the script to that same dir, edit paths and run from there.
+
+Files will be installed into a subdir called 'dist'

compile-scripts/pull_build.bat

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+
+SET PATH=%PATH%;%ProgramFiles%\CMake\bin
+SET QT5SDK64=C:\Qt\5.6\msvc2015_64
+SET CMAKE_TOOLCHAIN="Visual Studio 14 Win64"
+SET ROOT_DIR=%CD%
+
+md osgbuild
+md sgbuild
+md fgbuild
+REM md fgrun-build
+
+cd simgear
+git pull --rebase
+
+cd ..\flightgear
+git pull --rebase
+
+REM cd ..\fgrun
+REM git pull --rebase
+
+cd ..\osgbuild
+cmake ..\osg -G %CMAKE_TOOLCHAIN% ^
+                 -DACTUAL_3RDPARTY_DIR:PATH=%ROOT_DIR%\windows-3rd-party\msvc140\3rdparty.x64 ^
+                 -DCMAKE_INSTALL_PREFIX:PATH=%ROOT_DIR%\dist ^
+                 -DOSG_USE_UTF8_FILENAME:BOOL=ON
+
+cmake --build . --config Release --target INSTALL
+cmake --build . --config Debug --target INSTALL
+
+cd ..\sgbuild
+cmake ..\simgear -G  %CMAKE_TOOLCHAIN% ^
+                 -DMSVC_3RDPARTY_ROOT=%ROOT_DIR%\windows-3rd-party\msvc140 ^
+                 -DOSG_FSTREAM_EXPORT_FIXED:BOOL=ON ^
+                 -DCMAKE_INSTALL_PREFIX:PATH=%ROOT_DIR%\dist
+cmake --build . --config Release --target INSTALL
+cmake --build . --config Debug --target INSTALL
+
+cd ..\fgbuild
+cmake ..\flightgear -G  %CMAKE_TOOLCHAIN% ^
+                    -DMSVC_3RDPARTY_ROOT=%ROOT_DIR%\windows-3rd-party\msvc140 ^
+                    -DCMAKE_INSTALL_PREFIX:PATH=%ROOT_DIR%\dist ^
+                    -DCMAKE_PREFIX_PATH=%QT5SDK64% ^
+                    -DOSG_FSTREAM_EXPORT_FIXED:BOOL=ON
+cmake --build . --config Release --target INSTALL
+cmake --build . --config Debug --target INSTALL
+
+REM cd ..\fgrun-build
+REM cmake ..\fgrun -G  %CMAKE_TOOLCHAIN% ^
+REM                     -DMSVC_3RDPARTY_ROOT=C:\FGFS\windows-3rd-party\msvc140 ^
+REM                     -DCMAKE_INSTALL_PREFIX:PATH=C:\FGFS\dist
+REM cmake --build . --config Release --target INSTALL
+REM cmake --build . --config Debug --target INSTALL