+2 Install Qt
+
+ Download the latest Qt for Open Source C++ development on Windows (VS2015)
+ from https://qt.io/download-open-source/
+ Qt 5.6.x is recommended, but 5.7.x or later versions should work as well.
+ If you want to build LyX as 32bit application, you need Qt x86.
+ If you want to build LyX as 64bit application, you need Qt x64.
+ Make sure that the bin subfolder of the Qt installation (e.g.
+ C:\Qt\Qt5.6.1\5.6\msvc2015\bin) is listed in the PATH environment variable.
+
+3 Install Python
+
+ Install the latest Python 2.x or 3.x version from
+ https://www.python.org/downloads/
+
+4 Install CMake
+
+ Install the latest CMake from http://www.cmake.org
+
+5 Configure
+
+ - Open the "Developer Command Prompt for VS2015" from the
+ "Visual Studio 2015\Visual Studio Tools" subfolder of the start menu.
+ Run the CMake GUI from the command window that was opened.
+ Alternatively, you can create a .bat file that first contains the line
+ call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86
+ and then calls the CMake GUI and use this .bat file to start CMake.
+ This is for building a 32bit LyX, if you want to build a 64bit LyX replace
+ 'x86' by 'amd64'.
+ The MSVC 2015 command prompt or vcvarsall.bat set some environment
+ variables that are needed for CMake to find the compiler.
+
+ - Set the source code path to C:\LyX\lyx-23
+ Set the build path to C:\LyX\lyx-23-build
+ Click Configure and set the generator to "Visual Studio 14 2015" to
+ build a 32bit LyX or "Visual Studio 14 2015 Win64" to build a 64bit LyX.
+
+ - Set LYX_USE_QT to QT5 and click Configure.
+
+ - Enable LYX_DEPENDENCIES_DOWNLOAD and click Configure.
+ Pre-compiled dependencies will automatically be downloaded.
+ If you installed the dependencies manually, set GNUWIN32_DIR instead
+ to the folder that contains the dependencies and click Configure.
+
+ - Enable the LYX_INSTALL option and click Configure.
+
+ - Click Generate.
+
+6 Compile
+
+ A Microsoft Visual C++ solution should have been generated at
+ C:\LyX\lyx-23-build\lyx.sln
+ Compile the INSTALL project to get a LyX installation in
+ C:\LyX\lyx-23-build\LYX_INSTALLED.
+
+7 Copy dependencies
+
+ Copy
+ - C:\LyX\lyx-23-build\msvc2015-deps\lyx-windows-deps-msvc2015\bin
+ - C:\LyX\lyx-23-build\msvc2015-deps\lyx-windows-deps-msvc2015\imagemagick
+ - C:\LyX\lyx-23-build\msvc2015-deps\lyx-windows-deps-msvc2015\Python
+ - C:\LyX\lyx-23-build\msvc2015-deps\lyx-windows-deps-msvc2015\ghostscript
+ - C:\LyX\lyx-23-build\msvc2015-deps\lyx-windows-deps-msvc2015\Resources
+ to C:\LyX\lyx-23-build\LYX_INSTALLED
+
+ And copy from the Qt bin directory (see item 2 "Install Qt" above)
+ Qt5Core.dll
+ Qt5Gui.dll
+ Qt5Svg.dll
+ Qt5Widgets.dll
+ Qt5WinExtras.dll
+ Qt5Cored.dll (if compiling Debug version)
+ Qt5Guid.dll (if compiling Debug version)
+ Qt5Svgd.dll (if compiling Debug version)
+ Qt5Widgetsd.dll (if compiling Debug version)
+ Qt5WinExtrasd.dll (if compiling Debug version)
+ to C:\LyX\lyx-23-build\LYX_INSTALLED\bin
+
+8 Define path prefix
+
+ Add the following line to C:\LyX\lyx-23-build\LYX_INSTALLED\Resources\lyxrc.dist,
+ so LyX will find the bundled tools such as Python, ImageMagick
+ and Ghostscript:
+
+ \path_prefix "$LyXDir\bin;$LyXDir\Python;$LyXDir\imagemagick;$LyXDir\ghostscript"
+
+ You may also add the location of your LaTeX installation if it's not on the
+ system PATH, and the location of JabRef.
+
+9 Start LyX
+
+ C:\LyX\lyx-23-build\LYX_INSTALLED\bin\lyx.exe
+
+
+Creating the Installer
+======================
+
+ - Get NSIS from http://nsis.sourceforge.net
+ - In the LyX source directory, go to development\Win32\packaging\installer
+ - Copy the 3 dll-files from there to the DLL folder of the NSIS installation
+ - Check whether the file locations/paths in settings.nsh match your setup.
+ - Right-click on lyx.nsi and click "Compile NSIS Script".
+
+
+Compiling with GCC with MinGW64 + MSYS2 Environment using autotools
+===================================================================
+1 Install MSYS2, MINGW64, Qt5+
+ https://wiki.qt.io/MSYS2
+2 Install bc (Bench calculater), which autotools uses for some reason to compile LyX
+ pacman -S bc
+3 Run the standard autotools install (Adapt paths and arguments accordingly)
+ ./autogen.sh
+ ./configure --without-x --enable-qt5 --disable-debug --enable-optimization --prefix=/mingw64
+ make
+ make install
+
+
+Cross-Compiling on unix with MXE using autotools
+=================================================
+1 Install MXE: http://mxe.cc
+ You can either install from sources, the generic .tar binaries or debian .deb packages.
+ Installing the following .deb packages will drag in all needed dependencies:
+ mxe-x86-64-w64-mingw32.shared-file
+ mxe-x86-64-w64-mingw32.shared-gcc
+ mxe-x86-64-w64-mingw32.shared-libiconv
+ mxe-x86-64-w64-mingw32.shared-qtimageformats
+ mxe-x86-64-w64-mingw32.shared-qtsvg
+ mxe-x86-64-w64-mingw32.shared-qtwinextras
+ Of course you can also use the static and/or 32bit versions.
+2 Run the standard autotools install (Adapt paths and arguments accordingly)
+ ./autogen.sh
+ mkdir builddir-mingw
+ cd builddir-mingw
+ PATH="/usr/lib/mxe/usr/bin:$PATH" ../configure --host=x86-64-w64-mingw32.shared --with-qt-dir=/usr/lib/mxe/usr/x86_64-w64-mingw32.shared/qt5 --enable-qt5 --with-included-boost --with-included-hunspell --with-included-mythes --disable-debug --enable-optimization --prefix=/mingw64
+ PATH="/usr/lib/mxe/usr/bin:$PATH" make
+ PATH="/usr/lib/mxe/usr/bin:$PATH" DESTDIR=/tmp/lyxinstall make install
+ This uses the paths from the 64bit shared MXE version installed from .deb packages.
+3 If you want to run the resulting lyx.exe from the build directory using wine,
+ create symlinks for all needed .dlls:
+ cd builddir-mingw/src
+ ln -s /usr/lib/mxe/usr/x86_64-w64-mingw32.shared/bin/*.dll .
+ ln -s /usr/lib/mxe/usr/x86_64-w64-mingw32.shared/qt5/bin/*.dll .
+ wine64 lyx.exe