Compiling LyX 2.3 for Win32 and creating Windows installer
==========================================================

It's recommended to compile LyX using Microsoft Visual C++ 2015 and CMake.


Compiling with Microsoft Visual C++
===================================

	These instructions assume the LyX source code is in C:\LyX\lyx-23
	You can also use another directory if you prefer.

1	Install MSVC 2015

	If you don't have Visual C++ 2015 installed, get the free Community edition
	from https://www.visualstudio.com/

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.

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

	- Run the CMake GUI.

	- 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.

	- Enable LYX_DEPENDENCIES_DOWNLOAD and click Configure.
	  Pre-compiled dependencies will automatically be downloaded.

	- Set QT_QMAKE_EXECUTABLE to e.g.
	  C:\Qt\qt-everywhere-opensource-src-5.6.1\bin\qmake.exe
	  and Configure again.

	- Enable the LYX_INSTALL option, set CMAKE_INSTALL_PREFIX to
	  C:\LyX\lyx-23-install and click Configure.

	- Check the Advanced checkbox.
	  Set GETTEXT_MSGFMT_EXECUTABLE to
	  C:\LyX\lyx-23-build\msvc2015-deps\lyx-windows-deps-msvc2015\gettext-tools\msgfmt.exe,
	  and do the same for the other gettext tools.

	- 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-install

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-install

	And copy from the Qt bin directory
	(e.g. C:\Qt\bin)
	QtCore5.dll
	QtGui5.dll
	QtCore5d.dll (if compiling Debug version)
	QtGui5d.dll (if compiling Debug version)
	to C:\LyX\lyx-23-install\bin

8	Define path prefix

	Add the following line to C:\LyX\lyx-23-install\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-install\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