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How to build using Cygwin
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=========================
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Cygwin provides ports of many GNU/Linux tools and a POSIX API layer. This is
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the most complete way to get the GNU/Linux terminal feel under Windows.
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Cygwin has a setup that helps you install all the tools you need.
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This document describes how to build openvpn-gui using Cygwin. It cross-compiles
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a native Windows executable, using the MinGW-w64 compilers that are available
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as packages in the Cygwin repository.
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Required packages
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-----------------
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To build openvpn-gui you need to have these packages installed, including
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their dependencies. You can install these packages using the standard
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``setup.exe`` of Cygwin.
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- autoconf
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- automake
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- pkg-config
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- make
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- mingw64-x86_64-gcc-core
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- mingw64-x86_64-g++
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- mingw64-x86_64-openssl
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Build
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-----
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To build use these commands:
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.. code-block:: bash
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autoreconf -iv
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./configure --host=x86_64-w64-mingw32
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make
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32-bit or 64-bit
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----------------
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The above describes how to build the 64-bit version of openvpn-gui. If you
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want to build the 32-bit version, simply replace ``x86_64`` with ``i686``.
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Both 32-bit and 64-bit version of Cygwin can build the 32-bit and 64-bit
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version of ``openvpn-gui.exe``. Just install the packages you need and use
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the right ``--host`` option.
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How to build using MSYS2
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========================
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One-time preperation
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--------------------
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Install MSYS2. Instructions and prerequisites can be found on the official website: https://msys2.github.io/
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Once installed use the `mingw64.exe` provided by MSYS2.
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Update the base MSYS2 system until no further updates are available using:
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.. code-block:: bash
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$ pacman -Syu
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You may have to restart your MINGW64 prompt between those updates.
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Now install the required development packages:
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.. code-block:: bash
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pacman -S base-devel mingw-w64-x86_64-{toolchain,openssl}
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Build
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-----
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You can build using these commands:
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.. code-block:: bash
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autoreconf -iv
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./configure
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make
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32-bit or 64-bit
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----------------
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The above describes how to build the 64-bit version of openvpn-gui.
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If you want to build the 32-bit version, use the `mingew32.exe` and in the package names simply replace ``x86_64`` with ``i686``.
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How to build using openvpn-build
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================================
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The `OpenVPN cross-compile buildsystem
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<https://github.com/OpenVPN/openvpn-build>`_ builds OpenVPN GUI along all the
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other OpenVPN dependencies. Instructions and automated scripts for setting up
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the buildsystem are available on the
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`Building OpenVPN using the generic buildsystem <https://community.openvpn.net/openvpn/wiki/BuildingUsingGenericBuildsystem>`_
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page on the OpenVPN community Wiki.
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