107 lines
4 KiB
Markdown
107 lines
4 KiB
Markdown
WINDOWS BUILD NOTES
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====================
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Below are some notes on how to build Bitcoin Core for Windows.
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Most developers use cross-compilation from Ubuntu to build executables for
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Windows. This is also used to build the release binaries.
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Currently only building on Ubuntu Trusty 14.04 is supported.
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Other versions are unsupported or known to be broken (e.g. Ubuntu Xenial 16.04).
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While there are potentially a number of ways to build on Windows (for example using msys / mingw-w64),
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using the Windows Subsystem For Linux is the most straightforward. If you are building with
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another method, please contribute the instructions here for others who are running versions
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of Windows that are not compatible with the Windows Subsystem for Linux.
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Compiling with Windows Subsystem For Linux
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-------------------------------------------
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With Windows 10, Microsoft has released a new feature named the [Windows
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Subsystem for Linux](https://msdn.microsoft.com/commandline/wsl/about). This
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feature allows you to run a bash shell directly on Windows in an Ubuntu-based
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environment. Within this environment you can cross compile for Windows without
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the need for a separate Linux VM or server.
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This feature is not supported in versions of Windows prior to Windows 10 or on
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Windows Server SKUs. In addition, it is available [only for 64-bit versions of
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Windows](https://msdn.microsoft.com/en-us/commandline/wsl/install_guide).
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To get the bash shell, you must first activate the feature in Windows.
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1. Turn on Developer Mode
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* Open Settings -> Update and Security -> For developers
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* Select the Developer Mode radio button
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* Restart if necessary
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2. Enable the Windows Subsystem for Linux feature
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* From Start, search for "Turn Windows features on or off" (type 'turn')
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* Select Windows Subsystem for Linux (beta)
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* Click OK
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* Restart if necessary
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3. Complete Installation
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* Open a cmd prompt and type "bash"
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* Accept the license
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* Create a new UNIX user account (this is a separate account from your Windows account)
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After the bash shell is active, you can follow the instructions below, starting
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with the "Cross-compilation" section. Compiling the 64-bit version is
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recommended but it is possible to compile the 32-bit version.
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Cross-compilation
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-------------------
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These steps can be performed on, for example, an Ubuntu VM. The depends system
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will also work on other Linux distributions, however the commands for
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installing the toolchain will be different.
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First, install the general dependencies:
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sudo apt-get install build-essential libtool autotools-dev automake pkg-config bsdmainutils curl
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A host toolchain (`build-essential`) is necessary because some dependency
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packages (such as `protobuf`) need to build host utilities that are used in the
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build process.
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## Building for 64-bit Windows
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To build executables for Windows 64-bit, install the following dependencies:
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sudo apt-get install g++-mingw-w64-x86-64 mingw-w64-x86-64-dev
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Then build using:
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cd depends
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make HOST=x86_64-w64-mingw32
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cd ..
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./autogen.sh # not required when building from tarball
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CONFIG_SITE=$PWD/depends/x86_64-w64-mingw32/share/config.site ./configure --prefix=/
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make
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## Building for 32-bit Windows
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To build executables for Windows 32-bit, install the following dependencies:
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sudo apt-get install g++-mingw-w64-i686 mingw-w64-i686-dev
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Then build using:
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cd depends
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make HOST=i686-w64-mingw32
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cd ..
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./autogen.sh # not required when building from tarball
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CONFIG_SITE=$PWD/depends/i686-w64-mingw32/share/config.site ./configure --prefix=/
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make
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## Depends system
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For further documentation on the depends system see [README.md](../depends/README.md) in the depends directory.
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Installation
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-------------
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After building using the Windows subsystem it can be useful to copy the compiled
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executables to a directory on the windows drive in the same directory structure
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as they appear in the release `.zip` archive. This can be done in the following
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way. This will install to `c:\workspace\bitcoin`, for example:
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make install DESTDIR=/mnt/c/workspace/bitcoin
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