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doc: Improve windows build instructions using Linux subsystem

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I did a build on a windows 10 laptop and took notes, and tried
to improve the document:

- It's the Linux subsystem for Windows, not the other way around.

- Split out dependencies: general ones, 64-bit, 32-bit. Remove the
  reference to `build-unix.md`, easy enough to be self-contained.

- Place 64-bit instructions first. 99% will want these.

- Installation instructions: recommend using `/` for prefix, same as we
  do on gitian builds. This will allow copying the files to a usable
  (from Windows) place using just `make DESTDIR=...`.

- Remove double spaces / consistent width reformatting.
This commit is contained in:
Wladimir J. van der Laan 2016-11-25 09:20:00 +01:00
parent d932159f34
commit dd34570c45
1 changed files with 49 additions and 23 deletions
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72
doc/build-windows.md
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@ -7,16 +7,18 @@ Most developers use cross-compilation from Ubuntu to build executables for
Windows. This is also used to build the release binaries.
While there are potentially a number of ways to build on Windows (for example using msys / mingw-w64),
using the Windows Subsystem For Linux is the most straight forward. If you are building with
an alternative method, please contribute the instructions here for others who are running versions
using the Windows Subsystem For Linux is the most straightforward. If you are building with
another method, please contribute the instructions here for others who are running versions
of Windows that are not compatible with the Windows Subsystem for Linux.
Compiling with the Windows Subsystem For Linux
-------------------
Compiling with Windows Subsystem For Linux
-------------------------------------------
With Windows 10, Microsoft has released a new feature named the
[Windows Subsystem for Linux](https://msdn.microsoft.com/commandline/wsl/about). This feature allows you to run a bash shell directly on Windows in an Ubuntu based
environment. Within this environment you can cross compile for Windows without the need for a separate Linux VM or Server.
With Windows 10, Microsoft has released a new feature named the [Windows
Subsystem for Linux](https://msdn.microsoft.com/commandline/wsl/about). This
feature allows you to run a bash shell directly on Windows in an Ubuntu based
environment. Within this environment you can cross compile for Windows without
the need for a separate Linux VM or Server.
This feature is not supported in versions of Windows prior to Windows 10 or on Windows Server SKUs.
@ -37,9 +39,6 @@ To get the bash shell, you must first activate the feature in Windows.
* Create a new UNIX user account (this is a separate account from your Windows account)
After the bash shell is active, you can follow the instructions below for Windows 64-bit Cross-compilation.
When building dependencies within the 'depends' folder, you may encounter an error building
the protobuf dependency. If this occurs, re-run the command with sudo. This is likely
a bug with the Windows Subsystem for Linux feature and may be fixed with a future update.
Cross-compilation
-------------------
@ -48,28 +47,55 @@ These steps can be performed on, for example, an Ubuntu VM. The depends system
will also work on other Linux distributions, however the commands for
installing the toolchain will be different.
Make sure you install the build requirements mentioned in
[build-unix.md](/doc/build-unix.md).
Then, install the toolchains and curl:
First, install the general dependencies:
sudo apt-get install g++-mingw-w64-i686 mingw-w64-i686-dev g++-mingw-w64-x86-64 mingw-w64-x86-64-dev curl
sudo apt-get install build-essential libtool autotools-dev automake pkg-config bsdmainutils curl
To build executables for Windows 32-bit:
A host toolchain (`build-essential`) is necessary because some dependency
packages (such as `protobuf`) need to build host utilities that are used in the
build process.
cd depends
make HOST=i686-w64-mingw32 -j4
cd ..
./autogen.sh # not required when building from tarball
./configure --prefix=`pwd`/depends/i686-w64-mingw32
make
## Building for 64-bit Windows
To build executables for Windows 64-bit:
To build executables for Windows 64-bit, install the following dependencies:
sudo apt-get install g++-mingw-w64-x86-64 mingw-w64-x86-64-dev
Then build using:
cd depends
make HOST=x86_64-w64-mingw32 -j4
cd ..
./autogen.sh # not required when building from tarball
./configure --prefix=`pwd`/depends/x86_64-w64-mingw32
CONFIG_SITE=$PWD/depends/x86_64-w64-mingw32/share/config.site ./configure --prefix=/
make
## Building for 32-bit Windows
To build executables for Windows 32-bit, install the following dependencies:
sudo apt-get install g++-mingw-w64-i686 mingw-w64-i686-dev
Then build using:
cd depends
make HOST=i686-w64-mingw32 -j4
cd ..
./autogen.sh # not required when building from tarball
CONFIG_SITE=$PWD/depends/i686-w64-mingw32/share/config.site ./configure --prefix=/
make
## Depends system
For further documentation on the depends system see [README.md](../depends/README.md) in the depends directory.
Installation
-------------
After building using the Windows subsystem it can be useful to copy the compiled
executables to a directory on the windows drive in the same directory structure
as they appear in the release `.zip` archive. This can be done in the following
way. This will install to `c:\workspace\bitcoin`, for example:
make install DESTDIR=/mnt/c/workspace/bitcoin