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Update Windows build instructions (#3453)

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* update windows build instructions

* move cross compilation section

* remove 32bit. The additional info about 32bit is described in footnotes

* update doc formating and order
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92
doc/build-cross.md
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@ -35,59 +35,61 @@ When building Dash Core, use
$ ./configure --prefix=`pwd`/depends/x86_64-apple-darwin11 $ ./configure --prefix=`pwd`/depends/x86_64-apple-darwin11
``` ```
Windows 64bit/32bit Cross-compilation Windows 64bit Cross-compilation
------------------------------- -------------------------------
Cross-compiling to Windows requires a few additional packages to be installed: The steps below can be performed on Ubuntu (including in a VM) or WSL. The depends system
will also work on other Linux distributions, however the commands for
installing the toolchain will be different.
```bash First, install the general dependencies:
$ sudo apt-get install nsis wine-stable wine64 bc
```
For Windows 64bit, install : sudo apt update
```bash sudo apt upgrade
$ sudo apt-get install g++-mingw-w64-x86-64 sudo apt install build-essential libtool autotools-dev automake pkg-config bsdmainutils curl git python3 cmake
```
If you're building on Ubuntu 17.04 or later, run these two commands, selecting the 'posix' variant for both, A host toolchain (`build-essential`) is necessary because some dependency
to work around issues with mingw-w64. See issue [8732](https://github.com/bitcoin/bitcoin/issues/8732) for more information. packages need to build host utilities that are used in the build process.
This also fixes linker issues related to std::thread and other threading related standard C++ libraries.
```
sudo update-alternatives --config x86_64-w64-mingw32-g++
sudo update-alternatives --config x86_64-w64-mingw32-gcc
```
For Windows 32bit, install: See [dependencies.md](dependencies.md) for a complete overview.
```bash
$ sudo apt-get install g++-mingw-w64-i686
```
If you're building on Ubuntu 17.04 or later, run these two commands, selecting the 'posix' variant for both, If you want to build the windows installer with `make deploy` you need [NSIS](https://nsis.sourceforge.io/Main_Page):
to fix linker issues related to std::thread and other threading related standard C++ libraries.
```
sudo update-alternatives --config x86_64-w64-mingw32-g++
sudo update-alternatives --config x86_64-w64-mingw32-gcc
```
Before building for Windows 32bit or 64bit, run sudo apt install nsis
``` Acquire the source in the usual way:
$ PATH=$(echo "$PATH" | sed -e 's/:\/mnt.*//g') # strip out problematic Windows %PATH% imported var
```
When building the dependencies, as described in [build-generic](build-generic.md), use git clone https://github.com/dashpay/dash.git
cd dash
```bash ### Building for 64-bit Windows
$ make HOST=x86_64-w64-mingw32 -j4
```
When building Dash Core, use The first step is to install the mingw-w64 cross-compilation tool chain:
```bash sudo apt install g++-mingw-w64-x86-64
$ ./configure --prefix=`pwd`/depends/x86_64-w64-mingw32
```
These commands will build for Windows 64bit. If you want to compile for 32bit, Ubuntu Bionic 18.04 <sup>[1](#footnote1)</sup>:
replace `x86_64-w64-mingw32` with `i686-w64-mingw32`.
sudo update-alternatives --config x86_64-w64-mingw32-g++ # Set the default mingw32 g++ compiler option to posix.
Once the toolchain is installed the build steps are common:
Note that for WSL the Dash Core source path MUST be somewhere in the default mount file system, for
example /usr/src/dash, AND not under /mnt/d/. If this is not the case the dependency autoconf scripts will fail.
This means you cannot use a directory that is located directly on the host Windows file system to perform the build.
Build using:
PATH=$(echo "$PATH" | sed -e 's/:\/mnt.*//g') # strip out problematic Windows %PATH% imported var
cd depends
make HOST=x86_64-w64-mingw32
cd ..
./autogen.sh # not required when building from tarball
CONFIG_SITE=$PWD/depends/x86_64-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.
ARM-Linux Cross-compilation ARM-Linux Cross-compilation
------------------- -------------------
@ -108,3 +110,13 @@ When building Dash Core, use
```bash ```bash
$ ./configure --prefix=`pwd`/depends/arm-linux-gnueabihf $ ./configure --prefix=`pwd`/depends/arm-linux-gnueabihf
``` ```
Footnotes
---------
<a name="footnote1">1</a>: Starting from Ubuntu Xenial 16.04, both the 32 and 64 bit Mingw-w64 packages install two different
compiler options to allow a choice between either posix or win32 threads. The default option is win32 threads which is the more
efficient since it will result in binary code that links directly with the Windows kernel32.lib. Unfortunately, the headers
required to support win32 threads conflict with some of the classes in the C++11 standard library, in particular std::mutex.
It's not possible to build the Dash Core code using the win32 version of the Mingw-w64 cross compilers (at least not without
modifying headers in the Dash Core source code).

60
doc/build-windows.md
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@ -3,50 +3,50 @@ WINDOWS BUILD NOTES
Below are some notes on how to build Dash Core for Windows. Below are some notes on how to build Dash Core for Windows.
Most developers use cross-compilation from Ubuntu to build executables for The options known to work for building Dash Core on Windows are:
Windows. Cross-compilation is also used to build the release binaries.
Currently only building on Ubuntu Trusty 14.04 or Ubuntu Zesty 17.04 or later is supported. * On Linux, using the [Mingw-w64](https://mingw-w64.org/doku.php) cross compiler tool chain. Ubuntu Bionic 18.04 is required
Building on Ubuntu Xenial 16.04 is known to be broken, see extensive discussion in issue [8732](https://github.com/bitcoin/bitcoin/issues/8732). and is the platform used to build the Dash Core Windows release binaries.
While it may be possible to do so with work arounds, it's potentially dangerous and not recommended. * On Windows, using [Windows
Subsystem for Linux (WSL)](https://docs.microsoft.com/windows/wsl/about) and the Mingw-w64 cross compiler tool chain.
* On Windows, using a native compiler tool chain such as [Visual Studio](https://www.visualstudio.com).
While there are potentially a number of ways to build on Windows (for example using msys / mingw-w64), Other options which may work, but which have not been extensively tested are (please contribute instructions):
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 Windows Subsystem For Linux * On Windows, using a POSIX compatibility layer application such as [cygwin](https://www.cygwin.com/) or [msys2](https://www.msys2.org/).
-------------------------------------------
Installing Windows Subsystem for Linux
---------------------------------------
With Windows 10, Microsoft has released a new feature named the [Windows With Windows 10, Microsoft has released a new feature named the [Windows
Subsystem for Linux](https://msdn.microsoft.com/commandline/wsl/about). This Subsystem for Linux (WSL)](https://docs.microsoft.com/windows/wsl/about). This
feature allows you to run a bash shell directly on Windows in an Ubuntu-based 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 environment. Within this environment you can cross compile for Windows without
the need for a separate Linux VM or server. the need for a separate Linux VM or server. Note that while WSL can be installed with
other Linux variants, such as OpenSUSE, the following instructions have only been
tested with Ubuntu.
This feature is not supported in versions of Windows prior to Windows 10 or on This feature is not supported in versions of Windows prior to Windows 10 or on
Windows Server SKUs. In addition, it is available [only for 64-bit versions of Windows Server SKUs. In addition, it is available [only for 64-bit versions of
Windows](https://msdn.microsoft.com/en-us/commandline/wsl/install_guide). Windows](https://docs.microsoft.com/windows/wsl/install-win10).
To get the bash shell, you must first activate the feature in Windows. Full instructions to install WSL are available on the above link.
To install WSL on Windows 10 with Fall Creators Update installed (version >= 16215.0) do the following:
1. Turn on Developer Mode 1. Enable the Windows Subsystem for Linux feature
* Open Settings -> Update and Security -> For developers * Open the Windows Features dialog (`OptionalFeatures.exe`)
* Select the Developer Mode radio button * Enable 'Windows Subsystem for Linux'
* Restart if necessary * Click 'OK' and restart if necessary
2. Enable the Windows Subsystem for Linux feature 2. Install Ubuntu
* From Start, search for "Turn Windows features on or off" (type 'turn') * Open Microsoft Store and search for "Ubuntu 18.04" or use [this link](https://www.microsoft.com/store/productId/9N9TNGVNDL3Q)
* Select Windows Subsystem for Linux (beta) * Click Install
* Click OK
* Restart if necessary
3. Complete Installation 3. Complete Installation
* Open a cmd prompt and type "bash" * Open a cmd prompt and type "Ubuntu1804"
* Accept the license
* Create a new UNIX user account (this is a separate account from your Windows account) * 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, starting After the bash shell is active, you can follow the instructions below, starting
with the "Cross-compilation" section. Compiling the 64-bit version is with the "Cross-compilation" section. Compiling the 64-bit version is
recommended but it is possible to compile the 32-bit version. recommended, but it is possible to compile the 32-bit version.
Cross-compilation Cross-compilation
------------------- -------------------
@ -57,8 +57,12 @@ Installation
------------- -------------
After building using the Windows subsystem it can be useful to copy the compiled 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 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 as they appear in the release `.zip` archive. This can be done in the following
way. This will install to `c:\workspace\dash`, for example: way. This will install to `c:\workspace\dash`, for example:
make install DESTDIR=/mnt/c/workspace/dash make install DESTDIR=/mnt/c/workspace/dash
You can also create an installer using:
make deploy