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Rewrite the MSYS2 build instructions
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testers needed!

Rewrite cross-compiling instructions to use docker and opensuse 13.1

and fix markdown lists

Vagrant instead of Docker

adjust msys2 setup steps

Test with msys2's python2

Remove path recommendation, not really needed any more

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@tkelman
tkelman committed Jun 16, 2015
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192 changes: 65 additions & 127 deletions README.windows.md
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Expand Up @@ -25,11 +25,9 @@ Both the 32-bit and 64-bit versions are supported.
The 32-bit (i686) binary will run on either a 32-bit and 64-bit operating system.
The 64-bit (x86_64) binary will only run on 64-bit Windows and will otherwise refuse to launch.

1. Download and install [7-Zip](http:https://www.7-zip.org/download.html). Install the full program, not just the command line version.
1. [Download](http:https://julialang.org/downloads) the latest version of Julia. Extract the binary to a reasonable destination folder, e.g. `C:\julia`.

2. [Download](http:https://julialang.org/downloads) the latest version of Julia. Extract the binary to a reasonable destination folder, e.g. `C:\julia`.

3. Double-click the file `julia.bat` to launch Julia.
2. Double-click the `julia` shortcut to launch Julia.

# Line endings

Expand All @@ -56,80 +54,48 @@ or edit `%USERPROFILE%\.gitconfig` and add/edit the lines:
## Compiling with MinGW/MSYS2

### MSYS2 provides a robust MSYS experience.
### The instructions in this section were tested with the latest versions of all packages specified as of 2014-02-28.

1. Install [7-Zip](http:https://www.7-zip.org/download.html).

2. Install [Python 2.x](http:https://www.python.org/download/releases). Do **not** install Python 3.

3. Install [CMake](http:https://www.cmake.org/download/).

4. Install [MinGW-builds](http:https://sourceforge.net/projects/mingwbuilds/), a Windows port of GCC, as follows. Do **not** use the regular MinGW distribution.
1. Download the [MinGW-builds installer](http:https://downloads.sourceforge.net/project/mingwbuilds/mingw-builds-install/mingw-builds-install.exe).
2. Run the installer. When prompted, choose:
- Version: the most recent version (these instructions were tested with 4.8.1)
- Architecture: `x32` or `x64` as appropriate and desired.
- Threads: `win32` (not posix)
- Exception: `sjlj` (for x32) or `seh` (for x64). Do not choose dwarf2.
- Build revision: most recent available (tested with 5)
3. Do **not** install to a directory with spaces in the name. You will have to change the default installation path, for example,
- `C:\mingw-builds\x64-4.8.1-win32-seh-rev5` for 64 bits
- `C:\mingw-builds\x32-4.8.1-win32-sjlj-rev5` for 32 bits
1. Install [CMake](http:https://www.cmake.org/download/).

5. Install and configure [MSYS2](http:https://sourceforge.net/projects/msys2), a minimal POSIX-like environment for Windows.
2. Install and configure [MSYS2](https:https://msys2.github.io), a minimal POSIX-like environment for Windows.

1. Download the latest base [32-bit](http:https://sourceforge.net/projects/msys2/files/Base/i686/) or [64-bit](http:https://sourceforge.net/projects/msys2/files/Base/x86_64/) distribution, consistent with the architecture you chose for MinGW-builds. The archive will have a name like `msys2-base-x86_64-yyyymmdd.tar.xz` and these instructions were tested with `msys2-base-x86_64-20140216.tar.xz`.
1. Download and run the latest installer for the [32-bit](http:https://sourceforge.net/projects/msys2/files/Base/i686/) or [64-bit](http:https://sourceforge.net/projects/msys2/files/Base/x86_64/) distribution. The installer will have a name like `msys2-i686-yyyymmdd.exe` or `msys2-x86_64-yyyymmdd.exe`.

2. Using [7-Zip](http:https://www.7-zip.org/download.html), extract the archive to any convenient directory.
- *N.B.* Some versions of this archive contain zero-byte files that clash with existing files. If prompted, choose **not** to overwrite existing files.
- You may need to extract the tarball in a separate step. This will create an `msys32` or `msys64` directory, according to the architecture you chose.
- Move the `msys32` or `msys64` directory into your MinGW-builds directory, which is `C:\mingw-builds` if you followed the suggestions in step 3. We will omit the "32" or "64" in the steps below and refer to this as "the msys directory".
2. Double-click `msys2_shell.bat` in the installed msys directory. Initialize the MSYS2 base system using the `pacman` package manager included in MSYS2:

3. Double-click `msys2_shell.bat` in the msys directory. This will initialize MSYS2. The shell will tell you to `exit` and restart the shell. For now, ignore it.
```
pacman --needed -Sy bash pacman pacman-mirrors msys2-runtime
```

4. Update MSYS2 and install packages required to build julia, using the `pacman` package manager included in MSYS2:
3. Exit and restart MSYS2, then install packages required to build julia:

```
pacman-key --init #Download keys
pacman -Syu #Update package database and full system upgrade
```
Now `exit` the MSYS2 shell and restart it, *even if you already restarted it above*. This is necessary in case the system upgrade updated the main MSYS2 libs. Reopen the MSYS2 shell and continue with:

```
pacman -S diffutils git m4 make patch tar msys/openssh
pacman -S diffutils git m4 make patch tar python2 p7zip msys/openssh
```

5. Configure your MSYS2 shell for convenience:
4. Configuration of MSYS2 is complete. Now `exit` the MSYS2 shell.

3. Build Julia and its dependencies from source.
1. Open a new MSYS2 shell and clone the Julia sources
```
echo "mount C:/Python27 /python" >> ~/.bashrc
# uncomment ONE of the following two lines
#echo "mount C:/mingw-builds/x64-4.8.1-win32-seh-rev5/mingw64 /mingw" >> ~/.bashrc
#echo "mount C:/mingw-builds/x32-4.8.1-win32-sjlj-rev5/mingw32 /mingw" >> ~/.bashrc
echo "export PATH=/usr/local/bin:/usr/bin:/opt/bin:/mingw/bin:/python" >> ~/.bashrc
git clone https://github.com/JuliaLang/julia.git
cd julia
```

*N.B.* The `export` clobbers whatever `$PATH` is already defined. This is suggested to avoid path-masking. If you use MSYS2 for purposes other than building Julia, you may prefer to append rather than clobber.

*N.B.* All of the path-separators in the mount commands are unix-style.


6. Configuration of the toolchain is complete. Now `exit` the MSYS2 shell.

6. Build Julia and its dependencies from source.
1. Relaunch the MSYS2 shell and type

2. Run the following script to download the correct versions of the MinGW-w64 compilers
```
. ~/.bashrc # Some versions of MSYS2 do not run this automatically
contrib/windows/get_toolchain.sh 32 # for 32 bit Julia
# or
contrib/windows/get_toolchain.sh 64 # for 64 bit Julia
```

Ignore any warnings you see from `mount` about `/mingw` and `/python` not existing.

2. Get the Julia sources
```
git clone https://github.com/JuliaLang/julia.git
cd julia
Then follow the printed instructions by running either
```
export PATH=$PWD/usr/i686-w64-mingw32/sys-root/mingw/bin:$PATH # for 32 bit Julia
# or
export PATH=$PWD/usr/x86_64-w64-mingw32/sys-root/mingw/bin:$PATH # for 64 bit Julia
```
to add the downloaded MinGW-w64 compilers to your path (temporarily, only needed during the shell session when you build Julia).

3. Specify the location where you installed CMake

Expand All @@ -138,15 +104,16 @@ or edit `%USERPROFILE%\.gitconfig` and add/edit the lines:
```

4. Start the build
```
```
make -j 4 # Adjust the number of cores (4) to match your build environment.
```
7. Setup Package Development Environment

4. Setup Package Development Environment
1. The `Pkg` module in Base provides many convenient tools for [developing and publishing packages](http:https://docs.julialang.org/en/latest/manual/packages/).
One of the packages added through pacman above was `openssh`, which will allow secure access to GitHub APIs.
Follow GitHub's [guide](https://help.github.com/articles/generating-ssh-keys) to setting up SSH keys to ensure your local machine can communicate with GitHub effectively.

5. In case of the issues with building packages (i.e. ICU fails to build with the following error message ```error compiling xp_parse: error compiling xp_make_parser: could not load module libexpat-1: %```) run ```make win-extras``` and then copy everything from the ```dist-extras``` folder into ```usr/bin```.
2. In case of the issues with building packages (i.e. ICU fails to build with the following error message ```error compiling xp_parse: error compiling xp_make_parser: could not load module libexpat-1: %```) run ```make win-extras``` and then copy everything from the ```dist-extras``` folder into ```usr/bin```.

## Cygwin-to-MinGW cross compiling

Expand Down Expand Up @@ -208,69 +175,40 @@ Julia can be also compiled from source in [Cygwin](http:https://www.cygwin.com), using

If you prefer to cross-compile, the following steps should get you started.

### Ubuntu and Mac Dependencies (these steps will work for almost any linux platform)

First, you will need to ensure your system has the required dependencies. We need wine (>=1.7.5),
a system compiler, and some downloaders.

On Ubuntu:

apt-add-repository ppa:ubuntu-wine/ppa
apt-get upate
apt-get install wine1.7 subversion cvs gcc wget p7zip-full


On Mac: Install XCode, XCode command line tools, X11 (now [XQuartz](http:https://xquartz.macosforge.org/)),
and [MacPorts](http:https://www.macports.org/install.php) or [Homebrew](http:https://mxcl.github.io/homebrew/).
Then run ```port install wine wget``` or ```brew install wine wget```, as appropriate.

On Both:

Unfortunately, the version of gcc installed by Ubuntu targets pthreads.
On Mac, the situation is similar: the version in MacPorts is very old and Homebrew does not have it.
So first we need to get a cross-compile version of gcc.
Most binary packages appear to not include gfortran, so we will need to compile it from source (or ask @vtjnash to send you a tgz of his build).
This is typically quite a bit of work, so we will use [this script](http:https://sourceforge.net/projects/mingw-w64-dgn/) to make it easy.

1. `svn checkout svn checkout svn:https://svn.code.sf.net/p/mingw-w64-dgn/code/trunk mingw-w64-dgn-code`
2. `cd mingw-w64-dgn`
3. edit `rebuild_cross.sh` and make the following two changes:
a. uncomment `export MAKE_OPT="-j 2"`, if appropriate for your machine
b. add `fortran` to the end of `--enable-languages=c,c++,objc,obj-c++`
5. `bash update_source.sh`
4. `bash rebuild_cross.sh`
5. `mv cross ~/cross-w64`
6. `export PATH=$HOME/cross-w64/bin:$PATH` # NOTE: it is important that you remember to always do this before using make in the following steps!, you can put this line in your .profile to make it easy

Then we can essentially just repeat these steps for the 32-bit compiler, reusing some of the work:

7. `cd ..`
8. `cp -a mingw-w64-dgn mingw-w32-dgn`
9. `cd mingw-w32-dgn`
10. `rm -r cross build`
11. `bash rebuild_cross.sh 32r`
12. `mv cross ~/cross-w32`
13. `export PATH=$HOME/cross-w32/bin:$PATH` # NOTE: it is important that you remember to always do this before using make in the following steps!, you can put this line in your .profile to make it easy

Note: for systems that support rpm-based package managers, the OpenSUSE build service appears to contain a fully up-to-date versions of the necessary dependencies.

### Arch Linux Dependencies

1. Install the following packages from the official Arch repository:
`sudo pacman -S cloog gcc-ada libmpc p7zip ppl subversion zlib`
2. The rest of the prerequisites consist of the mingw-w64 packages, which are available in the AUR Arch repository. They must be installed exactly in the order they are given or else their installation will fail. The `yaourt` package manager is used for illustration purposes; you may instead follow the [Arch instructions for installing packages from AUR](https://wiki.archlinux.org/index.php/Arch_User_Repository#Installing_packages) or may use your preferred package manager. To start with, install `mingw-w64-binutils` via the command
`yaourt -S mingw-w64-binutils`
3. `yaourt -S mingw-w64-headers-svn`
4. `yaourt -S mingw-w64-headers-bootstrap`
5. `yaourt -S mingw-w64-gcc-base`
6. `yaourt -S mingw-w64-crt-svn`
7. Remove `mingw-w64-headers-bootstrap` without removing its dependent mingw-w64 installed packages by using the command
`yaourt -Rdd mingw-w64-headers-bootstrap`
8. `yaourt -S mingw-w64-winpthreads`
9. Remove `mingw-w64-gcc-base` without removing its installed mingw-w64 dependencies:
`yaourt -Rdd mingw-w64-gcc-base`
10. Complete the installation of the required `mingw-w64` packages:
`yaourt -S mingw-w64-gcc`
For maximum compatibility with packages that use [WinRPM.jl](https://github.com/JuliaLang/WinRPM.jl) for binary dependencies on Windows, it is recommended that you use OpenSUSE 13.1 for cross-compiling a Windows build of Julia. If you use a different Linux distribution or OS X, install [Vagrant](http:https://www.vagrantup.com/downloads) and use the following `Vagrantfile`:
```
# Vagrantfile for MinGW-w64 cross-compilation of Julia
$script = <<SCRIPT
# Change the following to i686-w64-mingw32 for 32 bit Julia:
export XC_HOST=x86_64-w64-mingw32
# Change the following to 32 for 32 bit Julia:
export BITS=64
zypper addrepo http:https://download.opensuse.org/repositories/windows:mingw:win$BITS/openSUSE_13.1/windows:mingw:win$BITS.repo
zypper --gpg-auto-import-keys refresh
zypper -n install --no-recommends git make cmake tar wine which curl \
python python-xml patch gcc-c++ m4 p7zip.i586 libxml2-tools
zypper -n install mingw$BITS-cross-gcc-c++ mingw$BITS-cross-gcc-fortran \
mingw$BITS-libstdc++6 mingw$BITS-libgfortran3 mingw$BITS-libssp0
# opensuse packages the mingw runtime dlls under sys-root/mingw/bin, not /usr/lib64/gcc
cp /usr/$XC_HOST/sys-root/mingw/bin/*.dll /usr/lib*/gcc/$XC_HOST/*/
git clone git:https://github.com/JuliaLang/julia.git julia
cd julia
make -j4 win-extras julia-ui-release
export WINEDEBUG=-all # suppress wine fixme's
# this last step may need to be run interactively
make -j4 binary-dist
SCRIPT
Vagrant.configure("2") do |config|
config.vm.box = "chef/opensuse-13.1"
config.vm.provider :virtualbox do |vb|
# Use VBoxManage to customize the VM. For example to change memory:
vb.memory = 2048
end
config.vm.provision :shell, :inline => $script
end
```

### Cross-building Julia

Expand All @@ -281,7 +219,7 @@ Finally, the build and install process for Julia:
3. `make`
4. `make win-extras` (Necessary before running `make binary-dist`p)
5. `make binary-dist`
6. move the julia-* directory / zip file to the target machine
6. move the julia-*.exe installer to the target machine

If you are building for 64-bit windows, the steps are essentially the same. Just replace i686 in XC_HOST with x86_64. (note: on Mac, wine only runs in 32-bit mode)

Expand Down
2 changes: 1 addition & 1 deletion deps/Makefile
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Expand Up @@ -1857,7 +1857,7 @@ $(VIRTUALENV_SOURCE): virtualenv-$(VIRTUALENV_VER).tar.gz
$(VIRTUALENV_TARGET): $(VIRTUALENV_SOURCE)
"$(shell ./find_python2)" $< $@
ifeq ($(BUILD_OS), WINNT)
[ -e $@/Scripts ] && ! [ -e $@/bin ] && cmd //C mklink //J $@\\bin $@\\Scripts
-[ -e $@/Scripts ] && ! [ -e $@/bin ] && cmd //C mklink //J $@\\bin $@\\Scripts
endif
touch -c $@

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