在ubuntu13.10下交叉编译VLC2.1.0 win32版

官方的编译指导文档：https://wiki.videolan.org/Win32Compile/ 

本人在此版本基础上增加注释，用红色或者黑底黄字标注。

Win32Compile

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This page will help you to compile VLC media player for Windows.

Building Methods

If you want to build VLC from source, you have several choices:

Method	Documentation	Notes
MinGW on Linux	Obtaining the toolchain	Preferred method (uses cross compilation). On Windows, you should do it in a virtual machine.
MSYS+MinGW on Windows	Compile with MSys	Native compilation method. MSYS is a minimal build environment to compile Unixish projects under Microsoft Windows.
Cygwin on Windows	Compile with Cygwin	Build using cygwin as your compile environment. Error prone, and slow.

Obtaining the cross-compilation toolchain

Compiler and binary toolchain

1.推荐Mingw-w64

To compile VLC for Windows (32-bits or 64-bits), the Mingw-w64 toolchain is required:

• Debian/Ubuntu: run apt-get install gcc-mingw-w64-i686 g++-mingw-w64-i686 mingw-w64-tools


(on Debian you must be on wheezy or above to find this package)

Mingw32（不推荐，除非使用Mingw-w64出问题了）

Up to versions 2.0.x, VLC was compiled with the older mingw32 toolchain, which only supports 32-bits Windows. If you have problems with mingw-w64, you can try mingw32 instead:

• Debian/Ubuntu: run apt-get install gcc-mingw32 mingw32-binutils. Note that at least version 3.17 of Mingw32 is required, which Debian does not provide. You may obtain mingw32-runtime-3.17 here.
• Gentoo users can emerge crossdev && crossdev mingw32
• ArchLinux users can pacman -S mingw32-gcc
• Fedora users should read Win32Compile Under Fedora
• Other Linux systems may attempt http://www.mingw.org/wiki/LinuxCrossMinGW

Development tools

2.You will also need: 执行 apt-get install 安装下面工具

• lua (5.1 or 5.2)
• all autotools: libtool, automake, autoconf, autopoint, make, gettext
• pkg-config
• qt4-dev-tools
• git
• subversion
• cmake, cvs if you want to rebuild contribs
• wine-dev for creating Win32 packages
• zip [for creating .zip package], p7zip [for .7z package], nsis [for .exe auto-installer], bzip2 [for 'make prebuild]

Host triplet

A number of example commands below include the identifier of the toolchain. This value is essential: it instructs the build system to use the correct toolchain and compile the program for Windows. Without the value, the build system will perform a native compilation for Linux (or whatever your computer runs). With an incorrect value, the build will fail.

This is known as the host triplet, although it's more of a pair than a triplet in the case of Mingw. The exact value depends on your installation of the toolchain. Notably on Debian/Ubuntu, these values must be used:

• i686-w64-mingw32 for Windows 32-bits, using the Mingw-w64 toolchain
• x86_64-w64-mingw32 for Windows 64-bits, using the Mingw-w64 toolchain
• i586-mingw32msvc for Windows 32-bits, using the Mingw32 toolchain

Again, you MUST substitute the value in the following command snippets.

3.Get the source code

vlc2.1.0版本代码下载  http://download.videolan.org/pub/videolan/vlc/2.1.0/vlc-2.1.0.tar.xz

如果编译最新版本，则从git获

$ git clone git://git.videolan.org/vlc.git vlc

See Git for more information.

4.Go into the VLC directory

$ cd vlc

5.Prepare 3rd party libraries

Before compiling VLC, you need lots of other libraries. Here is how to get them:

 $ mkdir -p contrib/win32
 $ cd contrib/win32
 $ ../bootstrap --host=i686-w64-mingw32
 $ make prebuilt

or, if you want to compile the contribs yourself and are feeling adventurous and have lots of time to burn,

如果执行上面的命令了，下面就不用执行了

 # apt-get install subversion yasm cvs cmake

 $ mkdir -p contrib/win32
 $ cd contrib/win32
 $ ../bootstrap --host=i686-w64-mingw32
 $ make fetch
 $ make

6.Linux 64-bit

补充：查看linux是32位还是64位的方法： 执行 uname -m  如果是i386到i686，那就是32位系统；如果是x86_64 ，那就是64系统。我的是32位，这步就不需要了。

If you are on Linux 64-bit, you SHOULD remove some files, or install the lib32 packages (ia32-libs, multilibs, etc...)

 $ rm -f ../i686-w64-mingw32/bin/moc ../i686-w64-mingw32/bin/uic ../i686-w64-mingw32/bin/rcc

In addition, install the qt4-tools package.

Fix your contrib path

If your Mingw prefix is not i686-w64-mingw32 (you are NOT on Debian or Ubuntu), create a symlink to contribs:

 $ ln -sf ../i686-w64-mingw32 ../i486-mingw32

7.Go Back

Go back to the VLC source directory:

 $ cd -

8.Configuring the build

Bootstrap

First, prepare the tree:

 $ ./bootstrap

9.Configure

Then you can to configure the build with the ./configure script.

Create a subfolder，Use the standard configuration:

 $ mkdir win32 && cd win32

$ ../extras/package/win32/configure.sh --host=i686-w64-mingw32

如果这步出现问题，参见最后的解决方法
执行上面命令后就不用执行下面了，到第10步。

NB: use YOUR Xcompiling prefix here, like i486-mingw32

Alternatively, you can run configure manually:

$ ../configure --host=i686-w64-mingw32

See '../configure --help' for more information.

10.Building VLC

Once configured, to build VLC, just run:

 $ make

11.Packaging VLC

Once the compilation is done, you can build self-contained VLC packages with the following make rules:

Command	Description
make package-win-common	Creates a subdirectory named vlc-x.x.x with all the binaries. You can run VLC directly from this directory.
make package-win-strip	Same as above but will create 'stripped' binaries (that is, smallest size, unusable with a debugger).
make package-win32-7zip	Same as above but will package the directory in a 7z file.
make package-win32-zip	Same as above but will package the directory in a zip file.
make package-win32	Same as above but will also create an auto-installer package. You must have NSIS installed in its default location for this to work.

Well done—you're ready to use VLC!

执行第9步出现的问题：

1.出现error: LibVLC requires mingw-runtime version 3.15 or higher, or mingw-w64 version 3.0 or higher!

是因为mingw-64版本问题，版本必须为最新版本，更新方法是去 http://ftp.us.debian.org/debian/pool/main/m/mingw-w64/查看包，在ubuntu下可以使用一下命令安装：

wget http://ftp.us.debian.org/debian/pool/main/m/mingw-w64/mingw-w64-common_3.1.0-1_all.deb

wget http://ftp.us.debian.org/debian/pool/main/m/mingw-w64/mingw-w64-i686-dev_3.1.0-1_all.deb

wget http://ftp.us.debian.org/debian/pool/main/m/mingw-w64/mingw-w64_3.1.0-1_all.deb

sudo dpkg -i mingw-w64-common_3.1.0-1_all.deb

sudo dpkg -i mingw-w64_3.1.0-1_all.deb

sudo dpkg -i mingw-w64-i686-dev_3.1.0-1_all.deb

2.出现错误：vlc-2.1.0/contrib/i686-w64-mingw32/bin/luac: cannot execute binary file
configure: error: You need 32-bits luac when using using lua from contrib.

执行 file vlc-2.1.0/contrib/i686-w64-mingw32/bin/luac, 发现luac是64位的，这里需要一个32位的，需要执行

mv ~/tools/vlc-2.1.0/contrib/i686-w64-mingw32/bin/luac ~/tools/vlc-2.1.0/contrib/i686-w64-mingw32/bin/luac.bak

cp /usr/bin/luac5.2 ~/tools/vlc-2.1.0/contrib/i686-w64-mingw32/bin/luac