HACKING
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上传日期:2009-03-27
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- $Id: HACKING 8782 2004-09-23 20:56:46Z hartman $
- Hacking vlc
- ===========
- First
- -----
- - Read this file
- - Read the information present on http://developers.videolan.org/vlc/
- Requirements
- ____________
- You will need the following tools if you plan to use the SVN version of vlc:
- - autoconf version 2.50 or later
- - automake version 1.5 (but 1.6 or later is recommended)
- - gettext version 0.10.40 (but 0.11.3 or later is recommended)
- After retrieving the SVN tree, you need to run the bootstrap script to
- generate all the files needed to build vlc. You can then run configure.
- Run ./configure --help for a description of the available options.
- If you do not have the correct version of these tools, or if they are
- simply not available for the operating system you plan to develop on,
- you can check out a SVN tree on an OS that provides these tools (such
- as a recent Linux distribution), run bootstrap, and then copy the whole
- tree to your retarded OS.
- There is a possibility that, at some point, automake might segfault. The
- reason is unsufficient stack size, and can be easily fixed with the
- `ulimit` command (or an equivalent) available in most shells. For instance
- on bash 2.0, the following command solves the automake crash on Mac OS X :
- ulimit -s 20000
- The bootstrap sequence
- ----------------------
- The bootstrap script does the following actions:
- - parse configure.ac for all Makefiles in the modules/ directory that need
- to be generated, and look for available modules in the corresponding
- Modules.am file. A module "foo" exists if there is a Modules.am file in
- the modules/ directory which defines SOURCES_foo.
- - create a top-level Modules.am file (which will be included by Makefile.am)
- which contains additional build rules for modules, and includes all the
- Modules.am files that were found in modules/
- - create an m4/private.m4 from configure.ac, generating m4 macros that will
- be needed by configure.ac.
- - create a Makefile.am file for each Modules.am file found in modules/ .
- - run autopoint (previously gettextize) to create an intl/ directory,
- needed when libgettext is not available.
- - run the usual aclocal, autoheader, automake and autoconf, which create
- the various Makefile.in files from the corresponding Makefile.am and the
- configure script from configure.ac.
- - fix a few files in the vlc repository that may have been altered.
- How to add a module
- -------------------
- To add a module to the repository, just add its sources to a Modules.am
- file. If you add a new directory you will need to create a new Modules.am,
- inside that directory. Do not forget to add a corresponding
- Makefile line at the end of configure.ac for this new Modules.am file.
- To have the module built, you need to add a call to VLC_ADD_PLUGINS or
- VLC_ADD_BUILTINS to configure.ac with your new module name as argument.
- Look at other modules for guidelines on how to add build and linkage options.
- After changing configure.ac you will always need to rerun bootstrap and
- configure.