Install Xcode
Get Xcode from https://developer.apple.com/downloads. Xcode 3.1.4 or later is required to build.
Install the Xcode Command Line Tools (located under Xcode Preferences > Downloads)
Note: Before you can use the Xcode 4.3.2 tools, you must either run sudo xcode-select -switch /Applications/Xcode.app
or
set the environment variable DEVELOPER_DIR to /Applications/Xcode.app/Contents/Developer
. See the xcode-select
man page for more details.
Note: This step is not required for versions of Xcode earlier than 4.3.
Install Java for Mac OS X Developer Package
Download and install the latest OS-appropriate “Java for Mac OS X Developer Package” from https://developer.apple.com/downloads.
You can build with either Visual Studio 2010 or Visual Studio 2010 express. (Newer versions currently unsupported)
Install Microsoft Visual Studio 2010 Service Pack 1.
If you are building from Vista, install Service Pack 1 Update for Windows Vista.
Use the default options for these installations.
Install Cygwin
Cygwin is a collection of utilities for Windows that includes not only a Subversion client, but also additional tools that are required to build the WebKit source. We have made a downloader available that automatically collects all of the required packages.
Download cygwin-downloader.zip.
Extract the content of the archive to some folder and start cygwin-downloader.exe
from that folder.
This will download all the Cygwin packages you need.
When all the packages have finished downloading, the Cygwin installer will launch. Choose Install from Local Directory, then click Next until the install is complete. If you are running Vista, the installer won't be able to launch automatically, so you will have to manually launch Cygwin's Setup.exe.
Note: If you are behind a proxy you need to set the http_proxy
environment variable to the URL of the proxy. This would
likely match this pattern: http[s]://[username[:password]@]somehost.com[:port]
. Where the square brackets ([]) are not part of the url but enclose url elements that are optional indicating that those elements might be missing in your case together with their enclosed delimiter such as @ and :.
Note: Vista may warn you that Cygwin did not install correctly. Ignore this warning and tell Vista that the install was successful.
Warning: If you are running Vista or Windows 7, Cygwin may have trouble with implementing fork
(the POSIX function frequently used to start child processes, needed by many of the WebKit build tools).
In order to enable cygwin1.dll
to implement fork successfully it is better if no DLL loaded in the parent process is relocated at runtime.
One way to achive this is to rebase all cygwin dlls except cyglsa64.dll
and cygwin1.dll
to base addresses that cause them to not overlap in memory.
In order to rebase all cygwin dlls a rebaseall
script is provided in the cygwin installation's bin
directory
(usually C:\cygwin\bin
).
This script must be run from ash.exe
(found in the same directory) while no other cygwin application is running.
ash.exe
has very limited command line editing features so cutting and pasting to the commandline is recommended.
The PATH
environment variable may not contain the /bin
directory by default
thus the script should be launched as /bin/rebaseall
.
If rebaseall
is complaining about failure to write to a Windows Temp directory (i.e. /cygdrive/c/Users/you/AppData/Local/Temp
),
fix the permissions on that folder (i.e. /bin/chown you /cygdrive/c/Users/you/AppData/Local/Temp
) or
change the TMP environment variable to point to a directory with the appropriate permission flags (i.e.: export TMP=/tmp
).
Note: The rebase process may need to be repeated to include any new libraries added later to cygwin by listing these libraries by full cygwin path in a file
and passing the file to rebaseall
via the -T fileName
commandline argument.
The dlls under LayoutTests/http/conf
are a relevant use case.
Remove the following lines from /home/[username]/.bashrc
(if present):
If you are behind a proxy you need to do the following to allow cygwin svn to get through the proxy (similar steps are available for your Windows svn):
svn help
. This will create in your cygwin home directory the file .subversion/servers.Install QuickTime SDK
Download QuickTime SDK for Windows from http://developer.apple.com/quicktime/download/ and install it to the default location (\Program Files\QuickTime SDK). This is needed for media support.
Install DirectX SDK
Download the June 2010 DirectX SDK This is needed for accelerated compositing.
Optional: Install the 32-bit version of Debugging Tools for Windows
Debugging Tools for Windows includes many useful debugging tools such as WinDbg and NTSD. Some of WebKit’s tests and scripts use these tools. Follow the instructions for installing the 32-bit version of Debugging Tools for Windows.
Optional: Hotfix for 64-bit Windows to disable the user-mode callback filter for exceptions
Without the 976038 hotfix, exceptions may be thrown in callback routines that do not cause a crash but leave the application in an inconsistent state that might cause a crash later. You will need to click on "View and request hotfix downloads" and fill out the form. A link to download the hotfix and a password will be emailed to you.
Once you have installed your developer tools, the next step is getting the code.