How to build WebKit on Windows.

1. Install VS2005
2. Install Cygwin from here:
   • http://www.cygwin.com/
   • Install Cygwin options
     • devl->make
     • devl->g++
     • devl->bison
     • devl->gperf
     • devl->flex
     • devl->subversion
     • net->curl
     • interpreters->perl
     • archive->unzip
3. Update Perl:
   • In cygwin run:
     • perl -MCPAN -e shell
       • yes to autoconfigure
     • install Win32API::Registry
4. Set the following environment variables:
   • WEBKITOUTPUTDIR – An absolute Windows-style path pointing to the directory where you want the build products to go.
   • WEBKITLIBRARIESDIR – An absolute Windows-style path pointing to the WebKitLibraries/win folder in your WebKit checkout.
5. Install QucktimeSDK from here:
   • http://developer.apple.com/quicktime/download/
6. Extract the latest WebKit build into the cygwin’s ~ or user dir:
   • http://nightly.webkit.org/
   • That is, extract the package to your user dir and rename WebKit-XXXXX to simply WebKit
7. Drop the WebKit Support Library into the WebKit folder:
   • http://developer.apple.com/opensource/internet/webkit_sptlib_agree.html
8. Run this command:
   • WebKit/WebKitTools/Scripts/build-webkit

Official Instructions can be found here:

http://nightly.webkit.org/

Some tips can be found here:

http://trac.webkit.org/wiki/BuildingOnWindows