WebKitTools/Scripts/build-webkit - platform/external/webkit - Git at Google

 #!/usr/bin/perl -w

 # Copyright (C) 2005, 2006 Apple Inc. All rights reserved.
 # Copyright (C) 2009 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 #
 # 1.  Redistributions of source code must retain the above copyright
 #     notice, this list of conditions and the following disclaimer.
 # 2.  Redistributions in binary form must reproduce the above copyright
 #     notice, this list of conditions and the following disclaimer in the
 #     documentation and/or other materials provided with the distribution.
 # 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
 #     its contributors may be used to endorse or promote products derived
 #     from this software without specific prior written permission.
 #
 # THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 # DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 # Build script wrapper for the WebKit Open Source Project.

 use strict;
 use File::Basename;
 use File::Spec;
 use FindBin;
 use Getopt::Long qw(:config pass_through);
 use lib $FindBin::Bin;
 use webkitdirs;
 use POSIX;

 sub formatBuildTime($);
 sub writeCongrats();

 my $originalWorkingDirectory = getcwd();
 chdirWebKit();

 my $showHelp = 0;
 my $clean = 0;
 my $minimal = 0;
 my $makeArgs;
 my $startTime = time();

 my ($threeDCanvasSupport, $threeDRenderingSupport, $channelMessagingSupport, $databaseSupport, $datagridSupport, $domStorageSupport,
     $eventsourceSupport, $filtersSupport, $geolocationSupport, $iconDatabaseSupport,
     $javaScriptDebuggerSupport, $mathmlSupport, $offlineWebApplicationSupport, $rubySupport, $sharedWorkersSupport,
     $svgSupport, $svgAnimationSupport, $svgAsImageSupport, $svgDOMObjCBindingsSupport, $svgFontsSupport,
     $svgForeignObjectSupport, $svgUseSupport, $videoSupport, $webSocketsSupport, $wmlSupport, $wcssSupport, $xhtmlmpSupport, $workersSupport,
     $xpathSupport, $xsltSupport, $coverageSupport, $notificationsSupport);

 my @features = (
     { option => "3d-canvas", desc => "Toggle 3D canvas support",
       define => "ENABLE_3D_CANVAS", default => (isAppleMacWebKit() && !isTiger()), value => \$threeDCanvasSupport },

     { option => "3d-rendering", desc => "Toggle 3D rendering support",
       define => "ENABLE_3D_RENDERING", default => (isAppleMacWebKit() && !isTiger()), value => \$threeDRenderingSupport },

     { option => "channel-messaging", desc => "Toggle MessageChannel and MessagePort support",
       define => "ENABLE_CHANNEL_MESSAGING", default => 1, value => \$channelMessagingSupport },

     { option => "coverage", desc => "Toggle code coverage support",
       define => "", default => 0, value => \$coverageSupport },

     { option => "database", desc => "Toggle Database Support",
       define => "ENABLE_DATABASE", default => 1, value => \$databaseSupport },

     { option => "datagrid", desc => "Toggle Datagrid Support",
       define => "ENABLE_DATAGRID", default => 1, value => \$datagridSupport },

     { option => "dom-storage", desc => "Toggle DOM Storage Support",
       define => "ENABLE_DOM_STORAGE", default => 1, value => \$domStorageSupport },

     { option => "eventsource", desc => "Toggle server-sent events support",
       define => "ENABLE_EVENTSOURCE", default => 1, value => \$eventsourceSupport },

     { option => "filters", desc => "Toggle Filters support",
       define => "ENABLE_FILTERS", default => 0, value => \$filtersSupport },

     { option => "geolocation", desc => "Toggle Geolocation support",
       define => "ENABLE_GEOLOCATION", default => isGtk(), value => \$geolocationSupport },

     { option => "icon-database", desc => "Toggle Icon database support",
       define => "ENABLE_ICONDATABASE", default => 1, value => \$iconDatabaseSupport },

     { option => "javascript-debugger", desc => "Toggle JavaScript Debugger/Profiler support",
       define => "ENABLE_JAVASCRIPT_DEBUGGER", default => 1, value => \$javaScriptDebuggerSupport },

     { option => "mathml", desc => "Toggle MathML support",
       define => "ENABLE_MATHML", default => 0, value => \$mathmlSupport },

     { option => "notifications", desc => "Toggle Desktop Notifications Support",
       define => "ENABLE_NOTIFICATIONS", default => 0, value => \$notificationsSupport },

     { option => "offline-web-applications", desc => "Toggle Offline Web Application Support",
       define => "ENABLE_OFFLINE_WEB_APPLICATIONS", default => 1, value => \$offlineWebApplicationSupport },

     { option => "ruby", desc => "Toggle HTML5 Ruby support",
       define => "ENABLE_RUBY", default => 1, value => \$rubySupport },

     { option => "shared-workers", desc => "Toggle SharedWorkers support",
       define => "ENABLE_SHARED_WORKERS", default => (isAppleWebKit() || isGtk()), value => \$sharedWorkersSupport },

     { option => "svg", desc => "Toggle SVG support",
       define => "ENABLE_SVG", default => 1, value => \$svgSupport },

     { option => "svg-animation", desc => "Toggle SVG animation support (implies SVG support)",
       define => "ENABLE_SVG_ANIMATION", default => 1, value => \$svgAnimationSupport },

     { option => "svg-as-image", desc => "Toggle SVG as Image support (implies SVG support)",
       define => "ENABLE_SVG_AS_IMAGE", default => 1, value => \$svgAsImageSupport },

     { option => "svg-dom-objc-bindings", desc => "Toggle SVG DOM Objective-C bindings support (implies SVG support)",
       define => "ENABLE_SVG_DOM_OBJC_BINDINGS", default => isAppleMacWebKit(), value => \$svgDOMObjCBindingsSupport },

     { option => "svg-fonts", desc => "Toggle SVG fonts support (imples SVG support)",
       define => "ENABLE_SVG_FONTS", default => 1, value => \$svgFontsSupport },

     { option => "svg-foreign-object", desc => "Toggle SVG foreign object support (implies SVG support)",
       define => "ENABLE_SVG_FOREIGN_OBJECT", default => 1, value => \$svgForeignObjectSupport },

     { option => "svg-use", desc => "Toggle SVG use element support (implies SVG support)",
       define => "ENABLE_SVG_USE", default => 1, value => \$svgUseSupport },

     { option => "video", desc => "Toggle Video support",
       define => "ENABLE_VIDEO", default => (isAppleWebKit() || isGtk()), value => \$videoSupport },

     { option => "web-sockets", desc => "Toggle Web Sockets support",
       define => "ENABLE_WEB_SOCKETS", default => 1, value=> \$webSocketsSupport },

     { option => "wml", desc => "Toggle WML support",
       define => "ENABLE_WML", default => 0, value => \$wmlSupport },

     { option => "xhtmlmp", desc => "Toggle XHTML-MP support",
       define => "ENABLE_XHTMLMP", default => 0, value => \$xhtmlmpSupport },

     { option => "wcss", desc => "Toggle WCSS support",
       define => "ENABLE_WCSS", default => 0, value => \$wcssSupport },

     { option => "workers", desc => "Toggle Web Workers support",
       define => "ENABLE_WORKERS", default => (isAppleWebKit() || isGtk()), value => \$workersSupport },

     { option => "xpath", desc => "Toggle XPath support",
       define => "ENABLE_XPATH", default => 1, value => \$xpathSupport },

     { option => "xslt", desc => "Toggle XSLT support",
       define => "ENABLE_XSLT", default => 1, value => \$xsltSupport },
 );

 # Update defaults from Qt's project file
 if (isQt()) {
     my %qtDefaults = qtFeatureDefaults();
     foreach (@features) {
         $_->{default} = $qtDefaults{$_->{define}} || 0;
     }
 }

 # Initialize values from defaults
 foreach (@ARGV) {
     if ($_ eq '--minimal') {
         $minimal = 1;
         last;
     }
 }

 # Initialize values from defaults
 foreach (@features) {
     ${$_->{value}} = ($_->{default} && !$minimal) || 0;
 }

 $svgSupport = $svgSupport || $svgAnimationSupport || $svgAsImageSupport
     || $svgDOMObjCBindingsSupport || $svgFontsSupport
     || $svgForeignObjectSupport || $svgUseSupport;


 my $programName = basename($0);
 my $usage = <<EOF;
 Usage: $programName [options] [options to pass to build system]
   --help                            Show this help message
   --clean                           Cleanup the build directory
   --debug                           Compile in debug mode
   --cairo-win32                     Build using Cairo (rather than CoreGraphics) on Windows
   --chromium                        Build the Chromium port on Mac/Win/Linux
   --gtk                             Build the GTK+ port
   --qt                              Build the Qt port

   --makeargs=<arguments>            Optional Makefile flags

   --minimal                         No optional features, unless explicitly enabled.

 EOF

 my %options = (
     'help' => \$showHelp,
     'clean' => \$clean,
     'makeargs=s' => \$makeArgs,
     'minimal' => \$minimal,
 );

 # Build usage text and options list from features
 foreach (@features) {
     my $opt = sprintf("%-35s", "  --[no-]$_->{option}");
     $usage .= "$opt $_->{desc} (default: $_->{default})\n";
     $options{"$_->{option}!"} = $_->{value};
 }

 GetOptions(%options);

 if ($showHelp) {
    print STDERR $usage;
    exit 1;
 }

 checkRequiredSystemConfig();
 setConfiguration();

 my $productDir = productDir();

 # Check that all the project directories are there.
 my @projects = ("JavaScriptCore", "WebCore", "WebKit");
 # Only Apple builds JavaScriptGlue, and only on the Mac
 splice @projects, 1, 0, "JavaScriptGlue" if isAppleMacWebKit();

 my @otherDirs = ("WebKitLibraries");
 for my $dir (@projects, @otherDirs) {
     if (! -d $dir) {
         die "Error: No $dir directory found. Please do a fresh checkout.\n";
     }
 }

 my @options = ();

 # enable autotool options accordingly
 if (isGtk()) {
     foreach (@features) {
         push @options, autotoolsFlag(${$_->{value}}, $_->{option});
     }

     push @options, "--makeargs=" . $makeArgs if defined($makeArgs);
 } elsif (isAppleMacWebKit()) {
     push @options, XcodeOptions();

     sub option($$)
     {
         my ($feature, $isEnabled) = @_;
         return $feature . "=" . ($isEnabled ? $feature : " ");
     }

     foreach (@features) {
         if ($_->{option} eq "coverage") {
             push @options, XcodeCoverageSupportOptions() if $coverageSupport;
         } else {
             push @options, option($_->{define}, ${$_->{value}});
         }
     }

     # Copy library and header from WebKitLibraries to a findable place in the product directory.

     my @librariesToCopy = (
         "libWebKitSystemInterfaceTiger.a",
         "libWebKitSystemInterfaceLeopard.a",
         "libWebKitSystemInterfaceSnowLeopard.a",
         "libWebCoreSQLite3.a",
     );
     foreach my $libName (@librariesToCopy) {
         my $srcLib = "WebKitLibraries/" . $libName;
         my $lib = "$productDir/" . $libName;
         if (!-e $lib || -M $lib > -M $srcLib) {
             print "Updating $lib\n";
             system "ditto", $srcLib, $lib;
             system "ranlib", $lib;
         }
     }

     # FIXME: This code should be abstracted to not be copy/paste.
     my $srcHeader = "WebKitLibraries/WebKitSystemInterface.h";
     my $header = "$productDir/usr/local/include/WebKitSystemInterface.h";
     if (!-e $header || -M $header > -M $srcHeader) {
         print "Updating $header\n";
         system "mkdir", "-p", "$productDir/usr/local/include";
         system "ditto", $srcHeader, $header;
     }

     my $srcHeaderDir = "WebKitLibraries/WebCoreSQLite3";
     my $headerDir = "$productDir/WebCoreSQLite3";
     if (!-e $headerDir || -M $headerDir > -M $srcHeaderDir) {
         print "Updating $headerDir\n";
         system "ditto", $srcHeaderDir, $headerDir;
     }
 } elsif (isAppleWinWebKit()) {
     # Copy WebKitSupportLibrary to the correct location in WebKitLibraries so it can be found.
     # Will fail if WebKitSupportLibrary.zip is not in source root.
     (system("perl WebKitTools/Scripts/update-webkit-support-libs") == 0) or die;
 } elsif (isQt()) {
     @options = @ARGV;
     push @options, "--makeargs=" . $makeArgs if defined($makeArgs);

     foreach (@features) {
         push @options, "DEFINES+=$_->{define}=${$_->{value}}" if ${$_->{value}} != $_->{default};
     }
 }

 # Force re-link of existing libraries if different than expected
 removeLibraryDependingOnSVG("WebCore", $svgSupport);

 if (isWx()) {
     downloadWafIfNeeded();
     push @projects, 'WebKitTools/wx/browser';
     push @projects, 'WebKit/wx/bindings/python';
 }

 if (isChromium()) {
     # Chromium doesn't build by project directories.
     @projects = ();
     my $result = buildChromium($clean, @options);
     exit $result if $result;
 }

 # Build, and abort if the build fails.
 for my $dir (@projects) {
     chdir $dir or die;
     my $result = 0;

     # For Gtk and Qt the WebKit project builds all others
     if ((isGtk() || isQt()) && $dir ne "WebKit") {
         chdir ".." or die;
         next;
     }

     if (isGtk()) {
         $result = buildGtkProject($dir, $clean,  @options);
     } elsif (isQt()) {
         $result = buildQMakeQtProject($dir, $clean, @options);
     } elsif (isAppleMacWebKit()) {
         $result = buildXCodeProject($dir, $clean, @options, @ARGV);
     } elsif (isAppleWinWebKit()) {
         if ($dir eq "WebKit") {
             $result = buildVisualStudioProject("win/WebKit.vcproj/WebKit.sln", $clean);
         }
     } elsif (isWx()) {
         @options = ();
         if (defined($makeArgs)) {
             @options = split(/ /, $makeArgs);
         }
         if ($dir eq "WebKit" && isWx()) {
             chdir 'wx' or die;
         }

         $result = buildWafProject($dir, $clean, @options);
     }

     if (exitStatus($result)) {
         if (isAppleWinWebKit()) {
             print "\n\n===== BUILD FAILED ======\n\n";
             my $scriptDir = relativeScriptsDir();
             print "Please ensure you have run $scriptDir/update-webkit to install depenedencies.\n\n";
             my $baseProductDir = baseProductDir();
             print "You can view build errors by checking the BuildLog.htm files located at:\n$baseProductDir/obj/<project>/<config>.\n";
         }
         exit exitStatus($result);
     }
     chdirWebKit();
 }

 # Don't report the "WebKit is now built" message after a clean operation.
 exit if $clean;

 # Write out congratulations message.
 writeCongrats();

 exit 0;

 sub formatBuildTime($)
 {
     my ($buildTime) = @_;

     my $buildHours = int($buildTime / 3600);
     my $buildMins = int(($buildTime - $buildHours * 3600) / 60);
     my $buildSecs = $buildTime - $buildHours * 3600 - $buildMins * 60;

     if ($buildHours) {
         return sprintf("%dh:%02dm:%02ds", $buildHours, $buildMins, $buildSecs);
     }
     return sprintf("%02dm:%02ds", $buildMins, $buildSecs);
 }

 sub writeCongrats()
 {
     my $launcherPath = launcherPath();
     my $launcherName = launcherName();
     my $endTime = time();
     my $buildTime = formatBuildTime($endTime - $startTime);

     print "\n";
     print "===========================================================\n";
     print " WebKit is now built ($buildTime). \n";
     if (!isChromium()) {
         print " To run $launcherName with this newly-built code, use the\n";
         print " \"$launcherPath\" script.\n";
     }
     print "===========================================================\n";
 }
	#!/usr/bin/perl -w

	# Copyright (C) 2005, 2006 Apple Inc. All rights reserved.
	# Copyright (C) 2009 Google Inc. All rights reserved.
	#
	# Redistribution and use in source and binary forms, with or without
	# modification, are permitted provided that the following conditions
	# are met:
	#
	# 1. Redistributions of source code must retain the above copyright
	# notice, this list of conditions and the following disclaimer.
	# 2. Redistributions in binary form must reproduce the above copyright
	# notice, this list of conditions and the following disclaimer in the
	# documentation and/or other materials provided with the distribution.
	# 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
	# its contributors may be used to endorse or promote products derived
	# from this software without specific prior written permission.
	#
	# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
	# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	# DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
	# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

	# Build script wrapper for the WebKit Open Source Project.

	use strict;
	use File::Basename;
	use File::Spec;
	use FindBin;
	use Getopt::Long qw(:config pass_through);
	use lib $FindBin::Bin;
	use webkitdirs;
	use POSIX;

	sub formatBuildTime($);
	sub writeCongrats();

	my $originalWorkingDirectory = getcwd();
	chdirWebKit();

	my $showHelp = 0;
	my $clean = 0;
	my $minimal = 0;
	my $makeArgs;
	my $startTime = time();

	my ($threeDCanvasSupport, $threeDRenderingSupport, $channelMessagingSupport, $databaseSupport, $datagridSupport, $domStorageSupport,
	$eventsourceSupport, $filtersSupport, $geolocationSupport, $iconDatabaseSupport,
	$javaScriptDebuggerSupport, $mathmlSupport, $offlineWebApplicationSupport, $rubySupport, $sharedWorkersSupport,
	$svgSupport, $svgAnimationSupport, $svgAsImageSupport, $svgDOMObjCBindingsSupport, $svgFontsSupport,
	$svgForeignObjectSupport, $svgUseSupport, $videoSupport, $webSocketsSupport, $wmlSupport, $wcssSupport, $xhtmlmpSupport, $workersSupport,
	$xpathSupport, $xsltSupport, $coverageSupport, $notificationsSupport);

	my @features = (
	{ option => "3d-canvas", desc => "Toggle 3D canvas support",
	define => "ENABLE_3D_CANVAS", default => (isAppleMacWebKit() && !isTiger()), value => \$threeDCanvasSupport },

	{ option => "3d-rendering", desc => "Toggle 3D rendering support",
	define => "ENABLE_3D_RENDERING", default => (isAppleMacWebKit() && !isTiger()), value => \$threeDRenderingSupport },

	{ option => "channel-messaging", desc => "Toggle MessageChannel and MessagePort support",
	define => "ENABLE_CHANNEL_MESSAGING", default => 1, value => \$channelMessagingSupport },

	{ option => "coverage", desc => "Toggle code coverage support",
	define => "", default => 0, value => \$coverageSupport },

	{ option => "database", desc => "Toggle Database Support",
	define => "ENABLE_DATABASE", default => 1, value => \$databaseSupport },

	{ option => "datagrid", desc => "Toggle Datagrid Support",
	define => "ENABLE_DATAGRID", default => 1, value => \$datagridSupport },

	{ option => "dom-storage", desc => "Toggle DOM Storage Support",
	define => "ENABLE_DOM_STORAGE", default => 1, value => \$domStorageSupport },

	{ option => "eventsource", desc => "Toggle server-sent events support",
	define => "ENABLE_EVENTSOURCE", default => 1, value => \$eventsourceSupport },

	{ option => "filters", desc => "Toggle Filters support",
	define => "ENABLE_FILTERS", default => 0, value => \$filtersSupport },

	{ option => "geolocation", desc => "Toggle Geolocation support",
	define => "ENABLE_GEOLOCATION", default => isGtk(), value => \$geolocationSupport },

	{ option => "icon-database", desc => "Toggle Icon database support",
	define => "ENABLE_ICONDATABASE", default => 1, value => \$iconDatabaseSupport },

	{ option => "javascript-debugger", desc => "Toggle JavaScript Debugger/Profiler support",
	define => "ENABLE_JAVASCRIPT_DEBUGGER", default => 1, value => \$javaScriptDebuggerSupport },

	{ option => "mathml", desc => "Toggle MathML support",
	define => "ENABLE_MATHML", default => 0, value => \$mathmlSupport },

	{ option => "notifications", desc => "Toggle Desktop Notifications Support",
	define => "ENABLE_NOTIFICATIONS", default => 0, value => \$notificationsSupport },

	{ option => "offline-web-applications", desc => "Toggle Offline Web Application Support",
	define => "ENABLE_OFFLINE_WEB_APPLICATIONS", default => 1, value => \$offlineWebApplicationSupport },

	{ option => "ruby", desc => "Toggle HTML5 Ruby support",
	define => "ENABLE_RUBY", default => 1, value => \$rubySupport },

	{ option => "shared-workers", desc => "Toggle SharedWorkers support",
	define => "ENABLE_SHARED_WORKERS", default => (isAppleWebKit() \|\| isGtk()), value => \$sharedWorkersSupport },

	{ option => "svg", desc => "Toggle SVG support",
	define => "ENABLE_SVG", default => 1, value => \$svgSupport },

	{ option => "svg-animation", desc => "Toggle SVG animation support (implies SVG support)",
	define => "ENABLE_SVG_ANIMATION", default => 1, value => \$svgAnimationSupport },

	{ option => "svg-as-image", desc => "Toggle SVG as Image support (implies SVG support)",
	define => "ENABLE_SVG_AS_IMAGE", default => 1, value => \$svgAsImageSupport },

	{ option => "svg-dom-objc-bindings", desc => "Toggle SVG DOM Objective-C bindings support (implies SVG support)",
	define => "ENABLE_SVG_DOM_OBJC_BINDINGS", default => isAppleMacWebKit(), value => \$svgDOMObjCBindingsSupport },

	{ option => "svg-fonts", desc => "Toggle SVG fonts support (imples SVG support)",
	define => "ENABLE_SVG_FONTS", default => 1, value => \$svgFontsSupport },

	{ option => "svg-foreign-object", desc => "Toggle SVG foreign object support (implies SVG support)",
	define => "ENABLE_SVG_FOREIGN_OBJECT", default => 1, value => \$svgForeignObjectSupport },

	{ option => "svg-use", desc => "Toggle SVG use element support (implies SVG support)",
	define => "ENABLE_SVG_USE", default => 1, value => \$svgUseSupport },

	{ option => "video", desc => "Toggle Video support",
	define => "ENABLE_VIDEO", default => (isAppleWebKit() \|\| isGtk()), value => \$videoSupport },

	{ option => "web-sockets", desc => "Toggle Web Sockets support",
	define => "ENABLE_WEB_SOCKETS", default => 1, value=> \$webSocketsSupport },

	{ option => "wml", desc => "Toggle WML support",
	define => "ENABLE_WML", default => 0, value => \$wmlSupport },

	{ option => "xhtmlmp", desc => "Toggle XHTML-MP support",
	define => "ENABLE_XHTMLMP", default => 0, value => \$xhtmlmpSupport },

	{ option => "wcss", desc => "Toggle WCSS support",
	define => "ENABLE_WCSS", default => 0, value => \$wcssSupport },

	{ option => "workers", desc => "Toggle Web Workers support",
	define => "ENABLE_WORKERS", default => (isAppleWebKit() \|\| isGtk()), value => \$workersSupport },

	{ option => "xpath", desc => "Toggle XPath support",
	define => "ENABLE_XPATH", default => 1, value => \$xpathSupport },

	{ option => "xslt", desc => "Toggle XSLT support",
	define => "ENABLE_XSLT", default => 1, value => \$xsltSupport },
	);

	# Update defaults from Qt's project file
	if (isQt()) {
	my %qtDefaults = qtFeatureDefaults();
	foreach (@features) {
	$_->{default} = $qtDefaults{$_->{define}} \|\| 0;
	}
	}

	# Initialize values from defaults
	foreach (@ARGV) {
	if ($_ eq '--minimal') {
	$minimal = 1;
	last;
	}
	}

	# Initialize values from defaults
	foreach (@features) {
	${$_->{value}} = ($_->{default} && !$minimal) \|\| 0;
	}

	$svgSupport = $svgSupport \|\| $svgAnimationSupport \|\| $svgAsImageSupport
	\|\| $svgDOMObjCBindingsSupport \|\| $svgFontsSupport
	\|\| $svgForeignObjectSupport \|\| $svgUseSupport;


	my $programName = basename($0);
	my $usage = <<EOF;
	Usage: $programName [options] [options to pass to build system]
	--help Show this help message
	--clean Cleanup the build directory
	--debug Compile in debug mode
	--cairo-win32 Build using Cairo (rather than CoreGraphics) on Windows
	--chromium Build the Chromium port on Mac/Win/Linux
	--gtk Build the GTK+ port
	--qt Build the Qt port

	--makeargs=<arguments> Optional Makefile flags

	--minimal No optional features, unless explicitly enabled.

	EOF

	my %options = (
	'help' => \$showHelp,
	'clean' => \$clean,
	'makeargs=s' => \$makeArgs,
	'minimal' => \$minimal,
	);

	# Build usage text and options list from features
	foreach (@features) {
	my $opt = sprintf("%-35s", " --[no-]$_->{option}");
	$usage .= "$opt $_->{desc} (default: $_->{default})\n";
	$options{"$_->{option}!"} = $_->{value};
	}

	GetOptions(%options);

	if ($showHelp) {
	print STDERR $usage;
	exit 1;
	}

	checkRequiredSystemConfig();
	setConfiguration();

	my $productDir = productDir();

	# Check that all the project directories are there.
	my @projects = ("JavaScriptCore", "WebCore", "WebKit");
	# Only Apple builds JavaScriptGlue, and only on the Mac
	splice @projects, 1, 0, "JavaScriptGlue" if isAppleMacWebKit();

	my @otherDirs = ("WebKitLibraries");
	for my $dir (@projects, @otherDirs) {
	if (! -d $dir) {
	die "Error: No $dir directory found. Please do a fresh checkout.\n";
	}
	}

	my @options = ();

	# enable autotool options accordingly
	if (isGtk()) {
	foreach (@features) {
	push @options, autotoolsFlag(${$_->{value}}, $_->{option});
	}

	push @options, "--makeargs=" . $makeArgs if defined($makeArgs);
	} elsif (isAppleMacWebKit()) {
	push @options, XcodeOptions();

	sub option($$)
	{
	my ($feature, $isEnabled) = @_;
	return $feature . "=" . ($isEnabled ? $feature : " ");
	}

	foreach (@features) {
	if ($_->{option} eq "coverage") {
	push @options, XcodeCoverageSupportOptions() if $coverageSupport;
	} else {
	push @options, option($_->{define}, ${$_->{value}});
	}
	}

	# Copy library and header from WebKitLibraries to a findable place in the product directory.

	my @librariesToCopy = (
	"libWebKitSystemInterfaceTiger.a",
	"libWebKitSystemInterfaceLeopard.a",
	"libWebKitSystemInterfaceSnowLeopard.a",
	"libWebCoreSQLite3.a",
	);
	foreach my $libName (@librariesToCopy) {
	my $srcLib = "WebKitLibraries/" . $libName;
	my $lib = "$productDir/" . $libName;
	if (!-e $lib \|\| -M $lib > -M $srcLib) {
	print "Updating $lib\n";
	system "ditto", $srcLib, $lib;
	system "ranlib", $lib;
	}
	}

	# FIXME: This code should be abstracted to not be copy/paste.
	my $srcHeader = "WebKitLibraries/WebKitSystemInterface.h";
	my $header = "$productDir/usr/local/include/WebKitSystemInterface.h";
	if (!-e $header \|\| -M $header > -M $srcHeader) {
	print "Updating $header\n";
	system "mkdir", "-p", "$productDir/usr/local/include";
	system "ditto", $srcHeader, $header;
	}

	my $srcHeaderDir = "WebKitLibraries/WebCoreSQLite3";
	my $headerDir = "$productDir/WebCoreSQLite3";
	if (!-e $headerDir \|\| -M $headerDir > -M $srcHeaderDir) {
	print "Updating $headerDir\n";
	system "ditto", $srcHeaderDir, $headerDir;
	}
	} elsif (isAppleWinWebKit()) {
	# Copy WebKitSupportLibrary to the correct location in WebKitLibraries so it can be found.
	# Will fail if WebKitSupportLibrary.zip is not in source root.
	(system("perl WebKitTools/Scripts/update-webkit-support-libs") == 0) or die;
	} elsif (isQt()) {
	@options = @ARGV;
	push @options, "--makeargs=" . $makeArgs if defined($makeArgs);

	foreach (@features) {
	push @options, "DEFINES+=$_->{define}=${$_->{value}}" if ${$_->{value}} != $_->{default};
	}
	}

	# Force re-link of existing libraries if different than expected
	removeLibraryDependingOnSVG("WebCore", $svgSupport);

	if (isWx()) {
	downloadWafIfNeeded();
	push @projects, 'WebKitTools/wx/browser';
	push @projects, 'WebKit/wx/bindings/python';
	}

	if (isChromium()) {
	# Chromium doesn't build by project directories.
	@projects = ();
	my $result = buildChromium($clean, @options);
	exit $result if $result;
	}

	# Build, and abort if the build fails.
	for my $dir (@projects) {
	chdir $dir or die;
	my $result = 0;

	# For Gtk and Qt the WebKit project builds all others
	if ((isGtk() \|\| isQt()) && $dir ne "WebKit") {
	chdir ".." or die;
	next;
	}

	if (isGtk()) {
	$result = buildGtkProject($dir, $clean, @options);
	} elsif (isQt()) {
	$result = buildQMakeQtProject($dir, $clean, @options);
	} elsif (isAppleMacWebKit()) {
	$result = buildXCodeProject($dir, $clean, @options, @ARGV);
	} elsif (isAppleWinWebKit()) {
	if ($dir eq "WebKit") {
	$result = buildVisualStudioProject("win/WebKit.vcproj/WebKit.sln", $clean);
	}
	} elsif (isWx()) {
	@options = ();
	if (defined($makeArgs)) {
	@options = split(/ /, $makeArgs);
	}
	if ($dir eq "WebKit" && isWx()) {
	chdir 'wx' or die;
	}

	$result = buildWafProject($dir, $clean, @options);
	}

	if (exitStatus($result)) {
	if (isAppleWinWebKit()) {
	print "\n\n===== BUILD FAILED ======\n\n";
	my $scriptDir = relativeScriptsDir();
	print "Please ensure you have run $scriptDir/update-webkit to install depenedencies.\n\n";
	my $baseProductDir = baseProductDir();
	print "You can view build errors by checking the BuildLog.htm files located at:\n$baseProductDir/obj/<project>/<config>.\n";
	}
	exit exitStatus($result);
	}
	chdirWebKit();
	}

	# Don't report the "WebKit is now built" message after a clean operation.
	exit if $clean;

	# Write out congratulations message.
	writeCongrats();

	exit 0;

	sub formatBuildTime($)
	{
	my ($buildTime) = @_;

	my $buildHours = int($buildTime / 3600);
	my $buildMins = int(($buildTime - $buildHours * 3600) / 60);
	my $buildSecs = $buildTime - $buildHours * 3600 - $buildMins * 60;

	if ($buildHours) {
	return sprintf("%dh:%02dm:%02ds", $buildHours, $buildMins, $buildSecs);
	}
	return sprintf("%02dm:%02ds", $buildMins, $buildSecs);
	}

	sub writeCongrats()
	{
	my $launcherPath = launcherPath();
	my $launcherName = launcherName();
	my $endTime = time();
	my $buildTime = formatBuildTime($endTime - $startTime);

	print "\n";
	print "===========================================================\n";
	print " WebKit is now built ($buildTime). \n";
	if (!isChromium()) {
	print " To run $launcherName with this newly-built code, use the\n";
	print " \"$launcherPath\" script.\n";
	}
	print "===========================================================\n";
	}