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#!/usr/bin/perl -w

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# Copyright (C) 2005, 2006 Apple Computer, Inc.  All rights reserved.
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#
# 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.

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# Simplified build script for Web Kit Open Source Project.

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

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my $crossDocumentMessagingSupport = 1;
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my $databaseSupport = 1;
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my $domStorageSupport = 1;
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my $iconDatabaseSupport = 1;
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my $offlineWebApplicationSupport = 1;
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my $svgSupport = 1;
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my $svgExperimentalSupport = 0;
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my $svgAnimationSupport = 1;
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my $svgFiltersSupport = $svgExperimentalSupport;
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my $svgForeignObjectSupport = 1;
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my $svgUseSupport = 1;
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my $svgFontsSupport = 1;
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my $svgAsImageSupport = 1;
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my $xpathSupport = 1;
my $xsltSupport = 1;
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my $coverageSupport = 0;
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my $videoSupport = isOSX() || isCygwin(); # Enable by default on OSX and Windows
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my $showHelp = 0;
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my $clean = 0;
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my $buildUniversal = 0;
my $buildSixtyFourBit = 0;
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my $programName = basename($0);
my $usage = <<EOF;
Usage: $programName [options] [options to pass to build system]
  --help                        Show this help message
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  --clean                       Perform a clean build
  --universal                   Build 2-way universal (PPC and Intel 32-bit)
  --64-bit                      Build 64-bit, combine with --universal to build 4-way universal
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  --[no-]offline-web-applications   Toggle Offline Web Application Support (default : $offlineWebApplicationSupport)
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  --[no-]cross-document-messaging   Toggle cross-document messaging support (default: $crossDocumentMessagingSupport)
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  --[no-]database               Toggle Database Support (default: $databaseSupport)
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  --[no-]dom-storage            Toggle DOM Storage Support (default: $domStorageSupport)
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  --[no-]icon-database          Toggle Icon database support (default: $iconDatabaseSupport)
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  --[no-]svg                    Toggle SVG support (default: $svgSupport)
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  --[no-]svg-experimental       Toggle SVG experimental features support (default: $svgExperimentalSupport, 
                                implies SVG Support)
  --[no-]svg-animation          Toggle SVG animation support (default: $svgAnimationSupport, implies SVG Support)
  --[no-]svg-filters            Toggle SVG filters support (default: $svgFiltersSupport, implies SVG Support)
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  --[no-]svg-foreign-object     Toggle SVG forgeing object support (default: $svgForeignObjectSupport, implies SVG Support)
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  --[no-]svg-fonts              Toggle SVG fonts support (default: $svgFontsSupport, implies SVG Support)
  --[no-]svg-as-image           Toggle SVG as Image support (default: $svgAsImageSupport, implies SVG Support)
  --[no-]svg-use                Toggle SVG use element support (default: $svgUseSupport, implies SVG Support)
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  --[no-]xpath                  Toggle XPath support (default: $xpathSupport)
  --[no-]xslt                   Toggle XSLT support (default: $xsltSupport)
  --[no-]video                  Toggle Video support (default: $videoSupport)
  --[no-]coverage               Toggle code coverage support (default: $coverageSupport)
EOF
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GetOptions('cross-document-messaging!' => \$crossDocumentMessagingSupport,
           'database!' => \$databaseSupport,
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           'dom-storage!' => \$domStorageSupport,
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           'icon-database!' => \$iconDatabaseSupport,
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           'offline-web-applications!' => \$offlineWebApplicationSupport,
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           'svg!' => \$svgSupport,
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           'svg-experimental!' => \$svgExperimentalSupport,
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           'svg-animation!' => \$svgAnimationSupport,
           'svg-filters!' => \$svgFiltersSupport,
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           'svg-foreign-object!' => \$svgForeignObjectSupport,
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           'svg-fonts!' => \$svgFontsSupport,
           'svg-as-image!' => \$svgAsImageSupport,
           'svg-use!' => \$svgUseSupport,
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           'xpath!' => \$xpathSupport,
           'xslt!' => \$xsltSupport,
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           'video!' => \$videoSupport,
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           'coverage!' => \$coverageSupport,
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           'help' => \$showHelp,
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           'universal' => \$buildUniversal,
           '64-bit' => \$buildSixtyFourBit,
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           'clean' => \$clean);
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if ($showHelp) {
   print STDERR $usage;
   exit 1;
}
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$svgExperimentalSupport = 0 unless $svgSupport;
$svgAnimationSupport = 0 unless $svgSupport;
$svgFiltersSupport = 0 unless $svgSupport;
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$svgForeignObjectSupport = 0 unless $svgSupport;
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$svgFontsSupport = 0 unless $svgSupport;
$svgAsImageSupport = 0 unless $svgSupport;
$svgUseSupport = 0 unless $svgSupport;

if ($svgExperimentalSupport) {
    $svgAnimationSupport = 1;
    $svgFiltersSupport = 1;
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    $svgForeignObjectSupport = 1;
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    $svgFontsSupport = 1;
    $svgAsImageSupport = 1;
    $svgUseSupport = 1;
}
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checkRequiredSystemConfig();
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setConfiguration();
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chdirWebKit();
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# FIXME: Migrate build-wxwebkit commands into build-webkit.
if (isWx()) {
    my @opts = ();
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    $ENV{"WEBKITOUTPUTDIR"} = productDir();
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    foreach (@ARGV) {
        if ($_ eq "wxgc" || $_ eq "wxpython") {
            push(@opts, $_);
        }
    }
    if ($clean) {
        push(@opts, "clean");
    }
    system "WebKitTools/wx/build-wxwebkit @opts";
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    exit exitStatus($?);
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}


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my $productDir = productDir();
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my @overrideFeatureDefinesOption = ();
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push @overrideFeatureDefinesOption, "ENABLE_CROSS_DOCUMENT_MESSAGING" if $crossDocumentMessagingSupport;
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push @overrideFeatureDefinesOption, "ENABLE_DATABASE" if $databaseSupport;
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push @overrideFeatureDefinesOption, "ENABLE_DOM_STORAGE" if $domStorageSupport;
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push @overrideFeatureDefinesOption, "ENABLE_ICONDATABASE" if $iconDatabaseSupport;
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push @overrideFeatureDefinesOption, "ENABLE_OFFLINE_WEB_APPLICATIONS" if $offlineWebApplicationSupport;
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push @overrideFeatureDefinesOption, "ENABLE_SVG" if $svgSupport;
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push @overrideFeatureDefinesOption, "ENABLE_SVG_ANIMATION" if $svgAnimationSupport;
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push @overrideFeatureDefinesOption, "ENABLE_SVG_AS_IMAGE" if $svgAsImageSupport;
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push @overrideFeatureDefinesOption, "ENABLE_SVG_FILTERS" if $svgFiltersSupport;
push @overrideFeatureDefinesOption, "ENABLE_SVG_FONTS" if $svgFontsSupport;
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push @overrideFeatureDefinesOption, "ENABLE_SVG_FOREIGN_OBJECT" if $svgForeignObjectSupport;
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push @overrideFeatureDefinesOption, "ENABLE_SVG_USE" if $svgUseSupport;
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push @overrideFeatureDefinesOption, "ENABLE_VIDEO" if $videoSupport;
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push @overrideFeatureDefinesOption, "ENABLE_XPATH" if $xpathSupport;
push @overrideFeatureDefinesOption, "ENABLE_XSLT" if $xsltSupport;
my $overrideFeatureDefinesString = "FEATURE_DEFINES=" . join(" ", @overrideFeatureDefinesOption);
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my @coverageSupportOption = ();
if ($coverageSupport) {
    push @coverageSupportOption, "GCC_GENERATE_TEST_COVERAGE_FILES=YES";
    push @coverageSupportOption, "GCC_INSTRUMENT_PROGRAM_FLOW_ARCS=YES";
    push @coverageSupportOption, "EXTRA_LINK= -ftest-coverage -fprofile-arcs";
    push @coverageSupportOption, "OTHER_CFLAGS= -MD";
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    push @coverageSupportOption, "OTHER_LDFLAGS=\$(OTHER_LDFLAGS) -ftest-coverage -fprofile-arcs -framework AppKit";
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}

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# Check that all the project directories are there.
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my @projects = ("JavaScriptCore", "JavaScriptGlue", "WebCore", "WebKit");
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my @otherDirs = ("WebKitLibraries");
for my $dir (@projects, @otherDirs) {
    if (! -d $dir) {
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        die "Error: No $dir directory found. Please do a fresh checkout.\n";
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    }
}

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my @options = ();

if ($clean && isOSX()) {
    push(@options, "-alltargets");
    push(@options, "clean");
}

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if ($buildSixtyFourBit && isOSX()) {
    my $cpuVendor = `sysctl -n machdep.cpu.vendor`;
    chomp $cpuVendor;

    if ($buildUniversal) {
        push(@options, "ARCHS=ppc ppc64 i386 x86_64");
    } elsif ($cpuVendor eq "GenuineIntel") {
        push(@options, "ARCHS=i386 x86_64");
    } else {
        push(@options, "ARCHS=ppc ppc64");
    }
} elsif ($buildUniversal && isOSX()) {
    push(@options, "ARCHS=ppc i386");
}

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# enable autotool options accordingly
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if (isGtk() && !useQmake()) {
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    push @options, autotoolsFlag($crossDocumentMessagingSupport, "cross-document-messaging");
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    push @options, autotoolsFlag($databaseSupport, "database");
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    push @options, autotoolsFlag($domStorageSupport, "dom-storage");
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    push @options, autotoolsFlag($iconDatabaseSupport, "icon-database");
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    push @options, autotoolsFlag($offlineWebApplicationSupport, "offline-web-applications");
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    push @options, autotoolsFlag($svgSupport, "svg");
    push @options, autotoolsFlag($svgAnimationSupport, "svg-animation");
    push @options, autotoolsFlag($svgFiltersSupport, "svg-filters");
    push @options, autotoolsFlag($svgForeignObjectSupport, "svg-foreign-object");
    push @options, autotoolsFlag($svgFontsSupport, "svg-fonts");
    push @options, autotoolsFlag($svgAsImageSupport, "svg-as-image");
    push @options, autotoolsFlag($svgUseSupport, "svg-use-element");
    push @options, autotoolsFlag($xpathSupport, "xpath");
    push @options, autotoolsFlag($xsltSupport, "xslt");
    push @options, autotoolsFlag($videoSupport, "video");
    push @options, autotoolsFlag($coverageSupport, "coverage");
}

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if (isOSX()) {
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    push(@options, XcodeOptions());

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    # Copy library and header from WebKitLibraries to a findable place in the product directory.
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    my $srcLib = "WebKitLibraries/libWebKitSystemInterfaceTiger.a";
    my $lib = "$productDir/libWebKitSystemInterfaceTiger.a";
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    if (!-e $lib || -M $lib > -M $srcLib) {
        print "Updating $lib\n";
        system "ditto", $srcLib, $lib;
        system "ranlib", $lib;
    }
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    $srcLib = "WebKitLibraries/libWebKitSystemInterfaceLeopard.a";
    $lib = "$productDir/libWebKitSystemInterfaceLeopard.a";
    if (!-e $lib || -M $lib > -M $srcLib) {
        print "Updating $lib\n";
        system "ditto", $srcLib, $lib;
        system "ranlib", $lib;
    }

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    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;
    }
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    $srcLib = "WebKitLibraries/libWebCoreSQLite3.a";
    $lib = "$productDir/libWebCoreSQLite3.a";
    if (!-e $lib || -M $lib > -M $srcLib) {
        print "Updating $lib\n";
        system "ditto", $srcLib, $lib;
        system "ranlib", $lib;
    }

    my $srcHeaderDir = "WebKitLibraries/WebCoreSQLite3";
    my $headerDir = "$productDir/WebCoreSQLite3";
    if (!-e $headerDir || -M $headerDir > -M $srcHeaderDir) {
        print "Updating $headerDir\n";
        system "ditto", $srcHeaderDir, $headerDir;
    }
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}
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if (isGtk() && isDarwin() && useQmake() && !$ENV{QMAKESPEC}) {
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    # The qmake from Trolltech's binary "QT for Mac" distribution tries to
    # create xcode projects, not Makefiles
    $ENV{QMAKESPEC} = "macx-g++";
}

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if (isCygwin()) {
    # 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;
}

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# Force re-link of existing libraries if different than expected
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removeLibraryDependingOnSVG("WebCore", $svgSupport);
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# Build, and abort if the build fails.
for my $dir (@projects) {
    chdir $dir or die;
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    my $result = 0;
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    if (isGtk()) {
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        if ($dir ne "WebKit") {
            chdir ".." or die;
            next;
        }
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        $result = buildGtkProject($dir, $clean,  @options);
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    } elsif (isQt()) {
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        if ($dir ne "WebKit") {
            chdir ".." or die;
            next;
        }
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        $result = buildQMakeQtProject($dir, $clean);
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    } elsif (isOSX()) {
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        $result = system "xcodebuild", "-project", "$dir.xcodeproj", @options, $overrideFeatureDefinesString, @coverageSupportOption, @ARGV;
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    } elsif (isCygwin()) {
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        if ($dir eq "WebKit") {
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            $result = buildVisualStudioProject("win/WebKit.vcproj/WebKit.sln", $clean);
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        }
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    }
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    if (exitStatus($result)) {
        if (isCygwin()) {
            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);
    }
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    chdir ".." or die;
}

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

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# Write out congratulations message.
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my $launcherPath = launcherPath();
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my $launcherName = launcherName();
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print "\n";
print "===========================================================\n";
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print " WebKit is now built. To run $launcherName with this newly-built\n";
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print " code, use the \"$launcherPath\" script.\n";
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if ($svgSupport) {
    print "\n NOTE: WebKit has been built with SVG support enabled.\n";
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    print " $launcherName will have SVG viewing capabilities.\n";
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}
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if ($svgAnimationSupport or $svgFiltersSupport or $svgForeignObjectSupport or $svgFontsSupport or $svgAsImageSupport or $svgUseSupport) {
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    print " Your build supports the following (optional) SVG features: \n";
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    print "  * Basic SVG animation.\n" if $svgAnimationSupport;
    print "  * SVG filters.\n" if $svgFiltersSupport;
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    print "  * SVG foreign object.\n" if $svgForeignObjectSupport;
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    print "  * SVG fonts.\n" if $svgFontsSupport;
    print "  * SVG as image.\n" if $svgAsImageSupport;
    print "  * SVG <use> support.\n" if $svgUseSupport;
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}
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print "===========================================================\n";