#!/usr/bin/perl

my $Cookie = "/System/Library/Frameworks/QuickTime.framework/Versions/A/Headers/.qtheaderversion";
my $SYSVERS = "$ARGV[3]"."/System/Library/CoreServices/SystemVersion.plist";
my $AvailabilityMacros="$ARGV[2]"."/usr/include/AvailabilityMacros.h";
my $AvailabilityMacrosOrig="$ARGV[2]"."/usr/include/AvailabilityMacros.h.orig";
my $AvailabilityMacrosQT="$ARGV[2]"."/usr/include/AvailabilityMacros.h.qt";


system("/usr/bin/touch \"$Cookie\"");

if(CheckVersion( "$SYSVERS", "10.4", "ProductVersion", "<" )) {
	if ( -e "$AvailabilityMacros" ) {
		if ( ! -e "$AvailabilityMacrosOrig") {
			system ("/bin/mv -f \"$AvailabilityMacros\" \"$AvailabilityMacrosOrig\"");
		}
	}
	system ("/bin/mv -f \"$AvailabilityMacrosQT\" \"$AvailabilityMacros\"");
} else {
	system ("/bin/rm -f \"$AvailabilityMacrosQT\"");
}
	

##################

sub CheckVersion
{
    my $path            = $_[0];
    my $version         = $_[1];
    my $keyName         = $_[2];
    my $operator        = $_[3];

    if (! -e $path) {
        return 0;
    }

    if (!$operator) {
        $operator = "==";
    }

    my $oldSeperator = $/;
    $/ = \0;

    open( PLIST, "$path") || do {
        return 0;
    };

    $plistData = <PLIST>;
    $plistData =~ /<dict>(.*?)<\/dict>/gis;

    @items = split(/<key>/, $plistData);

    shift @items;
    foreach $item (@items) {
        $item =~ /(.*?)<\/key>.*?<string>(.*?)<\/string>/gis;
        $versiondata{ $1 } = $2;
    }

    close(PLIST);

    $/ = $oldSeperator;

    @theVersionArray = split(/\./, $versiondata{$keyName});
    for ($i = 0; $i < 3; $i++) {
        if(!$theVersionArray[$i]) {
            $theVersionArray[$i] = '0';
        }
    }

    @versionArray = split(/\./, $version);
    
    my $actualVersion;

    for ($i = 0; $i < 3; $i++) {
        if (($theVersionArray[$i] != $versionArray[$i]) or ($i == 2)) {

            $actualVersion = $theVersionArray[$i];
            $version = $versionArray[$i];

            last;
        }
    }

    my $expression = '$actualVersion ' . $operator . ' $version';
    if( eval ($expression) )
    {
        return 1;
    }
    else
    {
        return 0;
    }

}

#######################################
