diff --git a/build.xml b/build.xml
index 002bb26d6..6ab6b7377 100644
--- a/build.xml
+++ b/build.xml
@@ -368,7 +368,7 @@
-
+
@@ -376,7 +376,7 @@
-
+
@@ -506,6 +506,7 @@
+
@@ -550,11 +551,13 @@
+
+
+
+my $cmdLine = $ENV{'COMP_LINE'};
+my $antCmd = $ARGV[0];
+my $word = $ARGV[1];
+
+my @completions;
+if ($word =~ /^-/) {
+ list( restrict( $word, getArguments() ));
+} elsif ($cmdLine =~ /-(f|buildfile)\s+\S*$/) {
+ list( getBuildFiles($word) );
+} else {
+ list( restrict( $word, getTargets() ));
+}
+
+exit(0);
+
+sub list {
+ for (@_) {
+ print "$_\n";
+ }
+}
+
+sub restrict {
+ my ($word, @completions) = @_;
+ grep( /^\Q$word\E/, @completions );
+}
+
+sub getArguments {
+ qw(-buildfile -debug -emacs -f -find -help -listener -logfile
+ -logger -projecthelp -quiet -verbose -version);
+}
+
+
+sub getBuildFiles {
+ my ($word) = @_;
+ grep( /\.xml$/, glob( "$word*" ));
+}
+
+sub getTargets {
+
+ # Look for build-file
+ my $buildFile = 'build.xml';
+ if ($cmdLine =~ /-(f|buildfile)\s+(\S+)/) {
+ $buildFile = $2;
+ }
+ return () unless (-f $buildFile);
+
+ # Run "ant -projecthelp" to list targets. Keep a cache of results in a
+ # cache-file.
+ my $cacheFile = $buildFile;
+ $cacheFile =~ s|(.*/)?(.*)|${1}.ant-targets-${2}|;
+ if ((!-e $cacheFile) || (-M $buildFile) < (-M $cacheFile)) {
+ open( CACHE, '>'.$cacheFile ) || die "can\'t write $cacheFile: $!\n";
+ open( HELP, "$antCmd -projecthelp -f '$buildFile'|" ) || return();
+ my %targets;
+ while( ) {
+ if (/^\s+(\S+)/) {
+ $targets{$1}++;
+ }
+ }
+ my @targets = sort keys %targets;
+ for (@targets) { print CACHE "$_\n"; }
+ return @targets;
+ }
+
+ # Read the target-cache
+ open( CACHE, $cacheFile ) || die "can\'t read $cacheFile: $!\n";
+ my @targets;
+ while () {
+ chop;
+ s/\r$//; # for Cygwin
+ push( @targets, $_ );
+ }
+ close( CACHE );
+ @targets;
+
+}
+
+
+