+else {
+ $dh{FILENAME}="/$dh{FILENAME}";
+}
+
+my $max_procs=get_buildoption("parallel") || 1;
+
+my $processes=1;
+my $exit=0;
+sub reap {
+ if (wait == -1) {
+ $processes=0;
+ }
+ else {
+ $processes--;
+ $exit=1 if $? != 0;
+ }
+}
+
+foreach my $package (@{$dh{DOPACKAGES}}) {
+ my $pid=fork();
+ if (! defined $pid) {
+ error("fork failed! $!");
+ }
+ if ($pid) { # parent
+ $processes++;
+ reap while $processes > $max_procs;
+ next;
+ }
+
+ # child
+ my $tmp=tmpdir($package);
+ if (exists $ENV{DH_ALWAYS_EXCLUDE} && length $ENV{DH_ALWAYS_EXCLUDE}) {
+ if (! compat(5)) {
+ complex_doit("find $tmp $dh{EXCLUDE_FIND} | xargs rm -rf");
+ }
+ else {
+ # Old broken code here for compatibility. Does not
+ # remove everything.
+ complex_doit("find $tmp -name $_ | xargs rm -rf")
+ foreach split(":", $ENV{DH_ALWAYS_EXCLUDE});
+ }
+ }
+ if (! is_udeb($package)) {
+ doit("dpkg-deb", @{$dh{U_PARAMS}}, "--build", $tmp, $dh{DESTDIR}.$dh{FILENAME});
+ }
+ else {
+ my $filename=$dh{FILENAME};
+ if (! $filename) {
+ $filename="/".udeb_filename($package);
+ }
+ doit("dpkg-deb", @{$dh{U_PARAMS}}, "--build", $tmp, $dh{DESTDIR}.$filename);
+ }
+ exit 0;
+}
+
+reap while $processes;
+exit $exit;
+
+=head1 SEE ALSO
+
+L<debhelper(7)>
+
+This program is a part of debhelper.
+
+=head1 AUTHOR
+
+Joey Hess <joeyh@debian.org>
+
+=cut