+ my @opts=("-s", "-n", "--no-print-directory");
+ my $buildpath = $this->get_buildpath();
+ unshift @opts, "-C", $buildpath if $buildpath ne ".";
+ open(SAVEDERR, ">&STDERR");
+ open(STDERR, ">/dev/null");
+ open(MAKE, "-|", $this->{makecmd}, @opts, $target);
+ my $output=<MAKE>;
+ chomp $output;
+ close MAKE;
+ open(STDERR, ">&SAVEDERR");
+ return defined $output && length $output;
+}
+
+sub do_make {
+ my $this=shift;
+
+ # Avoid possible warnings about unavailable jobserver,
+ # and force make to start a new jobserver.
+ clean_jobserver_makeflags();
+
+ # Note that this will override any -j settings in MAKEFLAGS.
+ unshift @_, "-j" . ($this->get_parallel() > 0 ? $this->get_parallel() : "");
+
+ $this->doit_in_builddir($this->{makecmd}, @_);