fail () if !$ok;
start_step ("Build");
- run ("cd $builddir/$tarball_dir/_build && make", "build");
+ run ("cd $builddir/$tarball_dir/_build && make -j2", "build");
start_step ("Install");
run ("cd $builddir/$tarball_dir/_build && make install DESTDIR=\$PWD/pspp-$binary_version", "install");