--- a/prebuild.sh Wed May 31 12:22:36 2017 +0200
+++ b/prebuild.sh Wed May 31 12:32:22 2017 +0200
@@ -22,7 +22,7 @@
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
autoreconf -i
-mkdir build
+mkdir -p build
cd build
../configure $*