launching multiple jobs on a slow file system and slow OS. Fixed the one already committed for EiffelNet as we had removed `local_clean' which is still needed for the `clean' target. git-svn-id: https://svn.origo.ethz.ch/eiffelstudio/trunk/Src/library/cURL@77516 8089f293-4706-0410-a29e-feb5c42a2edf