make -j 3 clean all sometimes fail. This system has two cores, running FreeBSD 8.2 and autoconf-2.69, automake-1.12, libtool-2.4.2 These are the failures, in order of frequency. The first failure is the most common by far. In total, I seem to have a failure rate of about 60%. $ make -j 3 clean all CCLD src/test/test gcc: src/test/src_test_test-test_data.o: No such file or directory gcc: src/test/src_test_test-tinytest.o: No such file or directory CCLD src/or/tor gcc: src/or/tor_main.o: No such file or directory CCLD src/test/test gcc: src/test/src_test_test-test_data.o: No such file or directory Related to legacy/trac#6524.