On Debian, and with coreutils bootstrapped with bleeding-edge autotools. Here are the details: $ autoconf --version | head -1 autoconf (GNU Autoconf) 2.69.41-26cb $ git describe v8.20-17-g801cd62 $ make check ... FAIL: test-utimens ... # TOTAL: 315 # PASS: 300 # SKIP: 14 # XFAIL: 0 # FAIL: 1 # XPASS: 0 # ERROR: 0 $ cat gnulib-tests/test-utimens.log test-utimens.h:103: assertion failed The config.log file is attached (compressed). Let me know if you need more information. Regards, Stefano