Commit 23e69f6e6d29b0f9aa5aa3aab2464b3cf38a59bf
2024-05-27T12:34:35
test: check that subsecond mtime works with make. Trying to fix https://bugs.gnu.org/68808. * m4/sanity.m4 (_AM_FILESYSTEM_TIMESTAMP_RESOLUTION): check that make works with subsecond mtimes, as well as sleep and ls. (Known to fail with the make 3.81 that ships with macOS.) * configure.ac (MTIME_RESOLUTION): notice if it erroneously expands to the empty string, i.e., fall back to 1 if $am_cv_filesystem_timestamp_resolution ended up being unset. * t/ax/test-defs.in (MTIME_RESOLUTION): also fall back to 1 if the variable to not set, with a message. Fix other typos en passant. * HACKING: tweak.