On Sun, 2022-10-09 at 16:39 -0400, Zack Weinberg wrote: > Paul, can I suggest that this kind of problem would be easier to > troubleshoot if make printed the name of the temporary file that it > could not fopen? In the current Git version, it does do this: ... _("fopen: temporary file %s: %s"), newnm, strerror (errno)); > (Also, I *do* hope make is using `mkstemp` and `fdopen`, internally, > rather than `fopen`?) In the current Git version it does. I don't recall what the 4.3 release did.