On Wed, 22 Jun 2022 at 07:05, Alexandre Oliva via Libstdc++ <libstd...@gcc.gnu.org> wrote: > > > This patch was originally meant to reduce the likelihood that > nonexistent_path() returns the same pathname for from and to. > > It was prompted by a target system with a non-random implementation of > mkstemp, that returns a predictable sequence of filenames and selects > the first one that isn't already taken. > > That turned out not to be enough: nonexistent_path adds a suffix to > the filename chosen by mkstemp and removes the file it created, so > mkstemp may very well insist on the same basename, and the case that > doesn't use mkstemp doesn't even check whether the file already > exists. > > Anyway, by the time I realized this wasn't enough, I'd already > implemented some of the changes, and I figured I might as well > contribute them, even though they don't really solve any problem, and > even if they did, they'd be just a partial solution. > > Regstrapped on x86_64-linux-gnu, also tested with a cross to > aarch64-rtems6. Ok to install?
OK
