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10.614 mkstemp

POSIX specification:
https://pubs.opengroup.org/onlinepubs/9699919799/functions/mkstemp.html

Gnulib module: mkstemp

Portability problems fixed by Gnulib:

• This function is missing on some platforms: mingw, MSVC 14.
• On platforms where off_t is a 32-bit type, mkstemp may not work correctly to create files 2 GiB and larger. See Large File Support.
• On some older platforms, mkstemp can create a world or group writable or readable file, if you haven’t set the process umask to 077. This is a security risk.

Portability problems not fixed by Gnulib:

The gnulib module clean-temp can create temporary files that will not be left behind after signals such as SIGINT.