umount
------

Documentation:

  * Mount Unmount Remount (libc),

  * man umount.

Gnulib module: ---

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

  * This function is missing on some platforms: macOS 14, FreeBSD 14.0, NetBSD 10.0, OpenBSD 7.5, AIX 5.1, mingw, MSVC 14.