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13.70.4 canonicalize_file_name

Documentation:

• https://www.gnu.org/software/libc/manual/html_node/Symbolic-Links.html,
• man canonicalize_file_name.

Gnulib module: canonicalize-lgpl

Portability problems fixed by Gnulib:

• This function is missing on many non-glibc platforms: macOS 14, FreeBSD 14.0, NetBSD 10.0, OpenBSD 6.7, Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 10, Cygwin 1.5.x, mingw, MSVC 14, Android 9.0.
• This function fails to detect trailing slashes on non-directories on some platforms: glibc 2.3.5.

Portability problems not fixed by Gnulib: