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10.670 mtx_init

Documentation:
https://www.gnu.org/software/libc/manual/html_node/ISO-C-Mutexes.html.

Gnulib module: mtx

Portability problems fixed by Gnulib:

• This function is missing on many platforms: glibc 2.27, macOS 14, FreeBSD 9.3, NetBSD 8.0, OpenBSD 6.7, Minix 3.1.8, AIX 7.1, HP-UX 11.31, Solaris 11.3, Cygwin 2.9, mingw, MSVC 14, Android API level 29.

Portability problems not fixed by Gnulib: