5 POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/tfind.html}
9 Portability problems fixed by Gnulib:
12 This function is missing on some platforms:
13 Minix 3.1.8, mingw, MSVC 14, Android 4.0.4.
16 Portability problems not fixed by Gnulib: