This chapter describes which functions and function-like macros specified by ISO C (including ISO TS 18661-1) or POSIX are substituted by Gnulib, which portability pitfalls are fixed by Gnulib, and which (known) portability problems are not worked around by Gnulib.
The notation “Gnulib module: —” means that Gnulib does not provide a
module providing a substitute for the function. When the list
“Portability problems not fixed by Gnulib” is empty, such a module is
not needed: No portability problems are known. Otherwise, it indicates
that such a module would be useful but is not available: No one so far
found this function important enough to contribute a substitute for it.
If you need this particular function, you may write to
<bug-gnulib at gnu dot org>.
This list of functions is sorted according to the header that declares them.
<aio.h><arpa/inet.h><assert.h><complex.h><ctype.h><devctl.h><dirent.h><dlfcn.h><endian.h><errno.h><fcntl.h><fenv.h><fmtmsg.h><fnmatch.h><ftw.h><glob.h><grp.h><iconv.h><inttypes.h><langinfo.h><libgen.h><libintl.h><locale.h><math.h><monetary.h><mqueue.h><ndbm.h><net/if.h><netdb.h><netinet/in.h><nl_types.h><poll.h><pthread.h><pwd.h><regex.h><sched.h><search.h><semaphore.h><setjmp.h><signal.h><spawn.h><stdarg.h><stdatomic.h><stdbit.h><stdio.h><stdlib.h><string.h><strings.h><sys/ipc.h><sys/mman.h><sys/msg.h><sys/resource.h><sys/select.h><sys/sem.h><sys/shm.h><sys/socket.h><sys/stat.h><sys/statvfs.h><sys/time.h><sys/times.h><sys/uio.h><sys/utsname.h><sys/wait.h><syslog.h><termios.h><threads.h><time.h><uchar.h><unistd.h><utmpx.h><wchar.h><wctype.h><wordexp.h>