module usage statistics

[Bruno Haible]

I went through all packages listed in users.txt, extracted the requested modules
from the bootstrap.conf / gnulib-cache.m4 / ..., and stored the result in
maint-tools/used-modules/. From these lists, one can make statistics.

Note: The list of packages in users.txt is certainly incomplete;
according to 
https://codesearch.debian.net/search?q=gnulib-tool&literal=1&perpkg=1
there are about 150 packages that use gnulib-tool, not only 101.

Note: These statistics consider only the *explicitly* requested modules, not 
those
that occur as dependencies.

Note: I do *not* mean to imply that a less-used module is somehow less worth 
than
a heavily used module.


Number of modules explicitly requested: 1164

Statistics (# of packages, module):

     51 getopt-gnu
     43 xalloc
     43 progname
     41 gitlog-to-changelog
     39 stdbool
     39 regex
     38 gettext-h
     37 git-version-gen
     37 error
     34 manywarnings
     33 update-copyright
     33 maintainer-makefile
     31 getline
     27 unistd
     27 strerror
     26 stdint
     24 dirname
     24 close
     23 sys_stat
     23 minmax
     22 vasprintf
     22 mkstemp
     22 gnupload
     22 c-ctype
     20 warnings
     20 snprintf
     20 gendocs
     19 strcase
     19 readme-release
     19 configmake
     18 unlocked-io
     18 inttypes
     18 announce-gen
     17 version-etc-fsf
     17 stpcpy
     17 stdlib
     17 malloc-gnu
     17 getaddrinfo
     17 base64
     16 version-etc
     16 verify
     16 strndup
     16 rename
     16 obstack
     16 intprops
     16 c-strcase
     16 closeout
     16 autobuild
     15 sys_wait
     15 strdup-posix
     15 pathmax
     15 gettimeofday
     15 gettext
     15 fcntl
     15 dup2
     15 alloca
     14 strverscmp
     14 string
     14 read-file
     14 quotearg
     14 lstat
     14 hash
     14 gnu-web-doc-update
     14 extensions
     14 attribute
     13 stdio
     13 sigaction
     13 setenv
     13 open
     13 mktime
     13 do-release-commit-and-tag
     13 byteswap
     12 xvasprintf
     12 unlink
     12 socket
     12 signal
     12 quote
     12 locale
     12 localcharset
     12 lib-symbol-visibility
     12 ignore-value
     11 valgrind-tests
     11 sys_time
     11 stddef
     11 stdarg
     11 stat
     11 select
     11 safe-read
     11 realloc-gnu
     11 mkdir
     11 lib-symbol-versions
     11 full-write
     11 fseeko
     11 fnmatch-gnu
     11 fnmatch
     11 fdl
     11 errno
     10 vsnprintf
     10 strsep
     10 strchrnul
     10 stat-time
     10 socklen
     10 readlink
     10 parse-datetime
     10 nanosleep
     10 mempcpy
     10 largefile
     10 inttostr
     10 iconv
     10 gettime
     10 fopen
     10 crypto/md5
     10 bind
     10 assert
      9 xalloc-die
      9 write
      9 time_r
      9 time
      9 strtoumax
      9 strtok_r
      9 strtoimax
      9 strstr
      9 strptime
      9 strcasestr
      9 ssize_t
      9 sigpipe
      9 mkostemp
      9 memchr
      9 lock
      9 ioctl
      9 havelib
      9 ftello
      9 fprintf-posix
      9 fflush
      9 environ
      9 crypto/sha1
      9 connect
      9 canonicalize-lgpl
      9 argp
      8 xstrtol
      8 xstrndup
      8 xgethostname
      8 timespec
      8 tempname
      8 stat-macros
      8 setsockopt
      8 recv
      8 printf-posix
      8 pmccabe2html
      8 opendir
      8 nstrftime
      8 memrchr
      8 memmem
      8 link
      8 lib-msvc-compat
      8 isatty
      8 inet_pton
      8 inet_ntop
      8 glob
      8 getpagesize
      8 fsync
      8 filename
      8 fcntl-h
      8 fclose
      8 canonicalize
      8 binary-io
      8 argmatch
      8 alloca-opt
      7 xstrtoumax
      7 xgetcwd
      7 wchar
      7 vasprintf-posix
      7 unsetenv
      7 unistr/u8-check
      7 unistd-safer
      7 uname
      7 sys_types
      7 strnlen
      7 sigprocmask
      7 signal-h
      7 setlocale
      7 sendto
      7 recvfrom
      7 pipe2
      7 perl
      7 netinet_in
      7 mbswidth
      7 mbrtowc
      7 lseek
      7 listen
      7 gpl-3.0
      7 gnu-make
      7 getsockname
      7 gethostname
      7 getcwd
      7 full-read
      7 fts
      7 fstat
      7 free-posix
      7 flexmember
      7 exitfail
      7 config-h
      7 closedir
      7 accept
      6 wcwidth
      6 utimens
      6 useless-if-before-free
      6 tmpdir
      6 timegm
      6 termios
      6 sys_socket
      6 strtoul
      6 strtol
      6 strerror_r-posix
      6 sprintf-posix
      6 shutdown
      6 send
      6 rmdir
      6 realloc-posix
      6 readline
      6 putenv
      6 propername
      6 poll
      6 pipe-posix
      6 nproc
      6 memmove
      6 lib-ignore
      6 isblank
      6 inline
      6 hash-pjw
      6 gnumakefile
      6 getpass-gnu
      6 getpass
      6 fsusage
      6 fopen-safer
      6 flock
      6 filemode
      6 dirname-lgpl
      6 clock-time
      5 yesno
      5 year2038-recommended
      5 xstrtoimax
      5 xmemdup0
      5 xlist
      5 waitpid
      5 vc-list-files
      5 utimensat
      5 unlinkat
      5 uniwidth/width
      5 unistr/u8-uctomb
      5 unistr/u8-mbtouc
      5 unicase/u8-tolower
      5 sys_select
      5 sys_ioctl
      5 strsignal
      5 streq
      5 stpncpy
      5 stdnoreturn
      5 stdckdint
      5 spawn-pipe
      5 sockets
      5 sig2str
      5 save-cwd
      5 relocatable-prog
      5 readdir
      5 pthread
      5 nl_langinfo
      5 mountlist
      5 libunistring-optional
      5 idx
      5 idcache
      5 human
      5 getpeername
      5 getloadavg
      5 getdelim
      5 ftruncate
      5 fstatat
      5 findprog
      5 execute
      5 exclude
      5 euidaccess
      5 d-type
      5 c-strtod
      5 c-strcasestr
      5 crypto/sha256
      5 calloc-gnu
      5 basename-lgpl
      5 array-list
      5 arpa_inet
      4 year2038
      4 xstrtoll
      4 xsize
      4 xmalloca
      4 xconcat-filename
      4 vsnprintf-posix
      4 verror
      4 vasnprintf
      4 unistr/u8-to-u32
      4 unistr/u8-strmbtouc
      4 unistr/u8-strlen
      4 unistr/u8-mbtoucr
      4 unistr/u32-to-u8
      4 uninorm/nfc
      4 unictype/ctype-space
      4 unicase/u8-toupper
      4 tzset
      4 thread
      4 symlink
      4 strtoull
      4 strtod
      4 strings
      4 striconv
      4 std-gnu11
      4 snprintf-posix
      4 size_max
      4 savedir
      4 same-inode
      4 remove
      4 readutmp
      4 rawmemchr
      4 raise
      4 posix-shell
      4 popen
      4 perror
      4 openat-safer
      4 netdb
      4 mkdtemp
      4 memset
      4 mbsstr
      4 mbsinit
      4 mbrlen
      4 mbiter
      4 mbchar
      4 localename
      4 linked-list
      4 langinfo
      4 hash-pjw-bare
      4 hard-locale
      4 getsockopt
      4 futimens
      4 fstrcmp
      4 fseek
      4 freopen
      4 fpieee
      4 fopen-gnu
      4 filevercmp
      4 filenamecat
      4 fdopendir
      4 fcntl-safer
      4 faccessat
      4 dirfd
      4 dirent
      4 ctype
      4 crypto/sha512
      4 crc
      4 count-leading-zeros
      4 copy-file
      4 cond
      4 closein
      4 chown
      4 backupfile
      4 acl
      3 xstrtol-error
      3 xstrtod
      3 xstdopen
      3 xprintf
      3 xmap
      3 xgetdomainname
      3 xbinary-io
      3 winsz-termios
      3 winsz-ioctl
      3 wctype-h
      3 wctob
      3 wcrtomb
      3 usleep
      3 uniwidth/u8-strwidth
      3 unitypes
      3 unistr/u8-to-u16
      3 unistr/u8-mbsnlen
      3 unistr/u16-to-u8
      3 unistr/u16-mbtouc
      3 uninorm/u8-normalize
      3 uninorm/u32-normalize
      3 uninorm/nfkd
      3 uniname/uniname
      3 unilbrk/ulc-width-linebreaks
      3 unictype/ctype-upper
      3 unictype/ctype-print
      3 unicodeio
      3 timespec-sub
      3 timespec-add
      3 time_rz
      3 sys_resource
      3 sysexits
      3 strtoll
      3 strpbrk
      3 strdup
      3 stdlib-safer
      3 sleep
      3 sh-quote
      3 servent
      3 selinux-h
      3 selinux-at
      3 safe-write
      3 rpmatch
      3 renameat
      3 relocatable-lib-lgpl
      3 readlinkat
      3 random_r
      3 random
      3 posix_spawn
      3 physmem
      3 pclose
      3 openat
      3 nullptr
      3 noreturn
      3 nonblocking
      3 modechange
      3 mkfifo
      3 mkdir-p
      3 memmem-simple
      3 memcpy
      3 memchr2
      3 memcasecmp
      3 mcel-prefer
      3 mbslen
      3 malloc-posix
      3 long-options
      3 list
      3 link-follow
      3 linebuffer
      3 limits-h
      3 lchmod
      3 javacomp-script
      3 isnan
      3 host-cpu-c-abi
      3 hash-map
      3 getopt-posix
      3 getndelim2
      3 gethrxtime
      3 gcd
      3 fwriteerror
      3 ftell
      3 fprintftime
      3 floor
      3 fileblocks
      3 fdopen
      3 fchmodat
      3 fchdir
      3 dtotimespec
      3 dtoastr
      3 d-ino
      3 diffseq
      3 dfa
      3 c-strstr
      3 c-stack
      3 csharpcomp-script
      3 crypto/md5-buffer
      3 crypto/md4
      3 crypto/md2
      3 crypto/gc-md5
      3 crypto/gc-hmac-sha1
      3 crypto/des
      3 close-stream
      3 cloexec
      3 clean-temp
      3 canon-host
      3 calloc-posix
      3 btowc
      3 bison
      3 base32
      3 atexit
      3 assert-h
      3 argz
      3 argv-iter
      3 areadlink-with-size
      3 ansi-c++-opt
      3 alignasof
      2 xstrtold
      2 xstriconv
      2 xset
      2 xprintf-posix
      2 xnanosleep
      2 xmemcoll
      2 xalloc-oversized
      2 write-any-file
      2 wctype
      2 wait-process
      2 vsprintf-posix
      2 vasnprintf-posix
      2 utimecmp
      2 utime
      2 userspec
      2 unlinkdir
      2 unlink-busy
      2 uniwidth/u8-width
      2 unistr/u8-strncat
      2 unistr/u8-strmblen
      2 unistr/u8-next
      2 unistr/u8-mblen
      2 unistr/u8-cpy
      2 unistr/u32-strlen
      2 unistr/u32-next
      2 unistr/u32-cpy-alloc
      2 unistr/u32-cmp
      2 uninorm/u16-normalize
      2 uninorm/nfkc
      2 uninorm/base
      2 unilbrk/u8-possible-linebreaks
      2 unigbrk/uc-is-grapheme-break
      2 unictype/syntax-java-whitespace
      2 unictype/property-join-control
      2 unictype/ctype-xdigit
      2 unictype/ctype-punct
      2 unictype/ctype-lower
      2 unictype/ctype-graph
      2 unictype/ctype-digit
      2 unictype/ctype-cntrl
      2 unictype/ctype-blank
      2 unictype/ctype-alpha
      2 unictype/ctype-alnum
      2 unictype/category-test
      2 unictype/category-M
      2 unictype/category-all
      2 uniconv/u8-strconv-to-locale
      2 uniconv/u8-strconv-from-locale
      2 uniconv/u8-conv-to-enc
      2 uniconv/u8-conv-from-enc
      2 uniconv/u32-conv-to-enc
      2 uniconv/u16-conv-to-enc
      2 uniconv/u16-conv-from-enc
      2 unicase/u8-totitle
      2 unicase/u8-casefold
      2 unicase/u8-casecmp
      2 trunc
      2 trim
      2 tls
      2 timer-time
      2 threadlib
      2 sys_uio
      2 sys_file
      2 symlinkat
      2 string-desc
      2 strcspn
      2 stat-size
      2 settime
      2 secure_getenv
      2 savewd
      2 same
      2 safe-alloc
      2 relocatable-script
      2 readtokens0
      2 readtokens
      2 read
      2 rbtreehash-list
      2 pthread_sigmask
      2 propername-lite
      2 posixver
      2 posixtm
      2 posix_spawnp
      2 obstack-printf
      2 nocrash
      2 mpsort
      2 mknod
      2 mkdirat
      2 mkancesdirs
      2 mgetgroups
      2 memcmp
      2 mbszero
      2 mbsrtowcs
      2 mbschr
      2 mbscasecmp
      2 math
      2 linkedhash-list
      2 libunistring
      2 libtextstyle-optional
      2 libgmp
      2 lchown
      2 javaexec-script
      2 isnanl
      2 isinf
      2 isfinite
      2 isapipe
      2 include_next
      2 idpriv-droptemp
      2 iconv-h
      2 host-os
      2 group-member
      2 getusershell
      2 getrusage
      2 getrandom
      2 getprogname
      2 getnline
      2 getlogin_r
      2 getlogin
      2 fwriting
      2 func
      2 frexp
      2 freopen-safer
      2 fpucw
      2 float
      2 file-type
      2 file-has-acl
      2 fdl-1.3
      2 fdatasync
      2 fchownat
      2 explicit_bzero
      2 double-slash-root
      2 dirent-safer
      2 cycle-check
      2 csharpexec-script
      2 crypto/sha512-buffer
      2 crypto/sha256-buffer
      2 crypto/sha1-buffer
      2 crypto/gc-sha1
      2 crypto/gc-random
      2 crypto/gc-hmac-sha256
      2 crypto/gc-hmac-md5
      2 count-one-bits
      2 copy-file-range
      2 check-version
      2 ceil
      2 careadlinkat
      2 c32width
      2 c32isspace
      2 assure
      2 argp-version-etc
      2 areadlink
      2 access
      2 accept4
      1 xvasprintf-posix
      1 xstriconveh
      1 xstrerror
      1 xsetenv
      1 xreadlink
      1 xoset
      1 xomap
      1 xhash
      1 xgetgroups
      1 xfreopen
      1 xalignalloc
      1 windows-stat-inodes
      1 windows-spawn
      1 windows-rwlock
      1 windows-recmutex
      1 windows-once
      1 windows-mutex
      1 wgetcwd-lgpl
      1 wcsnrtombs
      1 wcsdup
      1 wchar-single
      1 vprintf-posix
      1 vma-iter
      1 vla
      1 vfprintf-posix
      1 vasnwprintf-posix
      1 uptime
      1 uniwidth/u32-width
      1 uniwidth/u32-strwidth
      1 uniwidth/u16-width
      1 uniwidth/u16-strwidth
      1 uniwidth/base
      1 uniwbrk/wordbreak-property
      1 uniwbrk/ulc-wordbreaks
      1 uniwbrk/u8-wordbreaks
      1 uniwbrk/u32-wordbreaks
      1 uniwbrk/u16-wordbreaks
      1 uniwbrk/base
      1 unistr/u8-strtok
      1 unistr/u8-strstr
      1 unistr/u8-strspn
      1 unistr/u8-strrchr
      1 unistr/u8-strpbrk
      1 unistr/u8-strnlen
      1 unistr/u8-strncpy
      1 unistr/u8-strncmp
      1 unistr/u8-strdup
      1 unistr/u8-strcspn
      1 unistr/u8-strcpy
      1 unistr/u8-strcoll
      1 unistr/u8-strcmp
      1 unistr/u8-strchr
      1 unistr/u8-strcat
      1 unistr/u8-stpncpy
      1 unistr/u8-stpcpy
      1 unistr/u8-startswith
      1 unistr/u8-set
      1 unistr/u8-prev
      1 unistr/u8-pcpy
      1 unistr/u8-move
      1 unistr/u8-mbtouc-unsafe
      1 unistr/u8-endswith
      1 unistr/u8-cpy-alloc
      1 unistr/u8-cmp2
      1 unistr/u8-cmp
      1 unistr/u8-chr
      1 unistr/u32-uctomb
      1 unistr/u32-to-u16
      1 unistr/u32-strtok
      1 unistr/u32-strstr
      1 unistr/u32-strspn
      1 unistr/u32-strrchr
      1 unistr/u32-strpbrk
      1 unistr/u32-strnlen
      1 unistr/u32-strncpy
      1 unistr/u32-strncmp
      1 unistr/u32-strncat
      1 unistr/u32-strmbtouc
      1 unistr/u32-strmblen
      1 unistr/u32-strdup
      1 unistr/u32-strcspn
      1 unistr/u32-strcpy
      1 unistr/u32-strcoll
      1 unistr/u32-strcmp
      1 unistr/u32-strchr
      1 unistr/u32-strcat
      1 unistr/u32-stpncpy
      1 unistr/u32-stpcpy
      1 unistr/u32-startswith
      1 unistr/u32-set
      1 unistr/u32-prev
      1 unistr/u32-pcpy
      1 unistr/u32-move
      1 unistr/u32-mbtouc-unsafe
      1 unistr/u32-mbtoucr
      1 unistr/u32-mbtouc
      1 unistr/u32-mbsnlen
      1 unistr/u32-mblen
      1 unistr/u32-endswith
      1 unistr/u32-cpy
      1 unistr/u32-cmp2
      1 unistr/u32-chr
      1 unistr/u32-check
      1 unistr/u16-uctomb
      1 unistr/u16-to-u32
      1 unistr/u16-strtok
      1 unistr/u16-strstr
      1 unistr/u16-strspn
      1 unistr/u16-strrchr
      1 unistr/u16-strpbrk
      1 unistr/u16-strnlen
      1 unistr/u16-strncpy
      1 unistr/u16-strncmp
      1 unistr/u16-strncat
      1 unistr/u16-strmbtouc
      1 unistr/u16-strmblen
      1 unistr/u16-strlen
      1 unistr/u16-strdup
      1 unistr/u16-strcspn
      1 unistr/u16-strcpy
      1 unistr/u16-strcoll
      1 unistr/u16-strcmp
      1 unistr/u16-strchr
      1 unistr/u16-strcat
      1 unistr/u16-stpncpy
      1 unistr/u16-stpcpy
      1 unistr/u16-startswith
      1 unistr/u16-set
      1 unistr/u16-prev
      1 unistr/u16-pcpy
      1 unistr/u16-next
      1 unistr/u16-move
      1 unistr/u16-mbtouc-unsafe
      1 unistr/u16-mbtoucr
      1 unistr/u16-mbsnlen
      1 unistr/u16-mblen
      1 unistr/u16-endswith
      1 unistr/u16-cpy-alloc
      1 unistr/u16-cpy
      1 unistr/u16-cmp2
      1 unistr/u16-cmp
      1 unistr/u16-chr
      1 unistr/u16-check
      1 unistr/base
      1 unistdio/ulc-vsprintf
      1 unistdio/ulc-vsnprintf
      1 unistdio/ulc-vfprintf
      1 unistdio/ulc-vasprintf
      1 unistdio/ulc-vasnprintf
      1 unistdio/ulc-sprintf
      1 unistdio/ulc-snprintf
      1 unistdio/ulc-fprintf
      1 unistdio/ulc-asprintf
      1 unistdio/ulc-asnprintf
      1 unistdio/u8-vsprintf
      1 unistdio/u8-vsnprintf
      1 unistdio/u8-vasprintf
      1 unistdio/u8-vasnprintf
      1 unistdio/u8-u8-vsprintf
      1 unistdio/u8-u8-vsnprintf
      1 unistdio/u8-u8-vasprintf
      1 unistdio/u8-u8-vasnprintf
      1 unistdio/u8-u8-sprintf
      1 unistdio/u8-u8-snprintf
      1 unistdio/u8-u8-asprintf
      1 unistdio/u8-u8-asnprintf
      1 unistdio/u8-sprintf
      1 unistdio/u8-snprintf
      1 unistdio/u8-asprintf
      1 unistdio/u8-asnprintf
      1 unistdio/u32-vsprintf
      1 unistdio/u32-vsnprintf
      1 unistdio/u32-vasprintf
      1 unistdio/u32-vasnprintf
      1 unistdio/u32-u32-vsprintf
      1 unistdio/u32-u32-vsnprintf
      1 unistdio/u32-u32-vasprintf
      1 unistdio/u32-u32-vasnprintf
      1 unistdio/u32-u32-sprintf
      1 unistdio/u32-u32-snprintf
      1 unistdio/u32-u32-asprintf
      1 unistdio/u32-u32-asnprintf
      1 unistdio/u32-sprintf
      1 unistdio/u32-snprintf
      1 unistdio/u32-asprintf
      1 unistdio/u32-asnprintf
      1 unistdio/u16-vsprintf
      1 unistdio/u16-vsnprintf
      1 unistdio/u16-vasprintf
      1 unistdio/u16-vasnprintf
      1 unistdio/u16-u16-vsprintf
      1 unistdio/u16-u16-vsnprintf
      1 unistdio/u16-u16-vasprintf
      1 unistdio/u16-u16-vasnprintf
      1 unistdio/u16-u16-sprintf
      1 unistdio/u16-u16-snprintf
      1 unistdio/u16-u16-asprintf
      1 unistdio/u16-u16-asnprintf
      1 unistdio/u16-sprintf
      1 unistdio/u16-snprintf
      1 unistdio/u16-asprintf
      1 unistdio/u16-asnprintf
      1 unistdio/base
      1 uninorm/u8-normxfrm
      1 uninorm/u8-normcoll
      1 uninorm/u8-normcmp
      1 uninorm/u32-normxfrm
      1 uninorm/u32-normcoll
      1 uninorm/u32-normcmp
      1 uninorm/u16-normxfrm
      1 uninorm/u16-normcoll
      1 uninorm/u16-normcmp
      1 uninorm/nfd
      1 uninorm/filter
      1 uninorm/decomposition
      1 uninorm/composition
      1 uninorm/canonical-decomposition
      1 uniname/base
      1 unimetadata/u-version
      1 unimetadata/base
      1 unilbrk/ulc-possible-linebreaks
      1 unilbrk/u8-width-linebreaks
      1 unilbrk/u32-width-linebreaks
      1 unilbrk/u32-possible-linebreaks
      1 unilbrk/u16-width-linebreaks
      1 unilbrk/u16-possible-linebreaks
      1 unilbrk/base
      1 unigbrk/ulc-grapheme-breaks
      1 unigbrk/uc-grapheme-breaks
      1 unigbrk/uc-gbrk-prop
      1 unigbrk/u8-grapheme-prev
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      1 uniconv/u32-strconv-from-locale
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