toolchain/eglibc/config/Config.in

   1 config EGLIBC_OPTION_EGLIBC_ADVANCED_INET6
   2         bool "IPv6 Advanced Sockets API support (RFC3542)"
   3         default y
   4         select EGLIBC_OPTION_EGLIBC_INET
   5         help
   6           This option group includes the functions specified by RFC 3542,
   7           "Advanced Sockets Application Program Interface (API) for
   8           IPv6".
   9
  10           This option group includes the following functions:
  11
  12                 inet6_opt_append
  13                 inet6_opt_find
  14                 inet6_opt_finish
  15                 inet6_opt_get_val
  16                 inet6_opt_init
  17                 inet6_option_alloc
  18                 inet6_option_append
  19                 inet6_option_find
  20                 inet6_option_init
  21                 inet6_option_next
  22                 inet6_option_space
  23                 inet6_opt_next
  24                 inet6_opt_set_val
  25                 inet6_rth_add
  26                 inet6_rth_getaddr
  27                 inet6_rth_init
  28                 inet6_rth_reverse
  29                 inet6_rth_segments
  30                 inet6_rth_space
  31
  32
  33 config EGLIBC_OPTION_EGLIBC_BACKTRACE
  34         bool "Functions for producing backtraces"
  35         default y
  36         help
  37           This option group includes functions for producing a list of
  38           the function calls that are currently active in a thread, from
  39           within the thread itself.  These functions are often used
  40           within signal handlers, to produce diagnostic output.
  41
  42           This option group includes the following functions:
  43
  44                 backtrace
  45                 backtrace_symbols
  46                 backtrace_symbols_fd
  47
  48
  49 config EGLIBC_OPTION_EGLIBC_BIG_MACROS
  50         bool "Use extensive inline code"
  51         default y
  52         depends EGLIBC_VERSION_2_11
  53         help
  54           This option group specifies whether certain pieces of code
  55           should be inlined to achieve maximum speed.  If this option
  56           group is not selected, function calls will be used instead,
  57           hence reducing the library footprint.
  58
  59
  60 config EGLIBC_OPTION_EGLIBC_BSD
  61         bool "BSD-specific functions, and their compatibility stubs"
  62         default y
  63         help
  64           This option group includes functions specific to BSD kernels.
  65           A number of these functions have stub versions that are also
  66           included in libraries built for non-BSD systems for
  67           compatibility.
  68
  69           This option group includes the following functions:
  70
  71                 chflags
  72                 fchflags
  73                 lchmod
  74                 revoke
  75                 setlogin
  76
  77
  78 config EGLIBC_OPTION_EGLIBC_CXX_TESTS
  79         bool "Tests that link against the standard C++ library."
  80         default y
  81         select EGLIBC_OPTION_POSIX_WIDE_CHAR_DEVICE_IO
  82         select EGLIBC_OPTION_EGLIBC_LIBM
  83         help
  84           This option group does not include any C library functions;
  85           instead, it controls which EGLIBC tests an ordinary 'make
  86           tests' runs.  With this group disabled, tests that would
  87           normally link against the standard C++ library are not
  88           run.
  89
  90           The standard C++ library depends on the math library 'libm' and
  91           the wide character I/O functions included in EGLIBC.  If those
  92           option groups are disabled, this test must also be disabled.
  93
  94
  95 config EGLIBC_OPTION_EGLIBC_CATGETS
  96         bool "Functions for accessing message catalogs"
  97         default y
  98         select EGLIBC_OPTION_EGLIBC_LOCALE_CODE
  99         help
 100           This option group includes functions for accessing message
 101           catalogs: catopen, catclose, and catgets.
 102
 103           This option group depends on the EGLIBC_OPTION_EGLIBC_LOCALE_CODE
 104           option group; if you disable that, you must also disable this.
 105
 106
 107 config EGLIBC_OPTION_EGLIBC_CHARSETS
 108         bool "iconv/gconv character set conversion libraries"
 109         default y
 110         help
 111
 112           This option group includes support for character sets other
 113           than ASCII (ANSI_X3.4-1968) and Unicode and ISO-10646 in their
 114           various encodings.  This affects both the character sets
 115           supported by the wide and multibyte character functions, and
 116           those supported by the 'iconv' functions.
 117
 118           With this option group disabled, EGLIBC supports only the
 119           following character sets:
 120
 121                 ANSI_X3.4         - ASCII
 122                 ANSI_X3.4-1968
 123                 ANSI_X3.4-1986
 124                 ASCII
 125                 CP367
 126                 CSASCII
 127                 IBM367
 128                 ISO-IR-6
 129                 ISO646-US
 130                 ISO_646.IRV:1991
 131                 OSF00010020
 132                 US
 133                 US-ASCII
 134
 135                 10646-1:1993      - ISO 10646, in big-endian UCS4 form
 136                 10646-1:1993/UCS4
 137                 CSUCS4
 138                 ISO-10646
 139                 ISO-10646/UCS4
 140                 OSF00010104
 141                 OSF00010105
 142                 OSF00010106
 143                 UCS-4
 144                 UCS-4BE
 145                 UCS4
 146
 147                 UCS-4LE           - ISO 10646, in little-endian UCS4 form
 148
 149                 ISO-10646/UTF-8   - ISO 10646, in UTF-8 form
 150                 ISO-10646/UTF8
 151                 ISO-IR-193
 152                 OSF05010001
 153                 UTF-8
 154                 UTF8
 155
 156                 ISO-10646/UCS2    - ISO 10646, in target-endian UCS2 form
 157                 OSF00010100
 158                 OSF00010101
 159                 OSF00010102
 160                 UCS-2
 161                 UCS2
 162
 163                 UCS-2BE           - ISO 10646, in big-endian UCS2 form
 164                 UNICODEBIG
 165
 166                 UCS-2LE           - ISO 10646, in little-endian UCS2 form
 167                 UNICODELITTLE
 168
 169                 WCHAR_T           - EGLIBC's internal form (target-endian,
 170                                                         32-bit ISO 10646)
 171
 172
 173 config EGLIBC_OPTION_EGLIBC_DB_ALIASES
 174         bool "Functions for accessing the mail aliases database"
 175         default y
 176         help
 177           This option group includes functions for looking up mail
 178           aliases in '/etc/aliases' or using nsswitch.  It includes the
 179           following functions:
 180
 181                 endaliasent
 182                 getaliasbyname
 183                 getaliasbyname_r
 184                 getaliasent
 185                 getaliasent_r
 186                 setaliasent
 187
 188           When this option group is disabled, the NSS service libraries
 189           also lack support for querying their mail alias tables.
 190
 191
 192 config EGLIBC_OPTION_EGLIBC_ENVZ
 193         bool "Functions for handling envz-style environment vectors."
 194         default y
 195         help
 196           This option group contains functions for creating and operating
 197           on envz vectors.  An "envz vector" is a vector of strings in a
 198           contiguous block of memory, where each element is a name-value
 199           pair, and elements are separated from their neighbors by null
 200           characters.
 201
 202           This option group includes the following functions:
 203
 204                 envz_add        envz_merge
 205                 envz_entry      envz_remove
 206                 envz_get        envz_strip
 207
 208
 209 config EGLIBC_OPTION_EGLIBC_FCVT
 210         bool "Functions for converting floating-point numbers to strings"
 211         default y
 212         depends EGLIBC_VERSION_2_10 || EGLIBC_VERSION_2_11
 213         help
 214           This option group includes functions for converting
 215           floating-point numbers to strings.
 216
 217           This option group includes the following functions:
 218
 219                 ecvt           qecvt
 220                 ecvt_r         qecvt_r
 221                 fcvt           qfcvt
 222                 fcvt_r         qfcvt_r
 223                 gcvt           qgcvt
 224
 225
 226 config EGLIBC_OPTION_EGLIBC_FMTMSG
 227         bool "Functions for formatting messages"
 228         default y
 229         depends EGLIBC_VERSION_2_10 || EGLIBC_VERSION_2_11
 230         help
 231           This option group includes the following functions:
 232
 233                 addseverity    fmtmsg
 234
 235
 236 config EGLIBC_OPTION_EGLIBC_FSTAB
 237         bool "Access functions for 'fstab'"
 238         default y
 239         help
 240           This option group includes functions for reading the mount
 241           point specification table, '/etc/fstab'.  These functions are
 242           not included in the POSIX standard, which provides the
 243           'getmntent' family of functions instead.
 244
 245           This option group includes the following functions:
 246
 247                 endfsent       getfsspec
 248                 getfsent       setfsent
 249                 getfsfile
 250
 251
 252 config EGLIBC_OPTION_EGLIBC_FTRAVERSE
 253         bool "Functions for traversing file hierarchies"
 254         default y
 255         depends EGLIBC_VERSION_2_10 || EGLIBC_VERSION_2_11
 256         help
 257           This option group includes functions for traversing file
 258           UNIX file hierachies.
 259
 260           This option group includes the following functions:
 261
 262                 fts_open       ftw
 263                 fts_read       nftw
 264                 fts_children   ftw64
 265                 fts_set        nftw64
 266                 fts_close
 267
 268
 269 config EGLIBC_OPTION_EGLIBC_GETLOGIN
 270         bool "The getlogin function"
 271         default y
 272         select EGLIBC_OPTION_EGLIBC_UTMP
 273         help
 274           This function group includes the 'getlogin' and 'getlogin_r'
 275           functions, which return the user name associated by the login
 276           activity with the current process's controlling terminal.
 277
 278           With this option group disabled, the 'glob' function will not
 279           fall back on 'getlogin' to find the user's login name for tilde
 280           expansion when the 'HOME' environment variable is not set.
 281
 282
 283 config EGLIBC_OPTION_EGLIBC_INET
 284         bool "Networking support"
 285         default y
 286         help
 287           This option group includes networking-specific functions and
 288           data.  With EGLIBC_OPTION_EGLIBC_INET disabled, the EGLIBC
 289           installation and API changes as follows:
 290
 291           - The following libraries are not installed:
 292
 293                 libanl
 294                 libnsl
 295                 libnss_compat
 296                 libnss_dns
 297                 libnss_hesiod
 298                 libnss_nis
 299                 libnss_nisplus
 300                 libresolv
 301
 302           - The following functions and variables are omitted from libc:
 303
 304                 authdes_create           hstrerror              svc_fdset
 305                 authdes_getucred         htonl                  svc_getreq
 306                 authdes_pk_create        htons                  svc_getreq_common
 307                 authnone_create          if_freenameindex       svc_getreq_poll
 308                 authunix_create          if_indextoname         svc_getreqset
 309                 authunix_create_default  if_nameindex           svc_max_pollfd
 310                 bindresvport             if_nametoindex         svc_pollfd
 311                 callrpc                  in6addr_any            svcraw_create
 312                 cbc_crypt                in6addr_loopback       svc_register
 313                 clnt_broadcast           inet6_opt_append       svc_run
 314                 clnt_create              inet6_opt_find         svc_sendreply
 315                 clnt_pcreateerror        inet6_opt_finish       svctcp_create
 316                 clnt_perrno              inet6_opt_get_val      svcudp_bufcreate
 317                 clnt_perror              inet6_opt_init         svcudp_create
 318                 clntraw_create           inet6_option_alloc     svcudp_enablecache
 319                 clnt_spcreateerror       inet6_option_append    svcunix_create
 320                 clnt_sperrno             inet6_option_find      svcunixfd_create
 321                 clnt_sperror             inet6_option_init      svc_unregister
 322                 clnttcp_create           inet6_option_next      user2netname
 323                 clntudp_bufcreate        inet6_option_space     xdecrypt
 324                 clntudp_create           inet6_opt_next         xdr_accepted_reply
 325                 clntunix_create          inet6_opt_set_val      xdr_array
 326                 des_setparity            inet6_rth_add          xdr_authdes_cred
 327                 ecb_crypt                inet6_rth_getaddr      xdr_authdes_verf
 328                 endaliasent              inet6_rth_init         xdr_authunix_parms
 329                 endhostent               inet6_rth_reverse      xdr_bool
 330                 endnetent                inet6_rth_segments     xdr_bytes
 331                 endnetgrent              inet6_rth_space        xdr_callhdr
 332                 endprotoent              inet_addr              xdr_callmsg
 333                 endrpcent                inet_aton              xdr_char
 334                 endservent               inet_lnaof             xdr_cryptkeyarg
 335                 ether_aton               inet_makeaddr          xdr_cryptkeyarg2
 336                 ether_aton_r             inet_netof             xdr_cryptkeyres
 337                 ether_hostton            inet_network           xdr_des_block
 338                 ether_line               inet_nsap_addr         xdr_double
 339                 ether_ntoa               inet_nsap_ntoa         xdr_enum
 340                 ether_ntoa_r             inet_ntoa              xdr_float
 341                 ether_ntohost            inet_ntop              xdr_free
 342                 freeaddrinfo             inet_pton              xdr_getcredres
 343                 freeifaddrs              innetgr                xdr_hyper
 344                 gai_strerror             iruserok               xdr_int
 345                 getaddrinfo              iruserok_af            xdr_int16_t
 346                 getaliasbyname           key_decryptsession     xdr_int32_t
 347                 getaliasbyname_r         key_decryptsession_pk  xdr_int64_t
 348                 getaliasent              key_encryptsession     xdr_int8_t
 349                 getaliasent_r            key_encryptsession_pk  xdr_keybuf
 350                 gethostbyaddr            key_gendes             xdr_key_netstarg
 351                 gethostbyaddr_r          key_get_conv           xdr_key_netstres
 352                 gethostbyname            key_secretkey_is_set   xdr_keystatus
 353                 gethostbyname2           key_setnet             xdr_long
 354                 gethostbyname2_r         key_setsecret          xdr_longlong_t
 355                 gethostbyname_r          netname2host           xdrmem_create
 356                 gethostent               netname2user           xdr_netnamestr
 357                 gethostent_r             ntohl                  xdr_netobj
 358                 getifaddrs               ntohs                  xdr_opaque
 359                 getipv4sourcefilter      passwd2des             xdr_opaque_auth
 360                 get_myaddress            pmap_getmaps           xdr_pmap
 361                 getnameinfo              pmap_getport           xdr_pmaplist
 362                 getnetbyaddr             pmap_rmtcall           xdr_pointer
 363                 getnetbyaddr_r           pmap_set               xdr_quad_t
 364                 getnetbyname             pmap_unset             xdrrec_create
 365                 getnetbyname_r           rcmd                   xdrrec_endofrecord
 366                 getnetent                rcmd_af                xdrrec_eof
 367                 getnetent_r              registerrpc            xdrrec_skiprecord
 368                 getnetgrent              res_init               xdr_reference
 369                 getnetgrent_r            rexec                  xdr_rejected_reply
 370                 getnetname               rexec_af               xdr_replymsg
 371                 getprotobyname           rexecoptions           xdr_rmtcall_args
 372                 getprotobyname_r         rpc_createerr          xdr_rmtcallres
 373                 getprotobynumber         rresvport              xdr_short
 374                 getprotobynumber_r       rresvport_af           xdr_sizeof
 375                 getprotoent              rtime                  xdrstdio_create
 376                 getprotoent_r            ruserok                xdr_string
 377                 getpublickey             ruserok_af             xdr_u_char
 378                 getrpcbyname             ruserpass              xdr_u_hyper
 379                 getrpcbyname_r           setaliasent            xdr_u_int
 380                 getrpcbynumber           sethostent             xdr_uint16_t
 381                 getrpcbynumber_r         setipv4sourcefilter    xdr_uint32_t
 382                 getrpcent                setnetent              xdr_uint64_t
 383                 getrpcent_r              setnetgrent            xdr_uint8_t
 384                 getrpcport               setprotoent            xdr_u_long
 385                 getsecretkey             setrpcent              xdr_u_longlong_t
 386                 getservbyname            setservent             xdr_union
 387                 getservbyname_r          setsourcefilter        xdr_unixcred
 388                 getservbyport            svcauthdes_stats       xdr_u_quad_t
 389                 getservbyport_r          svcerr_auth            xdr_u_short
 390                 getservent               svcerr_decode          xdr_vector
 391                 getservent_r             svcerr_noproc          xdr_void
 392                 getsourcefilter          svcerr_noprog          xdr_wrapstring
 393                 h_errlist                svcerr_progvers        xencrypt
 394                 h_errno                  svcerr_systemerr       xprt_register
 395                 herror                   svcerr_weakauth        xprt_unregister
 396                 h_nerr                   svc_exit
 397                 host2netname             svcfd_create
 398
 399           - The rpcgen, nscd, and rpcinfo commands are not installed.
 400
 401           - The 'rpc' file (a text file listing RPC services) is not installed.
 402
 403           Socket-related system calls do not fall in this option group,
 404           because many are also used for other inter-process
 405           communication mechanisms.  For example, the 'syslog' routines
 406           use Unix-domain sockets to communicate with the syslog daemon;
 407           syslog is valuable in non-networked contexts.
 408
 409
 410 config EGLIBC_OPTION_EGLIBC_LIBM
 411         bool "libm (math library)"
 412         default y
 413         help
 414           This option group includes the 'libm' library, containing
 415           mathematical functions.  If this option group is omitted, then
 416           an EGLIBC installation does not include shared or unshared versions
 417           of the math library.
 418
 419           Note that this does not remove all floating-point related
 420           functionality from EGLIBC; for example, 'printf' and 'scanf'
 421           can still print and read floating-point values with this option
 422           group disabled.
 423
 424           Note that the ISO Standard C++ library 'libstdc++' depends on
 425           EGLIBC's math library 'libm'.  If you disable this option
 426           group, you will not be able to build 'libstdc++' against the
 427           resulting EGLIBC installation.
 428
 429
 430 config EGLIBC_OPTION_EGLIBC_LOCALES
 431         bool "Locale definitions"
 432         default y
 433         help
 434           This option group includes all locale definitions other than
 435           that for the "C" locale.  If this option group is omitted, then
 436           only the "C" locale is supported.
 437
 438
 439 config EGLIBC_OPTION_EGLIBC_LOCALE_CODE
 440         bool "Locale functions"
 441         default y
 442         select EGLIBC_OPTION_POSIX_C_LANG_WIDE_CHAR if EGLIBC_VERSION_2_8 || EGLIBC_VERSION_2_9 || EGLIBC_VERSION_2_10 || EGLIBC_VERSION_2_11
 443         help
 444           This option group includes locale support functions, programs,
 445           and libraries.  With EGLIBC_OPTION_EGLIBC_LOCALE_CODE disabled,
 446           EGLIBC supports only the 'C' locale (also known as 'POSIX'),
 447           and ignores the settings of the 'LANG' and 'LC_*' environment
 448           variables.
 449
 450           With EGLIBC_OPTION_EGLIBC_LOCALE_CODE disabled, the following
 451           functions are omitted from libc:
 452
 453                 duplocale   localeconv  nl_langinfo    rpmatch  strfmon_l
 454                 freelocale  newlocale   nl_langinfo_l  strfmon  uselocale
 455
 456           Furthermore, only the LC_CTYPE and LC_TIME categories of the
 457           standard "C" locale are available.
 458
 459           The EGLIBC_OPTION_EGLIBC_CATGETS option group depends on this option
 460           group; if you disable EGLIBC_OPTION_EGLIBC_LOCALE_CODE, you must also
 461           disable EGLIBC_OPTION_EGLIBC_CATGETS.
 462
 463
 464 config EGLIBC_OPTION_EGLIBC_MEMUSAGE
 465         bool "Memory profiling library"
 466         default y
 467         depends EGLIBC_VERSION_2_11
 468         help
 469           This option group includes the `libmemusage' library and
 470           the `memusage' and `memusagestat' utilities.
 471           These components provide memory profiling functions.
 472
 473           EGLIBC_OPTION_EGLIBC_MEMUSAGE_DEFAULT_BUFFER_SIZE
 474
 475           Libmemusage library buffers the profiling data in memory
 476           before writing it out to disk.  By default, the library
 477           allocates 1.5M buffer, which can be substantial for some
 478           systems.  EGLIBC_OPTION_EGLIBC_MEMUSAGE_DEFAULT_BUFFER_SIZE option
 479           allows to change the default buffer size.  It specifies
 480           the number of entries the buffer should have.
 481           On most architectures one buffer entry amounts to 48 bytes,
 482           so setting this option to the value of 512 will reduce the size of
 483           the memory buffer to 24K.
 484
 485
 486 config EGLIBC_OPTION_EGLIBC_NIS
 487         bool "Support for NIS, NIS+, and the special 'compat' services."
 488         default y
 489         select EGLIBC_OPTION_EGLIBC_INET
 490         select EGLIBC_OPTION_EGLIBC_SUNRPC
 491         help
 492           This option group includes the NIS, NIS+, and 'compat' Name
 493           Service Switch service libraries.  When it is disabled, those
 494           services libraries are not installed; you should remove any
 495           references to them from your 'nsswitch.conf' file.
 496
 497           This option group depends on the EGLIBC_OPTION_EGLIBC_INET option
 498           group; you must enable that to enable this option group.
 499
 500
 501 config EGLIBC_OPTION_EGLIBC_NSSWITCH
 502         bool "Name service switch (nsswitch) support"
 503         default y
 504         select EGLIBC_OPTION_EGLIBC_INET
 505         help
 506
 507           This option group includes support for the 'nsswitch' facility.
 508           With this option group enabled, all EGLIBC functions for
 509           accessing various system databases (passwords and groups;
 510           networking; aliases; public keys; and so on) consult the
 511           '/etc/nsswitch.conf' configuration file to decide how to handle
 512           queries.
 513
 514           With this option group disabled, EGLIBC uses a fixed list of
 515           services to satisfy queries on each database, as requested by
 516           configuration files specified when EGLIBC is built.  Your
 517           'option-groups.config' file must set the following two
 518           variables:
 519
 520           EGLIBC_OPTION_EGLIBC_NSSWITCH_FIXED_CONFIG
 521
 522                 Set this to the name of a file whose contents observe the
 523                 same syntax as an ordinary '/etc/nsswitch.conf' file.  The
 524                 EGLIBC build process parses this file just as EGLIBC would
 525                 at run time if EGLIBC_NSSWITCH were enabled, and
 526                 produces a C library that uses the nsswitch service
 527                 libraries to search for database entries as this file
 528                 specifies, instead of consulting '/etc/nsswitch.conf' at run
 529                 time.
 530
 531                 This should be an absolute filename.  The EGLIBC build
 532                 process may use it from several different working
 533                 directories.  It may include references to Makefile
 534                 variables like 'common-objpfx' (the top of the build tree,
 535                 with a trailing slash), or '..' (the top of the source tree,
 536                 with a trailing slash).
 537
 538                 The EGLIBC source tree includes a sample configuration file
 539                 named 'nss/fixed-nsswitch.conf'; for simple configurations,
 540                 you will probably want to delete references to databases not
 541                 needed on your system.
 542
 543           EGLIBC_OPTION_EGLIBC_NSSWITCH_FIXED_FUNCTIONS
 544
 545                 The EGLIBC build process uses this file to decide which
 546                 functions to make available from which service libraries.
 547                 The file 'nss/fixed-nsswitch.functions' serves as a sample
 548                 configuration file for this setting, and explains its syntax
 549                 and meaning in more detail.
 550
 551                 This should be an absolute file name.  The EGLIBC build
 552                 process may use it from several different working
 553                 directories.  It may include references to Makefile
 554                 variables like 'common-objpfx' (the top of the build tree,
 555                 with a trailing slash), or '..' (the top of the source tree,
 556                 with a trailing slash).
 557
 558                 Be sure to mention each function in each service you wish to
 559                 use.  If you do not mention a service's function here, the
 560                 EGLIBC database access functions will not find it, even if
 561                 it is listed in the EGLIBC_OPTION_EGLIBC_NSSWITCH_FIXED_CONFIG
 562                 file.
 563
 564           In this arrangement, EGLIBC will not use the 'dlopen' and
 565           'dlsym' functions to find database access functions.  Instead,
 566           libc hard-codes references to the service libraries' database
 567           access functions.  You must explicitly link your program
 568           against the name service libraries (those whose names start
 569           with 'libnss_', in the sysroot's '/lib' directory) whose
 570           functions you intend to use.  This arrangement helps
 571           system-wide static analysis tools decide which functions a
 572           system actually uses.
 573
 574           Note that some nsswitch service libraries require other option
 575           groups to be enabled; for example, the EGLIBC_OPTION_EGLIBC_INET
 576           option group must be enabled to use the 'libnss_dns.so.2'
 577           service library, which uses the Domain Name System network
 578           protocol to answer queries.
 579
 580
 581 config EGLIBC_OPTION_EGLIBC_RCMD
 582         bool "Support for 'rcmd' and related library functions"
 583         default y
 584         select EGLIBC_OPTION_EGLIBC_INET
 585         help
 586           This option group includes functions for running commands on
 587           remote machines via the 'rsh' protocol, and doing authentication
 588           related to those functions.  This also includes functions that
 589           use the 'rexec' protocol.
 590
 591           This option group includes the following functions:
 592
 593                 rcmd            ruserok
 594                 rcmd_af         ruserok_af
 595                 rexec           iruserok
 596                 rexec_af        iruserok_af
 597                 rresvport       ruserpass
 598                 rresvport_af
 599
 600
 601 config EGLIBC_OPTION_EGLIBC_SPAWN
 602         bool "Support for POSIX posix_spawn functions"
 603         default y
 604         help
 605           This option group includes the POSIX functions for executing
 606           programs in child processes without using 'fork' or 'vfork'.
 607
 608           This option group includes the following functions:
 609
 610                 posix_spawn
 611                 posix_spawnattr_destroy
 612                 posix_spawnattr_getflags
 613                 posix_spawnattr_getpgroup
 614                 posix_spawnattr_getschedparam
 615                 posix_spawnattr_getschedpolicy
 616                 posix_spawnattr_getsigdefault
 617                 posix_spawnattr_getsigmask
 618                 posix_spawnattr_init
 619                 posix_spawnattr_setflags
 620                 posix_spawnattr_setpgroup
 621                 posix_spawnattr_setschedparam
 622                 posix_spawnattr_setschedpolicy
 623                 posix_spawnattr_setsigdefault
 624                 posix_spawnattr_setsigmask
 625                 posix_spawn_file_actions_addclose
 626                 posix_spawn_file_actions_adddup2
 627                 posix_spawn_file_actions_addopen
 628                 posix_spawn_file_actions_destroy
 629                 posix_spawn_file_actions_init
 630                 posix_spawnp
 631
 632           This option group also provides the ability for the iconv,
 633           localedef, and locale programs to operate transparently on
 634           compressed charset definitions.  When this option group is
 635           disabled, those programs will only operate on uncompressed
 636           charmap files.
 637
 638
 639 config EGLIBC_OPTION_EGLIBC_STREAMS
 640         bool "Support for accessing STREAMS."
 641         default y
 642         help
 643           This option group includes functions for reading and writing
 644           messages to and from STREAMS.  The STREAMS interface provides a
 645           uniform mechanism for implementing networking services and other
 646           character-based I/O.  (STREAMS are not to be confused with
 647           <stdio.h> FILE objects, also called 'streams'.)
 648
 649           This option group includes the following functions:
 650
 651                 getmsg          putpmsg
 652                 getpmsg         fattach
 653                 isastream       fdetach
 654                 putmsg
 655
 656
 657 config EGLIBC_OPTION_EGLIBC_SUNRPC
 658         bool "Support for the Sun 'RPC' protocol."
 659         default y
 660         select EGLIBC_OPTION_EGLIBC_INET
 661         help
 662           This option group includes support for the Sun RPC protocols,
 663           including the 'rpcgen' and 'rpcinfo' programs.
 664
 665
 666 config EGLIBC_OPTION_EGLIBC_UTMP
 667         bool "Older access functions for 'utmp' login records"
 668         default y
 669         help
 670           This option group includes the older 'utent' family of
 671           functions for accessing user login records in the 'utmp' file.
 672           POSIX omits these functions in favor of the 'utxent' family,
 673           and they are obsolete on systems other than Linux.
 674
 675           This option group includes the following functions:
 676
 677                 endutent
 678                 getutent
 679                 getutent_r
 680                 getutid
 681                 getutid_r
 682                 getutline
 683                 getutline_r
 684                 logwtmp
 685                 pututline
 686                 setutent
 687                 updwtmp
 688                 utmpname
 689
 690           This option group includes the following libraries:
 691
 692                 libutil.so (and libutil.a)
 693
 694
 695 config EGLIBC_OPTION_EGLIBC_UTMPX
 696         bool "POSIX access functions for 'utmp' login records"
 697         default y
 698         select EGLIBC_OPTION_EGLIBC_UTMP
 699         help
 700           This option group includes the POSIX functions for reading and
 701           writing user login records in the 'utmp' file (usually
 702           '/var/run/utmp').  The POSIX functions operate on 'struct
 703           utmpx' structures, as opposed to the family of older 'utent'
 704           functions, which operate on 'struct utmp' structures.
 705
 706           This option group includes the following functions:
 707
 708                 endutxent
 709                 getutmp
 710                 getutmpx
 711                 getutxent
 712                 getutxid
 713                 getutxline
 714                 pututxline
 715                 setutxent
 716                 updwtmpx
 717                 utmpxname
 718
 719
 720 config EGLIBC_OPTION_EGLIBC_WORDEXP
 721         bool "Shell-style word expansion"
 722         default y
 723         help
 724           This option group includes the 'wordexp' function for
 725           performing word expansion in the manner of the shell, and the
 726           accompanying 'wordfree' function.
 727
 728
 729 config EGLIBC_OPTION_POSIX_C_LANG_WIDE_CHAR
 730         bool "ISO C library wide character functions, excluding I/O"
 731         default y
 732         depends EGLIBC_VERSION_2_8 || EGLIBC_VERSION_2_9 || EGLIBC_VERSION_2_10 || EGLIBC_VERSION_2_11
 733         help
 734           This option group includes the functions defined by the ISO C
 735           standard for working with wide and multibyte characters in
 736           memory.  Functions for reading and writing wide and multibyte
 737           characters from and to files call in the
 738           EGLIBC_OPTION_POSIX_WIDE_CHAR_DEVICE_IO option group.
 739
 740           This option group includes the following functions:
 741
 742                 btowc         mbsinit       wcscspn       wcstoll
 743                 iswalnum      mbsrtowcs     wcsftime      wcstombs
 744                 iswalpha      mbstowcs      wcslen        wcstoul
 745                 iswblank      mbtowc        wcsncat       wcstoull
 746                 iswcntrl      swprintf      wcsncmp       wcstoumax
 747                 iswctype      swscanf       wcsncpy       wcsxfrm
 748                 iswdigit      towctrans     wcspbrk       wctob
 749                 iswgraph      towlower      wcsrchr       wctomb
 750                 iswlower      towupper      wcsrtombs     wctrans
 751                 iswprint      vswprintf     wcsspn        wctype
 752                 iswpunct      vswscanf      wcsstr        wmemchr
 753                 iswspace      wcrtomb       wcstod        wmemcmp
 754                 iswupper      wcscat        wcstof        wmemcpy
 755                 iswxdigit     wcschr        wcstoimax     wmemmove
 756                 mblen         wcscmp        wcstok        wmemset
 757                 mbrlen        wcscoll       wcstol
 758                 mbrtowc       wcscpy        wcstold
 759
 760
 761 config EGLIBC_OPTION_POSIX_REGEXP
 762         bool "Regular expressions"
 763         default y
 764         help
 765           This option group includes the POSIX regular expression
 766           functions, and the associated non-POSIX extensions and
 767           compatibility functions.
 768
 769           With EGLIBC_OPTION_POSIX_REGEXP disabled, the following functions are
 770           omitted from libc:
 771
 772                 re_comp                 re_max_failures         regcomp
 773                 re_compile_fastmap      re_search               regerror
 774                 re_compile_pattern      re_search_2             regexec
 775                 re_exec                 re_set_registers        regfree
 776                 re_match                re_set_syntax           rpmatch
 777                 re_match_2              re_syntax_options
 778
 779           Furthermore, the compatibility regexp interface defined in the
 780           <regexp.h> header file, 'compile', 'step', and 'advance', is
 781           omitted.
 782
 783
 784 config EGLIBC_OPTION_POSIX_REGEXP_GLIBC
 785         bool "Regular expressions from GLIBC"
 786         default y
 787         depends EGLIBC_VERSION_2_10 || EGLIBC_VERSION_2_11
 788         select EGLIBC_OPTION_POSIX_REGEXP
 789         help
 790           This option group specifies which regular expression
 791           library to use.  The choice is between regex
 792           implementation from GLIBC and regex implementation from
 793           libiberty.  The GLIBC variant is fully POSIX conformant and
 794           optimized for speed; regex from libiberty is more than twice
 795           as small while still is enough for most practical purposes.
 796
 797
 798 config EGLIBC_OPTION_POSIX_WIDE_CHAR_DEVICE_IO
 799         bool "Input and output functions for wide characters"
 800         default y
 801         select EGLIBC_OPTION_POSIX_C_LANG_WIDE_CHAR if EGLIBC_VERSION_2_8 || EGLIBC_VERSION_2_9 || EGLIBC_VERSION_2_10 || EGLIBC_VERSION_2_11
 802         help
 803           This option group includes functions for reading and writing
 804           wide characters to and from <stdio.h> streams.
 805
 806           This option group includes the following functions:
 807
 808                 fgetwc        fwprintf      putwchar      vwscanf
 809                 fgetws        fwscanf       ungetwc       wprintf
 810                 fputwc        getwc         vfwprintf     wscanf
 811                 fputws        getwchar      vfwscanf
 812                 fwide         putwc         vwprintf
 813
 814           This option group further includes the following unlocked
 815           variants of the above functions:
 816
 817                 fgetwc_unlocked           getwc_unlocked
 818                 fgetws_unlocked           getwchar_unlocked
 819                 fputwc_unlocked           putwc_unlocked
 820                 fputws_unlocked           putwchar_unlocked
 821
 822           Note that the GNU standard C++ library, 'libstdc++.so', uses
 823           some of these functions; you will not be able to link or run
 824           C++ programs if you disable this option group.
 825
 826           This option group also affects the behavior of the following
 827           functions:
 828
 829                 fdopen
 830                 fopen
 831                 fopen64
 832                 freopen
 833                 freopen64
 834
 835           These functions all take an OPENTYPE parameter which may
 836           contain a string of the form ",ccs=CHARSET", indicating that
 837           the underlying file uses the character set named CHARSET.
 838           This produces a wide-oriented stream, which is only useful
 839           when the functions included in this option group are present.
 840           If the user attempts to open a file specifying a character set
 841           in the OPENTYPE parameter, and EGLIBC was built with this
 842           option group disabled, the function returns NULL, and sets
 843           errno to EINVAL.