kc3-lang/gnulib/m4/getugroups.m4

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• Hash : 6e4b15b5
  Author :
  Date : 2009-11-12T10:19:39
  

  getgroups: don't expose GETGROUPS_T to user
  
  These days, most systems already declare getgroups with gid_t*.
  But in the rare case that GETGROUPS_T is still int but gid_t
  is short, the user should not have to uglify their code; let
  the replacement hide all the magic.
  
  Tested by configuring with ac_cv_type_getgroups=uint64_t on a
  platform with 32-bit gid_t, and ignoring compiler warnings.
  
  However, since we don't replace setgroups, the GETGROUPS_T
  workaround is still needed there for now.
  
  * lib/getgroups.c (rpl_getgroups): Change signature.  Copy array
  an element at a time if GETGROUPS_T is wrong size.
  * lib/getugroups.h (getugroups): Change signature.
  * lib/unistd.in.h (getgroups): Likewise.
  * m4/getgroups.m4 (gl_FUNC_GETGROUPS): Use replacement if
  signature needs fixing.
  * m4/getugroups.m4 (gl_GETUGROUPS): No longer need
  AC_TYPE_GETGROUPS.
  * modules/group-member (Depends-on): Add getgroups.
  * lib/group-member.c (group_info, get_group_info): Use gid_t.
  (group_member): Rely on getgroups replacement.
  * lib/getugroups.c (getugroups): Use gid_t.
  * tests/test-getgroups.c (main): Likewise.
  * NEWS: Mention the signature change.
  * doc/posix-functions/getgroups.texi (getgroups): Mention the
  problem with signature.
  * doc/glibc-functions/setgroups.texi (setgroups): Mention that
  GETGROUPS_T is still useful for setgroups.
  
  Signed-off-by: Eric Blake <ebb9@byu.net>
  

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• m4/getugroups.m4

• # getugroups.m4 serial 8
  dnl Copyright (C) 2002, 2003, 2005, 2006, 2009 Free Software
  dnl Foundation, Inc.
  dnl This file is free software; the Free Software Foundation
  dnl gives unlimited permission to copy and/or distribute it,
  dnl with or without modifications, as long as this notice is preserved.
  
  AC_DEFUN([gl_GETUGROUPS],
  [
    AC_LIBOBJ([getugroups])
    AC_CHECK_HEADERS_ONCE([grp.h])
  ])
  

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