kc3-lang/gnulib/m4/unistd_h.m4

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• Hash : cdba659e
  Author :
  Date : 2009-10-05T21:30:33
  

  linkat: support Linux 2.6.17
  
  * m4/linkat.m4 (gl_FUNC_LINKAT): Default to always replacing
  linkat on Linux, but allow cache variable override.
  * lib/linkat.c (rpl_linkat): Define override.
  * modules/linkat (Depends-on): Add symlinkat.
  * m4/unistd_h.m4 (gl_UNISTD_H_DEFAULTS): Add new default.
  * modules/unistd (Makefile.am): Substitute it.
  * lib/unistd.in.h (linkat): Declare replacement.
  Reported by Pádraig Brady.
  
  Signed-off-by: Eric Blake <ebb9@byu.net>
  

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• m4/unistd_h.m4

• # unistd_h.m4 serial 31
  dnl Copyright (C) 2006-2009 Free Software 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.
  
  dnl Written by Simon Josefsson, Bruno Haible.
  
  AC_DEFUN([gl_UNISTD_H],
  [
    dnl Use AC_REQUIRE here, so that the default behavior below is expanded
    dnl once only, before all statements that occur in other macros.
    AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
  
    gl_CHECK_NEXT_HEADERS([unistd.h])
  
    AC_CHECK_HEADERS_ONCE([unistd.h])
    if test $ac_cv_header_unistd_h = yes; then
      HAVE_UNISTD_H=1
    else
      HAVE_UNISTD_H=0
    fi
    AC_SUBST([HAVE_UNISTD_H])
  ])
  
  AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
  [
    dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
    AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
    GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
  ])
  
  AC_DEFUN([gl_UNISTD_H_DEFAULTS],
  [
    GNULIB_CHOWN=0;            AC_SUBST([GNULIB_CHOWN])
    GNULIB_CLOSE=0;            AC_SUBST([GNULIB_CLOSE])
    GNULIB_DUP2=0;             AC_SUBST([GNULIB_DUP2])
    GNULIB_DUP3=0;             AC_SUBST([GNULIB_DUP3])
    GNULIB_ENVIRON=0;          AC_SUBST([GNULIB_ENVIRON])
    GNULIB_EUIDACCESS=0;       AC_SUBST([GNULIB_EUIDACCESS])
    GNULIB_FACCESSAT=0;        AC_SUBST([GNULIB_FACCESSAT])
    GNULIB_FCHDIR=0;           AC_SUBST([GNULIB_FCHDIR])
    GNULIB_FCHOWNAT=0;         AC_SUBST([GNULIB_FCHOWNAT])
    GNULIB_FSYNC=0;            AC_SUBST([GNULIB_FSYNC])
    GNULIB_FTRUNCATE=0;        AC_SUBST([GNULIB_FTRUNCATE])
    GNULIB_GETCWD=0;           AC_SUBST([GNULIB_GETCWD])
    GNULIB_GETDOMAINNAME=0;    AC_SUBST([GNULIB_GETDOMAINNAME])
    GNULIB_GETDTABLESIZE=0;    AC_SUBST([GNULIB_GETDTABLESIZE])
    GNULIB_GETHOSTNAME=0;      AC_SUBST([GNULIB_GETHOSTNAME])
    GNULIB_GETLOGIN_R=0;       AC_SUBST([GNULIB_GETLOGIN_R])
    GNULIB_GETPAGESIZE=0;      AC_SUBST([GNULIB_GETPAGESIZE])
    GNULIB_GETUSERSHELL=0;     AC_SUBST([GNULIB_GETUSERSHELL])
    GNULIB_LCHOWN=0;           AC_SUBST([GNULIB_LCHOWN])
    GNULIB_LINK=0;             AC_SUBST([GNULIB_LINK])
    GNULIB_LINKAT=0;           AC_SUBST([GNULIB_LINKAT])
    GNULIB_LSEEK=0;            AC_SUBST([GNULIB_LSEEK])
    GNULIB_PIPE2=0;            AC_SUBST([GNULIB_PIPE2])
    GNULIB_READLINK=0;         AC_SUBST([GNULIB_READLINK])
    GNULIB_READLINKAT=0;       AC_SUBST([GNULIB_READLINKAT])
    GNULIB_RMDIR=0;            AC_SUBST([GNULIB_RMDIR])
    GNULIB_SLEEP=0;            AC_SUBST([GNULIB_SLEEP])
    GNULIB_SYMLINK=0;          AC_SUBST([GNULIB_SYMLINK])
    GNULIB_SYMLINKAT=0;        AC_SUBST([GNULIB_SYMLINKAT])
    GNULIB_UNISTD_H_GETOPT=0;  AC_SUBST([GNULIB_UNISTD_H_GETOPT])
    GNULIB_UNISTD_H_SIGPIPE=0; AC_SUBST([GNULIB_UNISTD_H_SIGPIPE])
    GNULIB_UNLINK=0;           AC_SUBST([GNULIB_UNLINK])
    GNULIB_UNLINKAT=0;         AC_SUBST([GNULIB_UNLINKAT])
    GNULIB_WRITE=0;            AC_SUBST([GNULIB_WRITE])
    dnl Assume proper GNU behavior unless another module says otherwise.
    HAVE_DUP2=1;            AC_SUBST([HAVE_DUP2])
    HAVE_DUP3=1;            AC_SUBST([HAVE_DUP3])
    HAVE_EUIDACCESS=1;      AC_SUBST([HAVE_EUIDACCESS])
    HAVE_FACCESSAT=1;       AC_SUBST([HAVE_FACCESSAT])
    HAVE_FCHOWNAT=1;        AC_SUBST([HAVE_FCHOWNAT])
    HAVE_FSYNC=1;           AC_SUBST([HAVE_FSYNC])
    HAVE_FTRUNCATE=1;       AC_SUBST([HAVE_FTRUNCATE])
    HAVE_GETDOMAINNAME=1;   AC_SUBST([HAVE_GETDOMAINNAME])
    HAVE_GETDTABLESIZE=1;   AC_SUBST([HAVE_GETDTABLESIZE])
    HAVE_GETHOSTNAME=1;     AC_SUBST([HAVE_GETHOSTNAME])
    HAVE_GETPAGESIZE=1;     AC_SUBST([HAVE_GETPAGESIZE])
    HAVE_GETUSERSHELL=1;    AC_SUBST([HAVE_GETUSERSHELL])
    HAVE_LINK=1;            AC_SUBST([HAVE_LINK])
    HAVE_LINKAT=1;          AC_SUBST([HAVE_LINKAT])
    HAVE_PIPE2=1;           AC_SUBST([HAVE_PIPE2])
    HAVE_READLINK=1;        AC_SUBST([HAVE_READLINK])
    HAVE_READLINKAT=1;      AC_SUBST([HAVE_READLINKAT])
    HAVE_SLEEP=1;           AC_SUBST([HAVE_SLEEP])
    HAVE_SYMLINK=1;         AC_SUBST([HAVE_SYMLINK])
    HAVE_SYMLINKAT=1;       AC_SUBST([HAVE_SYMLINKAT])
    HAVE_DECL_ENVIRON=1;    AC_SUBST([HAVE_DECL_ENVIRON])
    HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
    HAVE_OS_H=0;            AC_SUBST([HAVE_OS_H])
    HAVE_SYS_PARAM_H=0;     AC_SUBST([HAVE_SYS_PARAM_H])
    HAVE_UNLINKAT=1;        AC_SUBST([HAVE_UNLINKAT])
    REPLACE_CHOWN=0;        AC_SUBST([REPLACE_CHOWN])
    REPLACE_CLOSE=0;        AC_SUBST([REPLACE_CLOSE])
    REPLACE_DUP=0;          AC_SUBST([REPLACE_DUP])
    REPLACE_DUP2=0;         AC_SUBST([REPLACE_DUP2])
    REPLACE_FCHDIR=0;       AC_SUBST([REPLACE_FCHDIR])
    REPLACE_FCHOWNAT=0;     AC_SUBST([REPLACE_FCHOWNAT])
    REPLACE_GETCWD=0;       AC_SUBST([REPLACE_GETCWD])
    REPLACE_GETPAGESIZE=0;  AC_SUBST([REPLACE_GETPAGESIZE])
    REPLACE_LCHOWN=0;       AC_SUBST([REPLACE_LCHOWN])
    REPLACE_LINK=0;         AC_SUBST([REPLACE_LINK])
    REPLACE_LINKAT=0;       AC_SUBST([REPLACE_LINKAT])
    REPLACE_LSEEK=0;        AC_SUBST([REPLACE_LSEEK])
    REPLACE_READLINK=0;     AC_SUBST([REPLACE_READLINK])
    REPLACE_RMDIR=0;        AC_SUBST([REPLACE_RMDIR])
    REPLACE_SYMLINK=0;      AC_SUBST([REPLACE_SYMLINK])
    REPLACE_UNLINK=0;       AC_SUBST([REPLACE_UNLINK])
    REPLACE_UNLINKAT=0;     AC_SUBST([REPLACE_UNLINKAT])
    REPLACE_WRITE=0;        AC_SUBST([REPLACE_WRITE])
    UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H])
    UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0;
                             AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS])
  ])
  

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