emacs/m4/faccessat.m4

# serial 6
# See if we need to provide faccessat replacement.

dnl Copyright (C) 2009-2016 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.

# Written by Eric Blake.

AC_DEFUN([gl_FUNC_FACCESSAT],
[
  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])

  dnl Persuade glibc <unistd.h> to declare faccessat().
  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])

  AC_CHECK_FUNCS_ONCE([faccessat])
  if test $ac_cv_func_faccessat = no; then
    HAVE_FACCESSAT=0
  fi
])

# Prerequisites of lib/faccessat.m4.
AC_DEFUN([gl_PREREQ_FACCESSAT],
[
  AC_CHECK_FUNCS([access])
])