m4/dirent_h.m4

   1 # dirent_h.m4 serial 16
   2 dnl Copyright (C) 2008-2014 Free Software Foundation, Inc.
   3 dnl This file is free software; the Free Software Foundation
   4 dnl gives unlimited permission to copy and/or distribute it,
   5 dnl with or without modifications, as long as this notice is preserved.
   6
   7 dnl Written by Bruno Haible.
   8
   9 AC_DEFUN([gl_DIRENT_H],
  10 [
  11   dnl Use AC_REQUIRE here, so that the default behavior below is expanded
  12   dnl once only, before all statements that occur in other macros.
  13   AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
  14
  15   dnl <dirent.h> is always overridden, because of GNULIB_POSIXCHECK.
  16   gl_CHECK_NEXT_HEADERS([dirent.h])
  17   if test $ac_cv_header_dirent_h = yes; then
  18     HAVE_DIRENT_H=1
  19   else
  20     HAVE_DIRENT_H=0
  21   fi
  22   AC_SUBST([HAVE_DIRENT_H])
  23
  24   dnl Check for declarations of anything we want to poison if the
  25   dnl corresponding gnulib module is not in use.
  26   gl_WARN_ON_USE_PREPARE([[#include <dirent.h>
  27     ]], [alphasort closedir dirfd fdopendir opendir readdir rewinddir scandir])
  28 ])
  29
  30 AC_DEFUN([gl_DIRENT_MODULE_INDICATOR],
  31 [
  32   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
  33   AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
  34   gl_MODULE_INDICATOR_SET_VARIABLE([$1])
  35   dnl Define it also as a C macro, for the benefit of the unit tests.
  36   gl_MODULE_INDICATOR_FOR_TESTS([$1])
  37 ])
  38
  39 AC_DEFUN([gl_DIRENT_H_DEFAULTS],
  40 [
  41   AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl for REPLACE_FCHDIR
  42   GNULIB_OPENDIR=0;     AC_SUBST([GNULIB_OPENDIR])
  43   GNULIB_READDIR=0;     AC_SUBST([GNULIB_READDIR])
  44   GNULIB_REWINDDIR=0;   AC_SUBST([GNULIB_REWINDDIR])
  45   GNULIB_CLOSEDIR=0;    AC_SUBST([GNULIB_CLOSEDIR])
  46   GNULIB_DIRFD=0;       AC_SUBST([GNULIB_DIRFD])
  47   GNULIB_FDOPENDIR=0;   AC_SUBST([GNULIB_FDOPENDIR])
  48   GNULIB_SCANDIR=0;     AC_SUBST([GNULIB_SCANDIR])
  49   GNULIB_ALPHASORT=0;   AC_SUBST([GNULIB_ALPHASORT])
  50   dnl Assume proper GNU behavior unless another module says otherwise.
  51   HAVE_OPENDIR=1;       AC_SUBST([HAVE_OPENDIR])
  52   HAVE_READDIR=1;       AC_SUBST([HAVE_READDIR])
  53   HAVE_REWINDDIR=1;     AC_SUBST([HAVE_REWINDDIR])
  54   HAVE_CLOSEDIR=1;      AC_SUBST([HAVE_CLOSEDIR])
  55   HAVE_DECL_DIRFD=1;    AC_SUBST([HAVE_DECL_DIRFD])
  56   HAVE_DECL_FDOPENDIR=1;AC_SUBST([HAVE_DECL_FDOPENDIR])
  57   HAVE_FDOPENDIR=1;     AC_SUBST([HAVE_FDOPENDIR])
  58   HAVE_SCANDIR=1;       AC_SUBST([HAVE_SCANDIR])
  59   HAVE_ALPHASORT=1;     AC_SUBST([HAVE_ALPHASORT])
  60   REPLACE_OPENDIR=0;    AC_SUBST([REPLACE_OPENDIR])
  61   REPLACE_CLOSEDIR=0;   AC_SUBST([REPLACE_CLOSEDIR])
  62   REPLACE_DIRFD=0;      AC_SUBST([REPLACE_DIRFD])
  63   REPLACE_FDOPENDIR=0;  AC_SUBST([REPLACE_FDOPENDIR])
  64 ])