X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fdirent_h.m4;h=3f2b16b1212adb86b21a0827e1a10b4f8f6eeddd;hb=46f5f314f34a08c9305758482d7d2fdb0e999d09;hp=54dea8e47f789db235242787c35f85e0aa6829fa;hpb=d1a73882fc992d3184bec3a4ccd57b52d95a7458;p=gnulib.git

diff --git a/m4/dirent_h.m4 b/m4/dirent_h.m4
index 54dea8e47..3f2b16b12 100644
--- a/m4/dirent_h.m4
+++ b/m4/dirent_h.m4
@@ -1,5 +1,5 @@
-# dirent_h.m4 serial 8
-dnl Copyright (C) 2008-2009 Free Software Foundation, Inc.
+# dirent_h.m4 serial 16
+dnl Copyright (C) 2008-2014 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.
@@ -12,38 +12,53 @@ AC_DEFUN([gl_DIRENT_H],
   dnl once only, before all statements that occur in other macros.
   AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
 
-  dnl Execute this unconditionally, because DIRENT_H may be set by other
-  dnl modules, after this code is executed.
+  dnl <dirent.h> is always overridden, because of GNULIB_POSIXCHECK.
   gl_CHECK_NEXT_HEADERS([dirent.h])
-])
+  if test $ac_cv_header_dirent_h = yes; then
+    HAVE_DIRENT_H=1
+  else
+    HAVE_DIRENT_H=0
+  fi
+  AC_SUBST([HAVE_DIRENT_H])
 
-dnl Unconditionally enables the replacement of <dirent.h>.
-AC_DEFUN([gl_REPLACE_DIRENT_H],
-[
-  AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
-  :
+  dnl Check for declarations of anything we want to poison if the
+  dnl corresponding gnulib module is not in use.
+  gl_WARN_ON_USE_PREPARE([[#include <dirent.h>
+    ]], [alphasort closedir dirfd fdopendir opendir readdir rewinddir scandir])
 ])
 
 AC_DEFUN([gl_DIRENT_MODULE_INDICATOR],
 [
   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
   AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
-  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+  dnl Define it also as a C macro, for the benefit of the unit tests.
+  gl_MODULE_INDICATOR_FOR_TESTS([$1])
 ])
 
 AC_DEFUN([gl_DIRENT_H_DEFAULTS],
 [
   AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl for REPLACE_FCHDIR
+  GNULIB_OPENDIR=0;     AC_SUBST([GNULIB_OPENDIR])
+  GNULIB_READDIR=0;     AC_SUBST([GNULIB_READDIR])
+  GNULIB_REWINDDIR=0;   AC_SUBST([GNULIB_REWINDDIR])
+  GNULIB_CLOSEDIR=0;    AC_SUBST([GNULIB_CLOSEDIR])
   GNULIB_DIRFD=0;       AC_SUBST([GNULIB_DIRFD])
   GNULIB_FDOPENDIR=0;   AC_SUBST([GNULIB_FDOPENDIR])
   GNULIB_SCANDIR=0;     AC_SUBST([GNULIB_SCANDIR])
   GNULIB_ALPHASORT=0;   AC_SUBST([GNULIB_ALPHASORT])
   dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_OPENDIR=1;       AC_SUBST([HAVE_OPENDIR])
+  HAVE_READDIR=1;       AC_SUBST([HAVE_READDIR])
+  HAVE_REWINDDIR=1;     AC_SUBST([HAVE_REWINDDIR])
+  HAVE_CLOSEDIR=1;      AC_SUBST([HAVE_CLOSEDIR])
   HAVE_DECL_DIRFD=1;    AC_SUBST([HAVE_DECL_DIRFD])
+  HAVE_DECL_FDOPENDIR=1;AC_SUBST([HAVE_DECL_FDOPENDIR])
   HAVE_FDOPENDIR=1;     AC_SUBST([HAVE_FDOPENDIR])
   HAVE_SCANDIR=1;       AC_SUBST([HAVE_SCANDIR])
   HAVE_ALPHASORT=1;     AC_SUBST([HAVE_ALPHASORT])
+  REPLACE_OPENDIR=0;    AC_SUBST([REPLACE_OPENDIR])
   REPLACE_CLOSEDIR=0;   AC_SUBST([REPLACE_CLOSEDIR])
+  REPLACE_DIRFD=0;      AC_SUBST([REPLACE_DIRFD])
   REPLACE_FDOPENDIR=0;  AC_SUBST([REPLACE_FDOPENDIR])
-  REPLACE_OPENDIR=0;    AC_SUBST([REPLACE_OPENDIR])
 ])