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Re: getcwd fails on Interix 3.5


From: Paul Eggert
Subject: Re: getcwd fails on Interix 3.5
Date: Wed, 02 May 2007 12:08:10 -0700
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux)

Kaz Sasayama <address@hidden> writes:

>    1. Modify the configure test for d_ino member in struct dirent to
>       fail on Interix and process as if there is no d_ino member.

Sounds good.  I installed the following into gnulib; does it fix your
problem?

* m4/d-ino.m4 (gl_CHECK_TYPE_STRUCT_DIRENT_D_INO): Test whether
readdir returns garbage in d_ino.  Problem reported by Kaz Sasayama in
<http://lists.gnu.org/archive/html/bug-gnulib/2007-05/msg00021.html>.
Index: m4/d-ino.m4
===================================================================
RCS file: /cvsroot/gnulib/gnulib/m4/d-ino.m4,v
retrieving revision 1.10
diff -u -p -r1.10 d-ino.m4
--- m4/d-ino.m4 11 Jul 2006 06:02:51 -0000      1.10
+++ m4/d-ino.m4 2 May 2007 19:06:43 -0000
@@ -1,11 +1,11 @@
-#serial 8
+#serial 9

 dnl From Jim Meyering.
 dnl
 dnl Check whether struct dirent has a member named d_ino.
 dnl

-# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2006 Free Software
+# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2006, 2007 Free Software
 # Foundation, Inc.

 # This file is free software; the Free Software Foundation
@@ -14,19 +14,26 @@ dnl

 AC_DEFUN([gl_CHECK_TYPE_STRUCT_DIRENT_D_INO],
   [AC_CACHE_CHECK([for d_ino member in directory struct],
-                 jm_cv_struct_dirent_d_ino,
-     [AC_TRY_LINK(dnl
-       [
-#include <sys/types.h>
-#include <dirent.h>
-       ],
-       [struct dirent dp; dp.d_ino = 0;],
-
-       jm_cv_struct_dirent_d_ino=yes,
-       jm_cv_struct_dirent_d_ino=no)
-     ]
-   )
-   if test $jm_cv_struct_dirent_d_ino = yes; then
+                 gl_cv_struct_dirent_d_ino,
+     [AC_RUN_IFELSE(
+       [AC_LANG_PROGRAM(
+          [[#include <sys/types.h>
+            #include <sys/stat.h>
+            #include <dirent.h>
+          ]],
+          [[DIR *dp = opendir (".");
+            struct dirent *e;
+            struct stat st;
+            if (! dp)
+              return 1;
+            e = readdir (dp);
+            return ! (e
+                      && stat (e->d_name, &st) == 0
+                      && e->d_ino == st.st_ino);]])],
+           [gl_cv_struct_dirent_d_ino=yes],
+           [gl_cv_struct_dirent_d_ino=no],
+           [gl_cv_struct_dirent_d_ino=no])])
+   if test $gl_cv_struct_dirent_d_ino = yes; then
      AC_DEFINE(D_INO_IN_DIRENT, 1,
        [Define if there is a member named d_ino in the struct describing
         directory headers.])




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