Re: errors building m4 on interix/sfu/sua

[Bruno Haible]

Eric Blake wrote:
> gnulib can work around missing ESTALE, but we
> would need to port errno_h.m4 to detect interix's situation

Done as follows:


2009-06-17  Bruno Haible  <address@hidden>

        Define missing ESTALE on Interix 3.5.
        * lib/errno.in.h (ESTALE): Assign a value if missing.
        * lib/strerror.c (rpl_strerror): Handle missing ESTALE and ECANCELED.
        * m4/errno_h.m4 (gl_HEADER_ERRNO_H): Also test whether ESTALE is
        missing.
        * doc/posix-headers/errno.texi: Mention the Interix bug.
        Reported by Jay Krell <address@hidden> via Eric Blake.

--- lib/errno.in.h.orig 2009-06-17 10:33:17.000000000 +0200
+++ lib/errno.in.h      2009-06-17 10:24:53.000000000 +0200
@@ -1,6 +1,6 @@
 /* A POSIX-like <errno.h>.
 
-   Copyright (C) 2008 Free Software Foundation, Inc.
+   Copyright (C) 2008-2009 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -145,6 +145,11 @@
 #  define GNULIB_defined_ENOTSUP 1
 # endif
 
+# ifndef ESTALE
+#  define ESTALE    2009
+#  define GNULIB_defined_ESTALE 1
+# endif
+
 # ifndef ECANCELED
 #  define ECANCELED 2008
 #  define GNULIB_defined_ECANCELED 1
--- lib/strerror.c.orig 2009-06-17 10:33:17.000000000 +0200
+++ lib/strerror.c      2009-06-17 10:28:13.000000000 +0200
@@ -313,7 +313,13 @@
       break;
 # endif
 
-# if GNULIB_defined_
+# if GNULIB_defined_ESTALE
+    case ESTALE:
+      msg = "Stale NFS file handle";
+      break;
+# endif
+
+# if GNULIB_defined_ECANCELED
     case ECANCELED:
       msg = "Operation canceled";
       break;
--- m4/errno_h.m4.orig  2009-06-17 10:33:17.000000000 +0200
+++ m4/errno_h.m4       2009-06-17 10:23:39.000000000 +0200
@@ -1,4 +1,4 @@
-# errno_h.m4 serial 5
+# errno_h.m4 serial 6
 dnl Copyright (C) 2004, 2006, 2008, 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,
@@ -34,6 +34,9 @@
 #if !defined ENOTSUP
 booboo
 #endif
+#if !defined ESTALE
+booboo
+#endif
 #if !defined ECANCELED
 booboo
 #endif
--- doc/posix-headers/errno.texi.orig   2009-06-17 10:33:17.000000000 +0200
+++ doc/posix-headers/errno.texi        2009-06-17 10:21:00.000000000 +0200
@@ -19,14 +19,17 @@
 @code{ENOTSUP} are not defined on some platforms:
 OpenBSD 4.0, mingw.
 @item
+The macro @code{ESTALE} is not defined on some platforms:
+mingw, Interix 3.5.
address@hidden
 The macros @code{EWOULDBLOCK}, @code{ETXTBSY}, @code{ELOOP}, @code{ENOTSOCK},
 @code{EDESTADDRREQ}, @code{EMSGSIZE}, @code{EPROTOTYPE}, @code{ENOPROTOOPT},
 @code{EPROTONOSUPPORT}, @code{EOPNOTSUPP}, @code{EAFNOSUPPORT},
 @code{EADDRINUSE}, @code{EADDRNOTAVAIL}, @code{ENETDOWN}, @code{ENETUNREACH},
 @code{ENETRESET}, @code{ECONNABORTED}, @code{ECONNRESET}, @code{ENOBUFS},
 @code{EISCONN}, @code{ENOTCONN}, @code{ETIMEDOUT}, @code{ECONNREFUSED},
address@hidden, @code{EALREADY}, @code{EINPROGRESS}, @code{ESTALE},
address@hidden are not defined on some platforms:
address@hidden, @code{EALREADY}, @code{EINPROGRESS}, @code{EDQUOT} are
+not defined on some platforms:
 mingw.
 @end itemize