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Re: linking problem in fatfs

From: Thomas Schwinge
Subject: Re: linking problem in fatfs
Date: Sat, 31 Mar 2007 22:54:49 +0200
User-agent: Mutt/1.5.11


On Sat, Mar 31, 2007 at 01:03:23PM -0700, Roland McGrath wrote:
> That only happens because something else causes node-create.o to be linked in.
> If you are overriding it, you must supply all the symbols it does.

Okay, the problem was the following one: the Debian GNU/Hurd people have
a patch included that goes like this:

--- hurd/libdiskfs/node-create.c.orig   2006-01-20 01:45:49.000000000 +0100
+++ hurd/libdiskfs/node-create.c        2006-01-20 01:46:42.000000000 +0100
@@ -20,7 +20,7 @@
 /* This enables SysV style group behaviour.  New nodes inherit the GID
    of the user creating them unless the SGID bit is set of the parent
    directory.  */
-int _diskfs_no_inherit_dir_group;
+int _diskfs_no_inherit_dir_group = 1;

... moving that symbol from common storage into the data section.  This
modifiction, however, was not applied to the fatfs's
`_diskfs_no_inherit_dir_group' symbol, so that one was to be ``treated as
undefined reference[s]'' according to the linker semantics, leading to
what you described above, leading to my original report.  I'll find a
better way, to get that Debian patch replaced.


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