problem with devfsd compilation

problem with devfsd compilation

[hiren_mehta]

Hi,

I am trying to compile devfsd on my system running RedHat linux 7.0
(kernel 2.2.16-22). I get the error "RTLD_NEXT" undefined. I am not
sure where this symbol is defined. Is there anything that I am missing 
on my system. 

Also, I applied the devfs patch to the kernel, installed the new
kernel, modified lilo.conf, ran lilo and rebooted the system
with the  option "devfs=nomount". The system is able to mount
the root file system in readonly mode. But after that when
it tries to do fsck to the root file system before mounting 
it in "rw" mode, it fails. Looks like devfs seems to be
having a problem with my /etc/fstab. My /etc/fstab has device names
specified in the "LABEL=.." format. Does devfs understand LABEL=..
format ?

Any help is appreciated.

-hiren
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Re: problem with devfsd compilation

[Georg Nikodym]

>>>>> "hm" == hiren mehta <hiren_mehta@agilent.com> writes:

 hm> Hi, I am trying to compile devfsd on my system running RedHat
 hm> linux 7.0 (kernel 2.2.16-22). I get the error "RTLD_NEXT"
 hm> undefined. I am not sure where this symbol is defined. Is there
 hm> anything that I am missing on my system.

make CEXTRAS=-D_GNU_SOURCE

is one way to get around this.
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Re: problem with devfsd compilation

[Alan Cox]

> I am trying to compile devfsd on my system running RedHat linux 7.0
> (kernel 2.2.16-22). I get the error "RTLD_NEXT" undefined. I am not
> sure where this symbol is defined. Is there anything that I am missing 
> on my system. 

Sounds like a missing include in the devfsd code. That comes from
dlfcn.h.

Alan

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Re: problem with devfsd compilation

[Michael B. Trausch]

On Thu, 1 Feb 2001, Alan Cox wrote:

> > I am trying to compile devfsd on my system running RedHat linux 7.0
> > (kernel 2.2.16-22). I get the error "RTLD_NEXT" undefined. I am not
> > sure where this symbol is defined. Is there anything that I am missing 
> > on my system. 
> 
> Sounds like a missing include in the devfsd code. That comes from
> dlfcn.h.
> 

If you add -D_GNU_SOURCE to the make line in CC_OPTS (or CCOPTS, I forget
which) it works fine.  Had the same exact problem here.

	- Mike

===========================================================================
Michael B. Trausch                                    fd0man@crosswinds.net
Avid Linux User since April, '96!                           AIM:  ML100Smkr

              Contactable via IRC (DALNet) or AIM as ML100Smkr
===========================================================================

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Re: problem with devfsd compilation

[Georg Nikodym]

>>>>> "hm" == hiren mehta <hiren_mehta@agilent.com> writes:

 hm> Hi, I am trying to compile devfsd on my system running RedHat
 hm> linux 7.0 (kernel 2.2.16-22). I get the error "RTLD_NEXT"
 hm> undefined. I am not sure where this symbol is defined. Is there
 hm> anything that I am missing on my system.

Oh yeah, here's the two other things I forgot.

The install target of the devfsd GNUmakefile attempts to copy the
devfsd.8 man page into /usr/man/man8 which doesn't exist.  RH7 has
its man pages in /usr/share/man though you might prefer
/usr/local/man, whatever.  I just changed the GNUmakefile.

Also, RH7's /etc/rc.sysinit can already start devfsd automatically
with the following line:

    [ -e /dev/.devfsd -a -x /sbin/devfsd ] && /sbin/devfsd /dev

So, all you have to do is create an empty file /dev/.devfsd
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Re: problems with devfsd compilation

[Paul Collins]

Georg Nikodym (georgn@somanetworks.com) wrote:

> Also, RH7's /etc/rc.sysinit can already start devfsd automatically
> with the following line:
> 
>     [ -e /dev/.devfsd -a -x /sbin/devfsd ] && /sbin/devfsd /dev
> 
> So, all you have to do is create an empty file /dev/.devfsd

That file is created by devfs itself, and is used for communication
with devfsd.  What the check for that file accomplishes is to only
start devfsd if devfs is mounted.

-- 
<sneakums@zork.net> >>>>>>> >>>>>> >>>>> >>>> >>> >> >
< << <<< This used to be real-estate,
         now it's only fields and trees. >>>> >>> >> >
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Re: problem with devfsd compilation

[Michael B. Trausch]

On Thu, 1 Feb 2001 hiren_mehta@agilent.com wrote:
>
> Hi,
> 
> I am trying to compile devfsd on my system running RedHat linux 7.0
> (kernel 2.2.16-22). I get the error "RTLD_NEXT" undefined. I am not
> sure where this symbol is defined. Is there anything that I am missing 
> on my system. 
> 

It's a problem with the makefile -- You need to have -D_GNU_SOURCE (or
#define _GNU_SOURCE as one of the first lines in all the source files of
the package)

	- Mike

===========================================================================
Michael B. Trausch                                    fd0man@crosswinds.net
Avid Linux User since April, '96!                           AIM:  ML100Smkr

              Contactable via IRC (DALNet) or AIM as ML100Smkr
===========================================================================

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