[Xorp-users] Builing xorp with --enable-shared vs --with-pic

[Jose Manuel dos Santos Calhariz]

On Tue, Oct 07, 2008 at 04:33:46PM -0700, Pavlin Radoslavov wrote:
> Jose Manuel dos Santos Calhariz <jose.spam at netvisao.pt> wrote:
> 
> > I don't know why but I didn't receive the 2 replys to my question.
> > Copying from the archives.
> 
> Is your subscription email address <jose.spam at netvisao.pt> valid?

Yes it is, thank you.  I have found and corrected the problem.

> 
> > Jose Manuel dos Santos Calhariz <jose.spam at netvisao.pt> wrote:
> > 
> > > > Hi
> > > > 
> > > > As I don't understand well the compiling process of xorp 1.5 so I have a
> > > > question. 
> > > > 
> > > > What is the diference of building xorp using switch --enable-shared vs
> > > > --with-pic in a Linux system.
> > > > 
> > > > If building xorp with snmp support it will generate shared libraries
> > > > for mibs that are made with objects compiled without -fPIC.  This is a
> > > > problem in Linux and even breaks on x86_84 systems.  
> > > > 
> > > > What is best? --enable-shared or with-pic
> > > > 
> > > > See bug report on Debian for more info
> > > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=500325 
> > > > 
> > > >      Jose Calhariz
> > 
> > > What is the original issue you are trying to solve?
> > > According to the above Debian bug report, I am guessing XORP failed
> > > to compile on x86_64 machine with SNMP enabled.
> > 
> > > Did you try to use the following commands:
> > >        ./configure --with-snmp --enable-shared
> > >        gmake clean
> > >        gmake
> > 
> > > The original text in xorp/ERRATA cited FreeBSD as one of the example
> > > OS-es that have that problem. I just tried Ubuntu-7.10 on amd64, and
> > > using --enable-shared fixed the problem for me.
> > 
> > The two options seams to work, --enable-shared and --with-pic.  I am
> > asking what is the best option in the opinion of Xorp developers, as I
> > am one of the persons building xorp to be released in Debian.  But
> > this weekend I had to use a i386 machine for the tests.  It don't
> > break the compilation but complains about non -fPIC code inside a
> > shared library.
> > 
> > Now that my x86_64 machine is again working I can try it and be 100%
> > certain that --enable-shared or --with-pic solve the problem.
> 
> The original advice in xorp/ERRATA was to use --enable-shared.
> However, if --with-pic solves the problem, I think --enable-shared
> is probably an overkill. Also, the --enable-shared solution hasn't
> been tested in details (e.g., whether the libraries are installed
> properly by "gmake install"), so it might be safer to go with the
> --with-pic solution.

I will use the "--with-pic" option, it worked with my test setup for
next release of Debian in x86_64.  Thank you for your help.

If there is peopled interested in this mailing list I may put in a
public access repository, non-oficial packages of xorp release 1.5 for
Debian 4.0, aka, stable, for i386, amd64, powerpc and sparc archs.

> 
> Pavlin
> 

    José Calhariz

-- 
--
	E parte da cura o desejo de ser curado.
		-- Seneca, o jovem; filosofo romano4 a.C. ± 65 d.C.. 
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