Re: Problems Building net/net-snmp in pkgsrc - need help please

[Johnny Lam <jlam%pkgsrc.org@localhost>]

tnoell%lexmark.com@localhost wrote:
> OK, I did this***, and in /usr/lib/*.la I see the following references to
> libbeecrypt:
>
> galaxy 0 barch% cd /usr/lib
> /users/tnoell/barch
> galaxy 0 lib% grep beecrypt *.la
> /usr/lib
> librpmbuild.la:dependency_libs='
> -L/usr/src/build/588060-i386/install/usr/lib -L/usr/lib /usr/lib/librpm.la
> -L/usr/local/lib /usr/lib/librpmdb.la /usr/lib/libpopt.la
> /usr/lib/librpmio.la /usr/lib/libbeecrypt.la -lrt -lpthread -lz -lbz2
> -lelf'
> librpmdb.la:dependency_libs=' -L/usr/src/build/588060-i386/install/usr/lib
> -L/usr/lib /usr/lib/librpmio.la /usr/lib/libbeecrypt.la -lrt -lpthread
> -L/usr/local/lib -lz -lbz2 /usr/lib/libpopt.la -lelf'
> librpmio.la:dependency_libs=' -L/usr/src/build/588060-i386/install/usr/lib
> -L/usr/lib /usr/lib/libbeecrypt.la -lrt -lpthread -L/usr/local/lib -lz
> -lbz2'
> librpm.la:dependency_libs=' -L/usr/src/build/588060-i386/install/usr/lib
> -L/usr/lib /usr/lib/librpmdb.la -L/usr/local/lib -lelf /usr/lib/librpmio.la
> /usr/lib/libbeecrypt.la -lrt -lpthread -lz -lbz2 /usr/lib/libpopt.la'

Okay, this is your problem.  You're linking against librpmio.so, so all 
of the libraries that are needed by librpmio.so must also be provided on 
your system.  You therefore should install whatever provides 
/usr/lib/libbeecrypt.la or else /usr/lib/librpmio.so is unusable for builds.

> I also found some discussions on the net-snmp users list
> (http://sourceforge.net/mailarchive/forum.php?forum_id=4959
> and search on beecrypt)
>
> There it is said that the net-snmp/hsot/hr_swinst module needs librpmio,
> which on my system is one of the ones that references beecrypt.
> In those users' worlds, the standard answer appears to be "install the
> beecrypt-devel rpm" and the problem goes away.

This advice is correct.

> In the pkgsrc world, I have already installed security/beecrypt, and
> libbeecrypt.la is happily sitting in my pkgsrc $PREFIX/lib/libbeecrypt.la
> (see my earlier note).

Yes, but the version of libbeecrypt installed by pkgsrc may not match 
the one that is needed by /usr/lib/librpmio.so, so playing games with 
the dynamic linker through symlinks or LD_LIBRARY_PATH may get you burned.

> I'm pretty sure that libtool is looking at ldd output on
> /usr/lib/librpmio.* and adding /usr/lib/libbeecrypt.* to the list of
> depended on libraries.
> So how do I get libtool to find it in my pkgsrc $PREFIX/lib dir?  (I threw
> the -L${PREFIX}/lib flag, but libtool doesn't seem to be applying that to
> libs sucked in by walking ldd and finding "/usr/lib/libbeecrypt.*"

No, that is not what libtool is doing.   Libtool is complaining because 
you're linking against -lrpmio, which causes libtool to read 
/usr/lib/librpmio.la.  Upon reading /usr/lib/librpmio.la, it sees that 
it should be able to find /usr/lib/libbeecrypt.la because it's mentioned 
in the "dependency_libs" line of /usr/lib/librpmio.la.  When libtool 
can't find /usr/lib/libbeecrypt.la at this point, it bails out with the 
error that you see.

> Thinking I could set LD_LIBRARY_PATH to my pkgsrc $PREFIX/lib dir, I did
> this and tried again.  Unfortunately, libtool still wants libbeecrypt to
> come from /usr/lib.
>
> Any more ideas?  Surely there is a way to get libtool to resolve discovered
> dynamic library dependencies against the -L path or LD_LIBRARY_PATH?

No, you don't want to do this.  You want to just install the 
beecrypt-devel RPM so that you can successfully link against the 
librpmio.so in the base system.  Note that this advice only applies to 
systems that have /usr/lib/librpm* in the base system.  Linux systems 
that don't have those libraries aren't affected by this problem.

        Cheers,

        -- Johnny Lam <jlam%pkgsrc.org@localhost>