Re: [Chicken-users] libsvm egg install problem

[Tom Poliquin]

Dashi,

Thanks for the reply .. and sorry for my delay
(startup deadline) ..

> Tom Poliquin wrote:
> > I'm trying to install the libsvm egg and not
> > having much success.
> >

> I've updated the egg (v1.1), which hopefully works fine.
> Please give it a try.
>

I tried it out and still having difficulties (albeit different ones :-) )

Here's the output of chicken-setup .. 

------------------
address@hidden chicken]$ chicken-setup libsvm

The extension libsvm does not exist.
Do you want to download it ? (yes/no/abort) [yes] yes
downloading libsvm.egg from (www.call-with-current-continuation.org eggs/3 80) 
  gzip -d -c /tmp/chicken-setup-3-cowboyneal/downloads/libsvm.egg | tar xf -
  /home/cowboyneal/bin/csc -feature compiling-extension -s -O2 libsvm_core.scm 
l
ibsvm_core_wrap.c -lsvm -I/usr/include/libsvm-2.0/libsvm
  /home/cowboyneal/bin/csc -feature compiling-extension -s -O2 libsvm.scm
Warning: extension `libsvm_core' is currently not installed
  rm -fr /home/cowboyneal/lib/chicken/3/libsvm.so
  cp -r libsvm.so /home/cowboyneal/lib/chicken/3/libsvm.so
  chmod a+r /home/cowboyneal/lib/chicken/3/libsvm.so
  rm -fr /home/cowboyneal/lib/chicken/3/libsvm_core.so
  cp -r libsvm_core.so /home/cowboyneal/lib/chicken/3/libsvm_core.so
  chmod a+r /home/cowboyneal/lib/chicken/3/libsvm_core.so
------------------

I ran it and got an undefined symbol .. __cxa_pure_virtual

------------------
address@hidden ~]$ csi svm.scm

CHICKEN
(c)2008 The Chicken Team
(c)2000-2007 Felix L. Winkelmann
Version 3.1.0 - linux-unix-gnu-x86      [ manyargs dload ptables applyhook ]
SVN rev. 10106  compiled 2008-05-20 on giliath (Linux)

; loading svm.scm ...
; loading /home/cowboyneal/lib/chicken/3/libsvm.so ...
; loading /home/cowboyneal/lib/chicken/3/libsvm_core.so ...
Error: (load) unable to load compiled module
"/home/cowboyneal/lib/chicken/3/libsvm_core.so"
"/home/cowboyneal/lib/libsvm.so.1: undefined symbol: __cxa_pure_virtual"
------------------

I dug around the Internet a bit and found it might be related
to libsupc++ so I edited the libsvm egg build to add it, see below.
(again I'm not an expert at this stuff).

I reran the setup (by untarring the egg and running chicken-setup) 
and got ..

------------------
address@hidden libsvm]$ chicken-setup
  /home/cowboyneal/bin/csc -feature compiling-extension -s -O2 libsvm_core.scm 
libsvm_core_wrap.c -lsvm -lsupc++ -I/usr/include/libsvm-2.0/libsvm
  /home/cowboyneal/bin/csc -feature compiling-extension -s -O2 libsvm.scm
  rm -fr /home/cowboyneal/lib/chicken/3/libsvm.so
  cp -r libsvm.so /home/cowboyneal/lib/chicken/3/libsvm.so
  chmod a+r /home/cowboyneal/lib/chicken/3/libsvm.so
  rm -fr /home/cowboyneal/lib/chicken/3/libsvm_core.so
  cp -r libsvm_core.so /home/cowboyneal/lib/chicken/3/libsvm_core.so
  chmod a+r /home/cowboyneal/lib/chicken/3/libsvm_core.so
  chmod a+r /home/cowboyneal/lib/chicken/3/libsvm.setup-info
------------------

All seemed well until I ran the test code ..
which ended with a SegFault.

------------------
address@hidden ~]$ csi svm.scm
CHICKEN
(c)2008 The Chicken Team
(c)2000-2007 Felix L. Winkelmann
Version 3.1.0 - linux-unix-gnu-x86      [ manyargs dload ptables applyhook ]
SVN rev. 10106  compiled 2008-05-20 on giliath (Linux)
; loading svm.scm ...
; loading /home/cowboyneal/lib/chicken/3/libsvm.so ...
; loading /home/cowboyneal/lib/chicken/3/libsvm_core.so ...
Segmentation fault
------------------

Looks like it's dying when loading the actual libsvm.so.1 ..
Did I mess up in building it?

> > g++ -fPIC -Wall -O3 -c svm.cpp
> > ld -shared -soname libsvm.so.1 -o libsvm.so.1.0 -lc svm.o
> > I then moved the .so into my ~/lib directory with appropriate
> > symbolic links ..
> > libsvm.so.1.0
> > libsvm.so.1 -> libsvm.so.1.0
> > libsvm.so -> libsvm.so.1.0
> > and ran ldconfig

Any thoughts appreciated ..

Tom



On Wednesday 28 May 2008 04:39, Daishi Kato wrote:
> Hi,
>
> I've updated the egg (v1.1), which hopefully works fine.
> Please give it a try.
>
> I've been testing against debian libsvm package.
> --daishi
>
> At Tue, 27 May 2008 12:50:13 -0700,
>
> Tom Poliquin wrote:
> > I'm trying to install the libsvm egg and not
> > having much success.
> >
> > The libsvm egg requires the libsvm library.
> >
> > I downloaded the only libsvm library I could find from
> > http://www.csie.ntu.edu.tw/~cjlin/libsvm/
> > (libsvm-2.86) which after installation only generates an svm.o.
> > I tried some older versions hoping to find one generating an 'so'
> > file but was unsuccessful.
> >
> > Undaunted, (and not an shared library expert) I did this ..
> > g++ -fPIC -Wall -O3 -c svm.cpp
> > ld -shared -soname libsvm.so.1 -o libsvm.so.1.0 -lc svm.o
> >
> > I then moved the .so into my ~/lib directory with appropriate
> > symbolic links ..
> > libsvm.so.1.0
> > libsvm.so.1 -> libsvm.so.1.0
> > libsvm.so -> libsvm.so.1.0
> > and ran ldconfig
> >
> > I then ran the egg install (I'm using
> > Chicken 3.1.0) and got ..
> >
> >   The extension libsvm does not exist.
> >   Do you want to download it ? (yes/no/abort) [yes] yes
> >   downloading libsvm.egg from (www.call-with-current-continuation.org
> > eggs/ 3 80) .
> >   gzip -d -c /tmp/chicken-setup-3-cowboyneal/downloads/libsvm.egg | tar
> > xf - /home/cowboyneal/bin/csc -feature compiling-extension -s -O2
> > libsvm.scm Warning: extension `libsvm_core' is currently not installed
> >   /home/cowboyneal/bin/csc
> >        -feature compiling-extension -s -O2 libsvm_core.scm l
> >   ibsvm_core_wrap.c -lsvm -I/usr/include/libsvm-2.0/libsvm
> >   Error: unbound variable: documentation
> >
> > Looks like I also need a libsvm_core.so .. I'm guessing I haven't
> > downloaded the right libsvm .. ?
> >
> > Any thoughts greatly appreciated,
> >
> > Tom
> >
> >
> >
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