trouble installing octave (version 3.4.2) on ubuntu linux 11.04

[Dario Cardini]

Hi,
I would like to install the most recent version of octave in linux ubuntu (with the distribution comes an older version).
I downloaded the octave-3.4.2.tar.gz file, and I run the following command:

./configure --prefix=/tools/octave/local_3.4.2

from octave-3.4.2 directory.

I got the following error:

checking qhull/qhull_a.h usability... no
checking qhull/qhull_a.h presence... no
checking for qhull/qhull_a.h... no
configure: WARNING: Qhull library not found -- this will result in loss of functionality of some geometry functions.
checking whether pcre.h defines the macros we need... no
configure: error: to build Octave, you must have the PCRE library and header files installed

Nevertheless the PCRE library is installed. I can see it via synaptic.

For sake of completeness I send attached the complete log of configure command.

Any suggestion is welcome,
Kind Regards

Dario

config.log.gz
Description: GNU Zip compressed data