Problems loading packages

[Andrew Smith]

Hi,

Hoping someone can provide a little help loading Octave's image package. 

Used the instructions however coming up with the following error.

octave:1> pkg install -forge image
error: the following dependencies where unsatisfied:
   image needs signal >= 1.2.0

Attempted to load the signal package and

octave:1> pkg install -forge signal
error: the following dependencies where unsatisfied:
   signal needs specfun >= 0.0.0
 signal needs control >= 2.2.3
 signal needs general >= 1.3.2

then

octave:1> pkg install -forge general
make: /sw/bin/mkoctfile-3.6.4: No such file or directory
make: *** [SHA1.oct] Error 1
'make' returned the following error: /sw/bin/mkoctfile-3.6.4 SHA1.cc
error: called from 'pkg>configure_make' in file 
/sw/share/octave/3.6.4/m/pkg/pkg.m near line 1385, column 9
error: called from:
error:   /sw/share/octave/3.6.4/m/pkg/pkg.m at line 827, column 5
error:   /sw/share/octave/3.6.4/m/pkg/pkg.m at line 383, column 9

Any suggestions on how to proceed?
Andrew