Octave 3.4.0 does not detect my GraphicsMagick 1.3.12

[Andy Chee]

Hi all.
 
I'm trying to install Octave 3.4.0 but at the end of ./configure I get the 
following warning:
 
configure:54866: WARNING: GraphicsMagick++ library fails tests.  The imread 
function for reading image files will not be fully functional.

Looking through config.log I find the following:
 
configure:31204: $PKG_CONFIG --exists --print-errors "$magick++"
configure:31207: $? = 0
configure:31230: checking Magick++.h usability
configure:31230: g++ -c -g -O2 -I/usr/local/include/GraphicsMagick    
conftest.cpp >&5
configure:31230: $? = 0
configure:31230: result: yes
configure:31230: checking Magick++.h presence
configure:31230: g++ -E -I/usr/local/include/GraphicsMagick    conftest.cpp
configure:31230: $? = 0
configure:31230: result: yes
configure:31230: checking for Magick++.h
configure:31230: result: yes
configure:31233: checking for Magick::ColorRGB in Magick++.h
configure:31254: g++ -o conftest -g -O2 -I/usr/local/include/GraphicsMagick     
conftest.cpp -L/usr/local/lib   -lGraphicsMagick++ -lGraphicsMagick   -lm   >&5
/usr/local/lib/libGraphicsMagick.a(magick_libGraphicsMagick_la-image.o): In 
function `DisplayImages':
/home/chinsta/GraphicsMagick-1.3.12/magick/image.c:1265: undefined reference to 
`XOpenDisplay'
/home/chinsta/GraphicsMagick-1.3.12/magick/image.c:1268: undefined reference to 
`XSetErrorHandler'
/home/chinsta/GraphicsMagick-1.3.12/magick/image.c:1294: undefined reference to 
`XCloseDisplay'
/usr/local/lib/libGraphicsMagick.a(magick_libGraphicsMagick_la-image.o): In 
function `AnimateImages':
/home/chinsta/GraphicsMagick-1.3.12/magick/image.c:467: undefined reference to 
`XOpenDisplay'
/home/chinsta/GraphicsMagick-1.3.12/magick/image.c:470: undefined reference to 
`XSetErrorHandler'
/home/chinsta/GraphicsMagick-1.3.12/magick/image.c:478: undefined reference to 
`XCloseDisplay'
/usr/local/lib/libGraphicsMagick.a(magick_libGraphicsMagick_la-operator.o): In 
function `QuantumPowCB':
/home/chinsta/GraphicsMagick-1.3.12/magick/operator.c:1554: undefined reference 
to `GOMP_critical_name_start'
/home/chinsta/GraphicsMagick-1.3.12/magick/operator.c:1564: undefined reference 
to `GOMP_critical_name_end'
/home/chinsta/GraphicsMagick-1.3.12/magick/operator.c:1564: undefined reference 
to `GOMP_critical_name_end'
/usr/local/lib/libGraphicsMagick.a(magick_libGraphicsMagick_la-operator.o): In 
function `QuantumDepthCB':
/home/chinsta/GraphicsMagick-1.3.12/magick/operator.c:575: undefined reference 
to `GOMP_critical_name_start'
/home/chinsta/GraphicsMagick-1.3.12/magick/operator.c:585: undefined reference 
to `GOMP_critical_name_end'
/home/chinsta/GraphicsMagick-1.3.12/magick/operator.c:585: undefined reference 
to `GOMP_critical_name_end'

....and it continues like that for a while.
 
I assume it's a missing file, misplaced directory or something along those 
lines, but I need some help troubleshooting.
 
I had a look at the config.log of an older octave-3.2.4, but it looks like the 
magick checking routine is completely different (and successful too)
 
I did a search through the message archive for similar problems and there are 
references to a GraphicsMagick-devel.  But I can't find this on the 
www.graphicsmagick.org site, and the references I found were RPMs for Debian 
and SuSE.  I'm not sure whether this is what I need though (I'm using Slackware 
13.0)
 
If someone can give me an idea of where to go and what to do it would be much 
appreciated.
 
cheers
 
Andrew
 
PS. apart from not detecting GraphicsMagick, Octave 3.4 built cleanly, though I 
did struggle getting BLAS, ATLAS & LAPACK built and installed correctly 
beforehand (mainly because I don't know what I'm doing!)