SLD support on LINUX mapserver?

[Chris Tweedie]

Hi guys, we are having some severe problems trying to get mapserver to
consume the SLD paramater on our RH Linux install. We have compiled v4.4.2
to mirror our existing windows installs, everything works - except the SLD.

An example SLD getmap request, which works correctly on our windows install.

http://localhost/cgi-bin/mapserv?map=/path/to/the.map&service=WMS&version=1.0.0&request=GetMap&format=image/png&width=500&height=500&srs=EPSG:4283&layers=MRS,Cadastre,Roads,Contours,Spot-Heights,Control-Points,LGA&SLD=http://localhost/sld.xml&bbox=115.841231613,-31.9617279432,115.85460954,-31.9530975116

(Obviously, the paths to the map file and SLD have been modified, however
they are fully accessible by the server)

I have double checked all available list posts and documentation and i
havent been able to find any solutions. The linux install is seemingly
ignoring/refusing the SLD request and only outputting the map file
classifications (whereas the windows one is overriding the mapfile with the
SLD, as it should). I have cut down the SLD to a simple line colour and
submitted a single layer with the same result. There also appears to be no
associated errors popping up in the logs.

I am at a loss to what could be causing this. Any suggestions would be
appreciated guys.

Regards,