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gDistance problem on RHEL 6 64-bit

On Thu, 5 Feb 2015, Hollister, Jeff wrote:

            
The key question is how you installed rgeos and GEOS on these platforms. 
Most likely rgeos on Windows 7 is the CRAN binary statically linked to 
GEOS, and on RHEL6 and Ubuntu 14.04 rgeos is installed from source and 
links to the GEOS found on those platforms. We need the output of:

version_GEOS()

on each platform. Most likely you've not installed GEOS from source on 
either of the two Linux platforms. The cause is most likely a mismatch on 
the RHEL platform, possibly that GEOS has fallen behind C++, or that GEOS 
got updated without you re-installing rgeos. Is gDistance() the only 
function that doesn't work - can you run example(gDistance) and/or the 
examples of other functions?

Roger