> so I was trying to compile 6.0.1 mapserver with geos library 3.2 > it didn't work, it works though with the 3.3 On which platform? EL5 or EL6? In ELGIS5 we have MapServer 6.0.1 / GEOS 3.2 available In ELGIS6 we have MapServer 6.0.1 / GEOS 3.3 available what kind of errors do you have?