check if GEOS is sufficiently new

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@38638 15284696-431f-4ddb-bdfa-cd5b030d7da7

configure.in

@@ -761,7 +761,7 @@ else
   fi
   
   LOC_CHECK_INCLUDES(geos_c.h,GEOS,$GEOS_CFLAGS)
-
+  LOC_CHECK_LIBS(geos,GEOSGeom_createLinearRing,GEOS,$GEOS_LIBS,GEOS_LIBS)
   AC_DEFINE(HAVE_GEOS)
 fi