Index: geos/tools/geos-config.in
===================================================================
--- geos.orig/tools/geos-config.in	2012-02-21 23:31:52.000000000 +0100
+++ geos/tools/geos-config.in	2012-02-21 23:33:29.000000000 +0100
@@ -11,6 +11,7 @@
      [--prefix]
      [--version]
      [--libs]
+     [--clibs]
      [--cflags]
      [--ldflags]
      [--includes]
@@ -37,7 +38,10 @@
     echo -I${prefix}/include 
       ;;
     --libs)
-      echo -L${libdir} -lgeos
+      echo -L${libdir} -lgeos-@VERSION@
+      ;;
+    --clibs)
+      echo -L${libdir} -lgeos_c
       ;;
     --ldflags)
       echo -L${libdir}
