updated FindCoin to be compatible with newer versions of ubuntu

git-svn-id: http://svn.code.sf.net/p/simox/code/trunk@490 042f3d55-54a8-47e9-b7fb-15903f145c44

CMakeModules/FindCoin3D.cmake

@@ -75,7 +75,7 @@ ELSE (WIN32)
   ELSE(APPLE)
 
     find_path( COIN3D_INCLUDE_DIRS NAMES Inventor/So.h PATHS $ENV{Coin3D_DIR}/include /usr/include /usr/local/include NO_DEFAULT_PATH )
-    find_library( COIN3D_LIBRARIES  NAMES Coin PATHS $ENV{Coin3D_DIR}/lib /usr/lib /usr/local/lib NO_DEFAULT_PATH )
+    find_library( COIN3D_LIBRARIES  NAMES Coin PATHS $ENV{Coin3D_DIR}/lib /usr/lib /usr/local/lib /usr/lib/x86_64-linux-gnu NO_DEFAULT_PATH )
 #FIND_PATH(COIN3D_INCLUDE_DIRS Inventor/So.h $ENV{COIN3D_DIR}/include)
 #FIND_LIBRARY(COIN3D_LIBRARIES Coin $ENV{COIN3D_DIR}/lib)