prevent installation of examples in /usr/bin
all files from examples are 'RUNTIME', no lib
--- a/doc/examples/CMakeLists.txt
+++ b/doc/examples/CMakeLists.txt
@@ -7,7 +7,7 @@
   add_executable(${example} ${example}.cpp)
   target_link_libraries(${example} ${BABEL_LIBRARY})
   install(TARGETS ${example}
-    RUNTIME DESTINATION bin
+    RUNTIME DESTINATION ${CMAKE_INSTALL_DOCDIR}/examples
     LIBRARY DESTINATION lib
     ARCHIVE DESTINATION lib
   )