[CMake] workaround boost bind warnings

CMakeLists.txt

@@ -37,6 +37,12 @@ IF(BUILD_TESTING)
   FIND_PACKAGE(Boost REQUIRED COMPONENTS unit_test_framework)
 ENDIF(BUILD_TESTING)
 
+IF(Boost_VERSION GREATER 107299 OR Boost_VERSION_MACRO GREATER 107299)
+  # Silence a warning about a deprecated use of boost bind by boost >= 1.73
+  # without dropping support for boost < 1.73
+  ADD_DEFINITIONS(-DBOOST_BIND_GLOBAL_PLACEHOLDERS)
+ENDIF()
+
 # Main Library
 SET(${PROJECT_NAME}_HEADERS
   include/${CUSTOM_HEADER_DIR}/api.hh