message: Enable ccache in CMakeList
diff: @@ -21,6 +21,11 @@ set(CMAKE_VERBOSE_MAKEFILE OFF)
  set(CMAKE_POSITION_INDEPENDENT_CODE ON)
  set(CMAKE_MACOSX_RPATH 1)
  +find_program(CCACHE_PROGRAM ccache)
  +if(CCACHE_PROGRAM)
  + set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_PROGRAM}")
  +endif()
  +
  # Determine install paths
  set(INSTALL_LIB_DIR lib CACHE PATH "Installation directory for libraries")
  set(INSTALL_BIN_DIR bin CACHE PATH "Installation directory for executables")
  