Fix Octave with new versions of CMake.
@@ -1077,7 +1077,7 @@ function (tinyspline_add_swig_library)
endif()
if(${ARGS_CXX11})
set_property(TARGET ${ARGS_TARGET}
- APPEND PROPERTY CXX_STANDARD 11)
+ PROPERTY CXX_STANDARD 11)
set_property(TARGET ${ARGS_TARGET}
APPEND PROPERTY CXX_STANDARD_REQUIRED ON)
set_property(TARGET ${ARGS_TARGET}
