cmake: link examples with -Wl,--no-undefined

Author: madebr

CMakeLists.txt

@@ -552,6 +552,7 @@ if(SDLTTF_SAMPLES)
             add_executable(${TARGET} ${ARGN})
         endif()
         sdl_add_warning_options(${TARGET} WARNING_AS_ERROR ${SDLTTF_WERROR})
+        sdl_target_link_options_no_undefined(${TARGET})
         target_link_libraries(${TARGET} PRIVATE SDL3_ttf::${sdl3_ttf_target_name})
         target_link_libraries(${TARGET} PRIVATE ${sdl3_target_name})
         if("c_std_99" IN_LIST CMAKE_C_COMPILE_FEATURES)