add HC_FEATURE_PRINTF around the printf buffer definition

hipamd/src/hip_module.cpp

@@ -259,10 +259,12 @@ hipError_t hipModuleLoad(hipModule_t *module, const char *fname){
             status = hsa_executable_create(HSA_PROFILE_FULL, HSA_EXECUTABLE_STATE_UNFROZEN, NULL, &(*module)->executable);
             CHECKLOG_HSA(status, hipErrorNotInitialized);
 
+#ifdef HC_FEATURE_PRINTF
             status = hsa_executable_agent_global_variable_define((*module)->executable, agent,
                                                                  "_ZN2hc13printf_bufferE",
                                                                  Kalmar::getContext()->getPrintfBufferPointerVA());
             CHECKLOG_HSA(status, hipErrorNotInitialized);
+#endif
 
             status = hsa_executable_load_code_object((*module)->executable, agent, (*module)->object, NULL);
             CHECKLOG_HSA(status, hipErrorNotInitialized);