fixing linux builds

.gitignore

@@ -267,3 +267,4 @@ _Pvt_Extensions
 *.out
 *.app
 /windows/LightGBM.VC.db
+lightgbm

src/CMakeLists.txt

@@ -11,8 +11,9 @@ AUX_SOURCE_DIRECTORY(./metric/ METRIC_SRC)
 AUX_SOURCE_DIRECTORY(./objective/ OBJECTIVE_SRC) 
 AUX_SOURCE_DIRECTORY(./network/ NETWORK_SRC) 
 AUX_SOURCE_DIRECTORY(./treelearner/ TREELEARNER_SRC) 
+AUX_SOURCE_DIRECTORY(./util/ UTIL_SRC) 
 
-add_executable(lightgbm main.cpp ${APPLICATION_SRC} ${BOOSTING_SRC} ${IO_SRC} ${METRIC_SRC} ${OBJECTIVE_SRC} ${NETWORK_SRC} ${TREELEARNER_SRC})
+add_executable(lightgbm main.cpp ${APPLICATION_SRC} ${BOOSTING_SRC} ${IO_SRC} ${METRIC_SRC} ${OBJECTIVE_SRC} ${NETWORK_SRC} ${TREELEARNER_SRC} ${UTIL_SRC})
 
 if(USE_MPI)
   TARGET_LINK_LIBRARIES(lightgbm ${MPI_CXX_LIBRARIES})

src/boosting/gbdt.cpp

@@ -208,7 +208,7 @@ void GBDT::Train() {
                                      std::milli>(end_time - start_time) * 1e-3, iter + 1);
     if (is_early_stopping) {
         // close file with an early-stopping message
-        Log::Info("Early stopping at iteration %d, the best iteration round is %d\d", iter + 1, iter + 1 - early_stopping_round_);
+        Log::Info("Early stopping at iteration %d, the best iteration round is %d\n", iter + 1, iter + 1 - early_stopping_round_);
         fclose(output_model_file);
         return;
     }