compatibility issue with openmp

regression/xgboost_reg.h

@@ -8,9 +8,9 @@
 #include <cmath>
 #include <cstdlib>
 #include <cstring>
-#include <omp.h>
 #include "xgboost_reg_data.h"
 #include "xgboost_reg_eval.h"
+#include "../utils/xgboost_omp.h"
 #include "../booster/xgboost_gbmbase.h"
 #include "../utils/xgboost_utils.h"
 #include "../utils/xgboost_stream.h"

regression/xgboost_reg_eval.h

@@ -5,11 +5,12 @@
 * \brief evaluation metrics for regression and classification
 * \author Kailong Chen: chenkl198812@gmail.com, Tianqi Chen: tianqi.tchen@gmail.com
 */
-#include <omp.h>
+
 #include <cmath>
 #include <vector>
 #include <algorithm>
 #include "../utils/xgboost_utils.h"
+#include "../utils/xgboost_omp.h"
 
 namespace xgboost{
     namespace regression{