diff --git a/Makefile b/Makefile
index c301385..e54234a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,10 @@
+
+ifeq ($(ya_pidor),true)
+CXXFLAGS += -DYA_PIDOR
+endif
+
+
+
 # -fsanitize=undefined
 CXXFLAGS += -std=c++11 -O3 -Wall -Wextra -I/usr/include/rados -I/usr/include/jsoncpp
 #-Wa,-adhln -g
diff --git a/main.cpp b/main.cpp
index a9b8007..d918c86 100644
--- a/main.cpp
+++ b/main.cpp
@@ -13,6 +13,7 @@
 #endif
 #include <thread>
 #include <vector>
+#include <system_error>
 
 // TODO: RMOVE IT !
 #include <json/json.h>