gdb displays not all variables in KDevelop

Hoping, the image describes the issue much better than I can do. Generally, I'm debugging a multithreaded application in **KDevelop** with **gdb**. I'm debugging the app step by step (F11 shortcut) and have already passed, say, the initialization of the variable ***resp***. To the left of the screen is the list of all variables I'm able to see. I'm using **-g** option for **g++**, but I suspect I'm missing some other options for it. From my makefile: g++ -std=c++11 -g -ggdb -O example.cpp -I../libs -I$(BOOST_INCLUDES) -L$(BOOST_LIBS) -pthread -lboost_thread -lboost_system -o example So, basically, there are no problems with building the app. It is also running okay. Does anybody know why not all variables are displayed in the debugger?