c++ - How do I set up the linking order in code blocks? -

i tried run program on opencv got following error:

test_1.cpp:(.text+0x44): undefined reference `cv::imread(std::basic_string<char,     std::char_traits<char>, std::allocator<char> > const&, int)' 

i learnt order of sources , libraries on link line matters

so, running g++ -o test_1 test_1.cpppkg-config opencv --cflags --libs works.

however, how can setup code blocks when build code, applies correct order?