so i followed all the instuction:
SFML\include --> CodeBlocks\MINGW\include
SFML\lib --> CodeBlocks\MINGW\lib
Compiler and debugger menu, Global compiler settings / Search directories
added SFML\include
added SFML\lib
did the test code:
a few things make sure includes are under the compiler option and libs are included under the linker object. not both under compiler option. make sure these paths match where you put them. also you only need to add -lsfml-system command for this project. you dont need to define sfml_dynamic for this project if you follow their directions.
also you need the newer gcc compiler if your using the ming compiler that is default for code blocks. you can get it from the sfml page. i dont know if you did that part either. i followed the directs and all works for me. only problem i had was i had to drop a copy of sfml-system-d.dll into the projects debug bin directory where my debug exe resides.