add sfml lib

Makefile

@@ -1,5 +1,4 @@
 CXX      = g++
-CXXFLAGS = --std=c++11
 RM       = rm -r
 TAR      = tar -cf
 CP       = cp -r
@@ -10,6 +9,9 @@ INC_DIR = includes
 SOURCES = $(wildcard $(SRC_DIR)/*.cpp)
 OBJETS  = $(patsubst %.cpp,%.cpp.o,$(notdir $(SOURCES)))
 
+CXXFLAGS = --std=c++11
+LIBS     = -lsfml-graphics -lsfml-window -lsfml-system
+
 EXE     = projet
 EXE_EXT = out
 
@@ -28,7 +30,7 @@ dev: CXXFLAGS += -Wold-style-cast -Wsign-conversion
 dev: compilation
 
 compilation: $(OBJETS)
-	$(CXX) -o $(EXE).$(EXE_EXT) $(OBJETS)
+	$(CXX) -o $(EXE).$(EXE_EXT) $(OBJETS) $(LIBS)
 
 all:
 	main