diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9d0c9cc..1c29054 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,42 +9,46 @@ enable_testing()
 set(MEMORYCHECK_COMMAND_OPTIONS "--error-exitcode=1 --leak-check=full")
 include(CTest)
 
+## use pkgconfig to solve SDL2 dependencies (Linux only)
+include(FindPkgConfig) # pkg-config --list-all  | grep -i sdl2
+pkg_search_module(SDL2 REQUIRED sdl2)
+pkg_search_module(SDL2_IMG REQUIRED SDL2_image)
+pkg_search_module(SDL2_TTF REQUIRED SDL2_ttf)
+set(SDL2_ALL_LIBS ${SDL2_LIBRARIES} ${SDL2_IMG_LIBRARIES} ${SDL2_TTF_LIBRARIES})
+set(SDL2_ALL_INC ${SDL2_INCLUDE_DIRS} ${SDL2_IMG_INCLUDE_DIRS} ${SDL2_TTF_INCLUDE_DIRS})
+
+## use a CMake3 package to solve SDL2 dependencies
+# find_package(SDL2 REQUIRED)
+# set(SDL2_ALL_INC ${SDL2_INCLUDE_DIRS})
+# set(SDL2_ALL_LIBS ${SDL2_LIBRARIES} -lSDL2_ttf -lSDL2_image) # add extra SDL2 libraries
+
+
+message(STATUS "SDL2 include dir: ${SDL2_ALL_INC}")
+message(STATUS "SDL2 all libraries: ${SDL2_ALL_LIBS}")
+
 #positionne la variable
 set(CMAKE_C_FLAGS "-std=c99 -Wall")
 set(CMAKE_C_FLAGS_DEBUG "-g --coverage  -pthread -Wextra -Wunused-parameter -Wpedantic -Werror")    # use CMake option: -DCMAKE_BUILD_TYPE=DEBUG
 set(CMAKE_C_FLAGS_RELEASE "-O3 -DNDEBUG")   # use CMake option: -DCMAKE_BUILD_TYPE=RELEASE
 
-## use a CMake3 package to solve SDL2 dependencies
-
-find_package(SDL2 REQUIRED)
-set(SDL2_ALL_INC ${SDL2_INCLUDE_DIRS})
-set(SDL2_ALL_LIBS ${SDL2_LIBRARIES} -lSDL2_ttf -lSDL2_image) # add extra SDL2 libraries
-
-## print this 
-message(STATUS "SDL2 include dir: ${SDL2_ALL_INC}")
-message(STATUS "SDL2 all libraries: ${SDL2_ALL_LIBS}")
+############################# SRC #############################
 
 # game_text
 add_executable(game_text game_text.c)
 target_link_libraries(game_text game)
 
-# game tests
+# game_tests
 add_executable(game_test game_test.c)
 target_link_libraries(game_test game)
 
-# game solve
+# game_solve
 add_executable(game_solve game_solve.c)
 target_link_libraries(game_solve game)
 
-# game model
+# game_sdl
 include_directories(${SDL2_ALL_INC})
-add_executable(model model.c)
-target_link_libraries(model game ${SDL2_ALL_LIBS} m)
-
-## copy useful data files in build dir for the SDL
-foreach(file "black.png")
-  file(COPY ${file} DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
-endforeach(file)
+add_executable(game_sdl main.c model.c)
+target_link_libraries(game_sdl game ${SDL2_ALL_LIBS} m)
 
 # libgame
 add_library (game game.c game_aux.c game_ext.c game_private.c history.c game_tools.c game_examples.c)
@@ -119,4 +123,4 @@ add_test(test_vcarmona_game_nb_solutions_v3 ./game_test game_nb_solutions)
 # add_test(test_history_last ./history_test history_last)
 # add_test(test_history_first ./history_test history_first)
 # add_test(test_history_append ./history_test history_append)
-# add_test(test_history_copy ./history_test history_copy)
\ No newline at end of file
+# add_test(test_history_copy ./history_test history_copy)