diff --git a/04_libraries_and_optimization/src/CMakeLists.txt b/04_libraries_and_optimization/src/CMakeLists.txt
new file mode 100644
index 0000000..bcb5193
--- /dev/null
+++ b/04_libraries_and_optimization/src/CMakeLists.txt
@@ -0,0 +1,12 @@
+cmake_minimum_required(VERSION 3.10)
+project(04_libraries)
+
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../bin)
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../lib)
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../lib)
+
+add_library(selectionSort sort.c)
+add_executable(app main.c)
+target_link_libraries(app selectionSort)
+
+add_compile_options(-Wall -Wextra -pedantic)