diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4e96107..1fcfcb4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,15 +1,15 @@
 cmake_minimum_required(VERSION "3.5" FATAL_ERROR)
 project(Lesson10 LANGUAGES CXX)
 
-set(CMAKE_CXX_STANDARD 98)
-
 find_package(SDL3 REQUIRED CONFIG)
 find_package(OpenGL REQUIRED)
 
 add_executable(Lesson10 Lesson10.cpp)
-set_property(TARGET Lesson10 PROPERTY CXX_STANDARD 98)
-target_link_libraries(Lesson10 SDL3::SDL3 OpenGL::GL)
-target_compile_options(Lesson10 PRIVATE -Wall -Wextra -pedantic)
+set_target_properties(Lesson10 PROPERTIES
+	CXX_STANDARD 98
+	WIN32_EXECUTABLE ON)
+target_link_libraries(Lesson10 SDL3::SDL3 OpenGL::GL OpenGL::GLU)
+target_compile_options(Lesson10 PRIVATE $<$<CXX_COMPILER_ID:GNU>:-Wall -Wextra -pedantic>)
 
 if (CMAKE_SYSTEM_NAME STREQUAL "Darwin")
 	get_property(SDL3_IMPORTED_LOCATION TARGET SDL3::SDL3 PROPERTY IMPORTED_LOCATION)
diff --git a/Lesson10.cpp b/Lesson10.cpp
index ef944dc..6078e6f 100644
--- a/Lesson10.cpp
+++ b/Lesson10.cpp
@@ -8,6 +8,7 @@
 
 #include <math.h>					// Math Library Header File
 #include <stdio.h>					// Header File For Standard Input/Output
+#include <stdlib.h>
 #include <SDL.h>
 #include <SDL_main.h>
 #include <SDL_opengl.h>				// Header File For The OpenGL32 Library