diff --git a/CMakeLists.txt b/CMakeLists.txt
index 382e3e1..9f876fa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.9)
 project(cgbwebcam)
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
@@ -43,3 +43,10 @@ include_directories(mgba/include)
 
 add_executable(cgbwebcam main.c)
 target_link_libraries(cgbwebcam SDL3-static mgba)
+
+include(CheckIPOSupported)
+check_ipo_supported(RESULT lto)
+
+if(lto)
+  set_property(TARGET cgbwebcam PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
+endif()
diff --git a/mingw.cmake b/mingw.cmake
new file mode 100644
index 0000000..3af31a0
--- /dev/null
+++ b/mingw.cmake
@@ -0,0 +1,17 @@
+# the name of the target operating system
+set(CMAKE_SYSTEM_NAME Windows)
+
+# which compilers to use for C and C++
+set(CMAKE_C_COMPILER   i686-w64-mingw32-gcc)
+set(CMAKE_CXX_COMPILER i686-w64-mingw32-g++)
+
+# where is the target environment located
+set(CMAKE_FIND_ROOT_PATH  /usr/i686-w64-mingw32)
+
+# adjust the default behavior of the FIND_XXX() commands:
+# search programs in the host environment
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+
+# search headers and libraries in the target environment
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)