Add CMake build files

src/codegen/CMakeLists.txt

@@ -0,0 +1,17 @@
+if(DYNAREC)
+	add_library(dynarec OBJECT codegen.c codegen_ops.c)
+
+	if(CMAKE_TARGET_ARCHITECTURES STREQUAL "i386")
+		target_sources(dynarec PRIVATE codegen_x86.c
+			codegen_accumulate_x86.c)
+	elseif(CMAKE_TARGET_ARCHITECTURES STREQUAL "x86_64")
+		target_sources(dynarec PRIVATE codegen_x86-64.c
+			codegen_accumulate_x86-64.c)
+	else()
+		message(SEND_ERROR 
+			"Dynarec is incompatible with target platform "
+			${CMAKE_TARGET_ARCHITECTURES})
+	endif()
+
+	target_link_libraries(86Box dynarec cgt)
+endif()