make CMakeLists.txt compile on WIN32 Platform

CMakeLists.txt

@@ -58,9 +58,14 @@ set(RESOURCES
     src/shaders.qrc
     src/application.qrc
 )
-
+# normal platforms
 add_executable(SubWave ${SOURCES} ${HEADERS} ${RESOURCES})
 
+# For windows stupid ahh
+if(WIN32)
+    set_target_properties(SubWave PROPERTIES WIN32_EXECUTABLE TRUE)
+endif()
+
 target_include_directories(SubWave PRIVATE src src/engine)
 
 target_link_libraries(SubWave PRIVATE
@@ -71,10 +76,3 @@ target_link_libraries(SubWave PRIVATE
     PkgConfig::FFMPEG
     PkgConfig::FFTW
 )
-
-if(WIN32)
-    add_custom_command(TARGET SubWave POST_BUILD
-        COMMAND ${CMAKE_COMMAND} -E copy_if_different
-        "$<TARGET_FILE:PkgConfig::FFMPEG>" "$<TARGET_FILE_DIR:SubWave>"
-    )
-endif()