Duke3D: "make eduke32.exe RETAIL_MENU=1" fails

Introduced in r9468-73aac5b2

source/duke3d/src/menus.cpp: In function 'void Menu_Pre(MenuID_t)': source/duke3d/src/menus.cpp:2323:39: error: 'ME_SOUND_MIDIDRIVER' was not declared in this scope 2323 | MenuEntry_DisableOnCondition(&ME_SOUND_MIDIDRIVER, !ud.config.MusicToggle); | ^~~~~~~~~~~~~~~~~~~ Failed building obj/duke3d/menus.o from source/duke3d/src/menus.cpp! make: *** [GNUmakefile:964: obj/duke3d/menus.o] Error 1

menus-9486-patch.diff