All symbols starting with `u' in windoom

• undefined src/doomdef.h:75
• up src/p_pspr.c:277
• updates src/doomdef.h:123
• use src/doomdef.h:64
• used src/s_sound.c:114
• usegamma src/v_video.c:140
• usejoystick src/dconsole.c:142
• usemouse src/dconsole.c:133
• using src/p_spec.c:482