gui → auxiliary Relation

File in targets/gui	Includes file in auxiliary
gui_sdl2.c	ogl / ogl_api.h
gui_sdl2.c	util / u_git_tag.h
gui_sdl2_imgui.c	ogl / ogl_api.h
gui_sdl2_imgui.c	util / u_file.h
gui_sdl2_imgui.c	util / u_format.h
gui_sdl2_imgui.c	util / u_misc.h
gui_sdl2_imgui.c	util / u_sink.h
gui_sdl2_imgui.c	util / u_time.h
gui_sdl2_imgui.c	util / u_var.h
gui_sdl2_main.c	util / u_trace_marker.h
gui_sdl2_main.c	util / u_var.h