-executable('flow', 'futatabi/flow_main.cpp', 'futatabi/flow.cpp', 'futatabi/gpu_timers.cpp', futatabi_shader_srcs, dependencies: [shareddep, epoxydep, sdl2dep, sdl2_imagedep])
+if sdl2dep.found() and sdl2_imagedep.found()
+ executable('flow', 'futatabi/flow_main.cpp', 'futatabi/flow.cpp', 'futatabi/gpu_timers.cpp', futatabi_shader_srcs, dependencies: [shareddep, epoxydep, sdl2dep, sdl2_imagedep])
+endif