rtxray needs do.c to ouptut bw when going to files so signal it with RT_RAW_OUTPUT

src/rt/CMakeLists.txt

@@ -92,6 +92,7 @@ set_property(TARGET rtweight APPEND PROPERTY COMPILE_DEFINITIONS "RT_TXT_OUTPUT"
 
 brlcad_addexec(rtxray "${LIBRTUIF_SOURCES};viewxray.c" "${RT_STD_LIBS}" FOLDER Rt)
 target_include_directories(rtxray BEFORE PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
+set_property(TARGET rtxray APPEND PROPERTY COMPILE_DEFINITIONS "RT_RAW_OUTPUT")
 add_target_deps(rtxray dm_plugins)
 
 brlcad_addexec(rtdepth "${LIBRTUIF_SOURCES};viewdepth.c" "${RT_STD_LIBS}" FOLDER Rt)