All symbols starting with `f' in src/od-macos

• filesys_vRefNum src/od-macos/mac.c:52
• flush_block src/od-macos/mac.c:370
• flush_line src/od-macos/mac.c:440
• flush_screen src/od-macos/mac.c:326
• flush_sound_buffer src/od-macos/sound.h:23