im_image(), im_system(),
im_version*(), im_blend(), im_copy_set(),
im_flood_blob(), im_icc_*(), im_open_local_array(),
im_header_*(), im_sign(), im_ceil(),
im_floor(),
im_remainderconst*(), im_print(), im_guess_prefix(),
im_remosaic(), im_invertlut(), Yxy funcs, color temperature
funcs, im_clip2fmt(), im_blend(), im_lab_morph(),
im_histnorm(), im_histcum(), im_video_v4l()
#define names, old names can be turned off
with -DIM_NO_VIPS7_COMPAT