file->cov_compiled = maybe_temp_file(ctx, "", keep, file->fullname);
if (!compile_and_link(ctx, file->fullname, ccan_dir,
obj_list(m, modobjs),
file->cov_compiled = maybe_temp_file(ctx, "", keep, file->fullname);
if (!compile_and_link(ctx, file->fullname, ccan_dir,
obj_list(m, modobjs),