+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "diff.h"
                usage(diff_cache_usage);
 
        git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
-       init_revisions(&rev, prefix);
+       repo_init_revisions(the_repository, &rev, prefix);
        rev.abbrev = 0;
        precompose_argv(argc, argv);