--- a/mercurial/thirdparty/xdiff/xutils.c Sun Mar 04 00:07:04 2018 -0800
+++ b/mercurial/thirdparty/xdiff/xutils.c Sun Mar 04 00:17:49 2018 -0800
@@ -241,34 +241,3 @@
return 0;
}
-
-int xdl_fall_back_diff(xdfenv_t *diff_env, xpparam_t const *xpp,
- int line1, int count1, int line2, int count2)
-{
- /*
- * This probably does not work outside Git, since
- * we have a very simple mmfile structure.
- *
- * Note: ideally, we would reuse the prepared environment, but
- * the libxdiff interface does not (yet) allow for diffing only
- * ranges of lines instead of the whole files.
- */
- mmfile_t subfile1, subfile2;
- xdfenv_t env;
-
- subfile1.ptr = (char *)diff_env->xdf1.recs[line1 - 1]->ptr;
- subfile1.size = diff_env->xdf1.recs[line1 + count1 - 2]->ptr +
- diff_env->xdf1.recs[line1 + count1 - 2]->size - subfile1.ptr;
- subfile2.ptr = (char *)diff_env->xdf2.recs[line2 - 1]->ptr;
- subfile2.size = diff_env->xdf2.recs[line2 + count2 - 2]->ptr +
- diff_env->xdf2.recs[line2 + count2 - 2]->size - subfile2.ptr;
- if (xdl_do_diff(&subfile1, &subfile2, xpp, &env) < 0)
- return -1;
-
- memcpy(diff_env->xdf1.rchg + line1 - 1, env.xdf1.rchg, count1);
- memcpy(diff_env->xdf2.rchg + line2 - 1, env.xdf2.rchg, count2);
-
- xdl_free_env(&env);
-
- return 0;
-}