Allow cloning to an existing empty directory

diff --git a/xdiff/xemit.c b/xdiff/xemit.c
index d3d9c845c6420e4881636d779c7029f900a0b067..05bfa41f102801a5182e7fc642976f91e9ba7db6 100644 (file)
--- a/xdiff/xemit.c
+++ b/xdiff/xemit.c
@@ -27,7 +27,6 @@
 
 static long xdl_get_rec(xdfile_t *xdf, long ri, char const **rec);
 static int xdl_emit_record(xdfile_t *xdf, long ri, char const *pre, xdemitcb_t *ecb);
-static xdchange_t *xdl_get_hunk(xdchange_t *xscr, xdemitconf_t const *xecfg);
 
 
 
@@ -58,11 +57,12 @@ static int xdl_emit_record(xdfile_t *xdf, long ri, char const *pre, xdemitcb_t *
  * Starting at the passed change atom, find the latest change atom to be included
  * inside the differential hunk according to the specified configuration.
  */
-static xdchange_t *xdl_get_hunk(xdchange_t *xscr, xdemitconf_t const *xecfg) {
+xdchange_t *xdl_get_hunk(xdchange_t *xscr, xdemitconf_t const *xecfg) {
        xdchange_t *xch, *xchp;
+       long max_common = 2 * xecfg->ctxlen + xecfg->interhunkctxlen;
 
        for (xchp = xscr, xch = xscr->next; xch; xchp = xch, xch = xch->next)
-               if (xch->i1 - (xchp->i1 + xchp->chg1) > 2 * xecfg->ctxlen)
+               if (xch->i1 - (xchp->i1 + xchp->chg1) > max_common)
                        break;
 
        return xchp;