teach git-index-pack about deltas with offset to base

diff --git a/interpolate.c b/interpolate.c
index d82f1b51bbff4a545a2d5a0aebb91612cacd3d69..4570c123dce811bab8a89efe4c3b4a9a977e6c5a 100644 (file)
--- a/interpolate.c
+++ b/interpolate.c
@@ -25,10 +25,10 @@
  */
 
 int interpolate(char *result, int reslen,
-               char *orig,
-               struct interp *interps, int ninterps)
+               const char *orig,
+               const struct interp *interps, int ninterps)
 {
-       char *src = orig;
+       const char *src = orig;
        char *dest = result;
        int newlen = 0;
        char *name, *value;