auto-detect changed prefix and/or changed build flags

diff --git a/pack.h b/pack.h
index 657deaa3f43ebe8627caa93798dd8ae5d956601d..694e0c56f0b67c1ae9b7a94a243aca7b8859e50c 100644 (file)
--- a/pack.h
+++ b/pack.h
@@ -21,6 +21,7 @@ enum object_type {
  */
 #define PACK_SIGNATURE 0x5041434b      /* "PACK" */
 #define PACK_VERSION 2
+#define pack_version_ok(v) ((v) == htonl(2) || (v) == htonl(3))
 struct pack_header {
        unsigned int hdr_signature;
        unsigned int hdr_version;
@@ -28,5 +29,7 @@ struct pack_header {
 };
 
 extern int verify_pack(struct packed_git *, int);
-
+extern int check_reuse_pack_delta(struct packed_git *, unsigned long,
+                                 unsigned char *, unsigned long *,
+                                 enum object_type *);
 #endif