thodg/libgit2

diff --git a/src/describe.c b/src/describe.c
index fb39c58..2640c1c 100644
--- a/src/describe.c
+++ b/src/describe.c
@@ -571,8 +571,6 @@ static int describe(
 		}
 	}
 
-	best = (struct possible_tag *)git_vector_get(&all_matches, 0);
-
 	git_vector_sort(&all_matches);
 
 	best = (struct possible_tag *)git_vector_get(&all_matches, 0);
diff --git a/src/diff_tform.c b/src/diff_tform.c
index 9ebce06..d576317 100644
--- a/src/diff_tform.c
+++ b/src/diff_tform.c
@@ -949,8 +949,6 @@ find_best_matches:
 	 * Rewrite the diffs with renames / copies
 	 */
 
-	tried_tgts = 0;
-
 	git_vector_foreach(&diff->deltas, t, tgt) {
 		/* skip things that are not rename targets */
 		if ((tgt->flags & GIT_DIFF_FLAG__IS_RENAME_TARGET) == 0)
diff --git a/src/oid.c b/src/oid.c
index 969931d..5d29200 100644
--- a/src/oid.c
+++ b/src/oid.c
@@ -211,7 +211,7 @@ int git_oid_ncmp(const git_oid *oid_a, const git_oid *oid_b, size_t len)
 
 int git_oid_strcmp(const git_oid *oid_a, const char *str)
 {
-	const unsigned char *a = oid_a->id;
+	const unsigned char *a;
 	unsigned char strval;
 	int hexval;
 
diff --git a/src/pack.c b/src/pack.c
index 516e0f3..7903238 100644
--- a/src/pack.c
+++ b/src/pack.c
@@ -1105,7 +1105,6 @@ int git_packfile_alloc(struct git_pack_file **pack_out, const char *path)
 			p->pack_keep = 1;
 
 		memcpy(p->pack_name + root_len, ".pack", sizeof(".pack"));
-		path_len = path_len - strlen(".idx") + strlen(".pack");
 	}
 
 	if (p_stat(p->pack_name, &st) < 0 || !S_ISREG(st.st_mode)) {