Remove unused variables

Noticed by gcc 4.6.0.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

builtin/fsck.c

@@ -140,11 +140,10 @@ static int traverse_reachable(void)
 	int result = 0;
 	while (pending.nr) {
 		struct object_array_entry *entry;
-		struct object *obj, *parent;
+		struct object *obj;
 
 		entry = pending.objects + --pending.nr;
 		obj = entry->item;
-		parent = (struct object *) entry->name;
 		result |= traverse_one_object(obj);
 	}
 	return !!result;

builtin/remote-ext.c

@@ -30,16 +30,12 @@ static char *strip_escapes(const char *str, const char *service,
 	size_t rpos = 0;
 	int escape = 0;
 	char special = 0;
-	size_t pslen = 0;
-	size_t pSlen = 0;
 	size_t psoff = 0;
 	struct strbuf ret = STRBUF_INIT;
 
 	/* Calculate prefix length for \s and lengths for \s and \S */
 	if (!strncmp(service, "git-", 4))
 		psoff = 4;
-	pSlen = strlen(service);
-	pslen = pSlen - psoff;
 
 	/* Pass the service to command. */
 	setenv("GIT_EXT_SERVICE", service, 1);

diff.c

@@ -1235,7 +1235,7 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
 	uintmax_t max_change = 0, max_len = 0;
 	int total_files = data->nr;
 	int width, name_width;
-	const char *reset, *set, *add_c, *del_c;
+	const char *reset, *add_c, *del_c;
 	const char *line_prefix = "";
 	struct strbuf *msg = NULL;
 
@@ -1262,7 +1262,6 @@ static void show_stats(struct diffstat_t *data, struct diff_options *options)
 
 	/* Find the longest filename and max number of changes */
 	reset = diff_get_color_opt(options, DIFF_RESET);
-	set   = diff_get_color_opt(options, DIFF_PLAIN);
 	add_c = diff_get_color_opt(options, DIFF_FILE_NEW);
 	del_c = diff_get_color_opt(options, DIFF_FILE_OLD);
 

merge-recursive.c

@@ -366,7 +366,6 @@ static void make_room_for_directories_of_df_conflicts(struct merge_options *o,
 	 */
 	const char *last_file = NULL;
 	int last_len = 0;
-	struct stage_data *last_e;
 	int i;
 
 	for (i = 0; i < entries->nr; i++) {
@@ -396,7 +395,6 @@ static void make_room_for_directories_of_df_conflicts(struct merge_options *o,
 		if (S_ISREG(e->stages[2].mode) || S_ISLNK(e->stages[2].mode)) {
 			last_file = path;
 			last_len = len;
-			last_e = e;
 		} else {
 			last_file = NULL;
 		}
@@ -971,7 +969,6 @@ static int process_renames(struct merge_options *o,
 	}
 
 	for (i = 0, j = 0; i < a_renames->nr || j < b_renames->nr;) {
-		char *src;
 		struct string_list *renames1, *renames2Dst;
 		struct rename *ren1 = NULL, *ren2 = NULL;
 		const char *branch1, *branch2;
@@ -1006,7 +1003,6 @@ static int process_renames(struct merge_options *o,
 			ren2 = ren1;
 			ren1 = tmp;
 		}
-		src = ren1->pair->one->path;
 
 		ren1->dst_entry->processed = 1;
 		ren1->src_entry->processed = 1;

reachable.c

@@ -70,16 +70,11 @@ static void process_tree(struct tree *tree,
 static void process_tag(struct tag *tag, struct object_array *p, const char *name)
 {
 	struct object *obj = &tag->object;
-	struct name_path me;
 
 	if (obj->flags & SEEN)
 		return;
 	obj->flags |= SEEN;
 
-	me.up = NULL;
-	me.elem = "tag:/";
-	me.elem_len = 5;
-
 	if (parse_tag(tag) < 0)
 		die("bad tag object %s", sha1_to_hex(obj->sha1));
 	if (tag->tagged)

test-subprocess.c

@@ -3,11 +3,10 @@
 
 int main(int argc, char **argv)
 {
-	const char *prefix;
 	struct child_process cp;
 	int nogit = 0;
 
-	prefix = setup_git_directory_gently(&nogit);
+	setup_git_directory_gently(&nogit);
 	if (nogit)
 		die("No git repo found");
 	if (!strcmp(argv[1], "--setup-work-tree")) {

transport-helper.c

@@ -562,10 +562,9 @@ static int push_refs_with_push(struct transport *transport,
 	int mirror = flags & TRANSPORT_PUSH_MIRROR;
 	struct helper_data *data = transport->data;
 	struct strbuf buf = STRBUF_INIT;
-	struct child_process *helper;
 	struct ref *ref;
 
-	helper = get_helper(transport);
+	get_helper(transport);
 	if (!data->push)
 		return 1;