From a5899f7d3ade7dad5ead6bb5ee4958cdf64e6481 Mon Sep 17 00:00:00 2001
From: David CARLIER <devnexen@gmail.com>
Date: Sun, 17 Mar 2019 09:54:18 +0000
Subject: [PATCH] Little warning cleanups (#13398)

---
 libr/anal/op.c           | 1 -
 libr/bin/p/bin_mach064.c | 2 +-
 libr/util/ctype.c        | 2 +-
 3 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/libr/anal/op.c b/libr/anal/op.c
index 6a8b3a4d78..fddf338e31 100644
--- a/libr/anal/op.c
+++ b/libr/anal/op.c
@@ -766,7 +766,6 @@ R_API int r_anal_op_reg_delta(RAnal *anal, ut64 addr, const char *name) {
 	ut8 buf[32];
 	anal->iob.read_at (anal->iob.io, addr, buf, sizeof (buf));
 	RAnalOp op = { 0 };
-	ut64 ret = UT64_MAX;
 	if (r_anal_op (anal, &op, addr, buf, sizeof (buf), R_ANAL_OP_MASK_ALL) > 0) {
 		if (op.dst && op.dst->reg && op.dst->reg->name && (!name || !strcmp (op.dst->reg->name, name))) {
 			if (op.src[0]) {
diff --git a/libr/bin/p/bin_mach064.c b/libr/bin/p/bin_mach064.c
index 6291c4ee47..875537ef6c 100644
--- a/libr/bin/p/bin_mach064.c
+++ b/libr/bin/p/bin_mach064.c
@@ -19,7 +19,7 @@ static bool check_bytes(const ut8 *buf, ut64 length) {
 				int i;
 				for (i = 0; i < 4; i++) {
 					const ut8 *needle = (const ut8 *) features[i];
-					if (!r_mem_mem (buf, 4096, needle, strlen (needle))) {
+					if (!r_mem_mem (buf, 4096, needle, strlen ((char *)needle))) {
 						break;
 					}
 				}
diff --git a/libr/util/ctype.c b/libr/util/ctype.c
index a617ae0ffa..60582b4fcf 100644
--- a/libr/util/ctype.c
+++ b/libr/util/ctype.c
@@ -554,7 +554,7 @@ R_API R_OWN char *r_type_func_guess(Sdb *TDB, R_NONNULL char *func_name) {
 	int offset = 0;
 	char *str = func_name;
 	char *result = NULL;
-	char *first, *last;
+	char *first;
 	r_return_val_if_fail (TDB, false);
 	r_return_val_if_fail (func_name, false);