diff --git a/builder/family/realtek-ambz2.py b/builder/family/realtek-ambz2.py
index 5e9b3ed..53a933b 100644
--- a/builder/family/realtek-ambz2.py
+++ b/builder/family/realtek-ambz2.py
@@ -222,9 +222,11 @@ queue.AddLibrary(
             "-Wno-parentheses",
             "-Wno-implicit-function-declaration",
             "-Wno-misleading-indentation",
-            # TODO remove this; only for example_wlan_fast_connect.c
+            "-Wno-unused-value",
+            # TODO remove this; only for example_wlan_fast_connect.c and at_cmd/*
             "-Wno-format-truncation",
             "-Wno-return-type",
+            "-Wno-unused-variable",
         ],
     ),
 )
diff --git a/cores/common/base/compat/udp.h b/cores/common/base/compat/udp.h
index 70524e9..280996b 100644
--- a/cores/common/base/compat/udp.h
+++ b/cores/common/base/compat/udp.h
@@ -7,4 +7,5 @@
 // this is included only by wifi_simple_config.c
 // which uses lwip_ntohl without parentheses
 // so the #define from lwip/def.h doesn't work
+#undef lwip_ntohl
 #define lwip_ntohl lwip_htonl
diff --git a/cores/common/base/lt_common_api.c b/cores/common/base/lt_common_api.c
index 54a83e6..d73ca0c 100644
--- a/cores/common/base/lt_common_api.c
+++ b/cores/common/base/lt_common_api.c
@@ -33,7 +33,7 @@ void hexdump(const uint8_t *buf, size_t len, uint32_t offset, uint8_t width) {
 	uint16_t pos = 0;
 	while (pos < len) {
 		// print hex offset
-		printf("%06x ", offset + pos);
+		printf("%06lx ", offset + pos);
 		// calculate current line width
 		uint8_t lineWidth = MIN(width, len - pos);
 		// print hexadecimal representation
diff --git a/cores/common/base/lt_logger.c b/cores/common/base/lt_logger.c
index 795a125..8678ead 100644
--- a/cores/common/base/lt_logger.c
+++ b/cores/common/base/lt_logger.c
@@ -1,9 +1,7 @@
 /* Copyright (c) Kuba Szczodrzyński 2022-04-28. */
 
 #include "lt_logger.h"
-
-#include <stdarg.h>
-#include <stdint.h>
+#include <sdk_private.h>
 
 #if LT_HAS_PRINTF
 #include <printf/printf.h>
diff --git a/cores/realtek-amb/base/port/fal_flash_ambz_port.c b/cores/realtek-amb/base/port/fal_flash_ambz_port.c
index 951d2ba..3e5b7f3 100644
--- a/cores/realtek-amb/base/port/fal_flash_ambz_port.c
+++ b/cores/realtek-amb/base/port/fal_flash_ambz_port.c
@@ -17,7 +17,7 @@ static int read(long offset, uint8_t *buf, size_t size) {
 }
 
 static int write(long offset, const uint8_t *buf, size_t size) {
-	return size * flash_stream_write(NULL, offset, size, buf);
+	return size * flash_stream_write(NULL, offset, size, (uint8_t *)buf);
 }
 
 static int erase(long offset, size_t size) {
diff --git a/cores/realtek-amb/base/port/printf.c b/cores/realtek-amb/base/port/printf.c
index 7217451..f6112e1 100644
--- a/cores/realtek-amb/base/port/printf.c
+++ b/cores/realtek-amb/base/port/printf.c
@@ -12,10 +12,10 @@
 extern uint32_t UART_Writable(void *UARTx);
 extern void UART_CharPut(void *UARTx, uint8_t TxData);
 
-static const void *uart_dev[3] = {
-	UART0_REG_BASE,
-	UART1_REG_BASE,
-	LOG_UART_REG_BASE,
+static void *uart_dev[3] = {
+	(void *)UART0_REG_BASE,
+	(void *)UART1_REG_BASE,
+	(void *)LOG_UART_REG_BASE,
 };
 
 uint8_t lt_uart_port = 2;
diff --git a/cores/realtek-amb/base/sdk_private.h b/cores/realtek-amb/base/sdk_private.h
index f582d4a..2164233 100644
--- a/cores/realtek-amb/base/sdk_private.h
+++ b/cores/realtek-amb/base/sdk_private.h
@@ -13,6 +13,8 @@ extern "C" {
 #define boolean boolean_rtl
 // fix conflicts with Arduino's PinMode enum
 #define PinMode PinModeRTL
+// remove log_printf() if included before sdk_private.h
+#undef log_printf
 
 #include <strproc.h> // define string macros first
 #undef isdigit		 // then remove them, as they conflict