Stricter MG_ARCH_CUSTOM and type conversions in sock.c

src/arch_freertos.h

@@ -1,6 +1,20 @@
 #pragma once
 
 #if MG_ARCH == MG_ARCH_FREERTOS
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <time.h>
+
 #include <FreeRTOS.h>
 
 #include <task.h>