Stricter MG_ARCH_CUSTOM and type conversions in sock.c

src/arch_unix.h

@@ -5,17 +5,30 @@
 #define _DARWIN_UNLIMITED_SELECT 1
 
 #include <arpa/inet.h>
+#include <ctype.h>
 #include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
 #include <inttypes.h>
+#include <limits.h>
 #include <netdb.h>
 #include <netinet/tcp.h>
 #include <signal.h>
+#include <stdarg.h>
 #include <stdbool.h>
+#include <stddef.h>
 #include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <sys/select.h>
 #include <sys/socket.h>
+#include <sys/stat.h>
 #include <sys/time.h>
+#include <sys/types.h>
+#include <time.h>
 #include <unistd.h>
+
 #define MG_DIRSEP '/'
 #define MG_ENABLE_POSIX 1
 #define MG_INT64_FMT "%" PRId64