diff --git a/slirp/slirp.h b/slirp/slirp.h
index 79d9ecb58c..3a5d592fb9 100644
--- a/slirp/slirp.h
+++ b/slirp/slirp.h
@@ -7,10 +7,6 @@
 #ifdef _WIN32
 # include <inttypes.h>
 
-typedef uint8_t u_int8_t;
-typedef uint16_t u_int16_t;
-typedef uint32_t u_int32_t;
-typedef uint64_t u_int64_t;
 typedef char *caddr_t;
 
 # include <windows.h>
@@ -38,35 +34,6 @@ typedef char *caddr_t;
 
 #include <sys/time.h>
 
-#ifdef NEED_TYPEDEFS
-typedef char int8_t;
-typedef unsigned char u_int8_t;
-
-# if SIZEOF_SHORT == 2
-    typedef short int16_t;
-    typedef unsigned short u_int16_t;
-# else
-#  if SIZEOF_INT == 2
-    typedef int int16_t;
-    typedef unsigned int u_int16_t;
-#  else
-    #error Cannot find a type with sizeof() == 2
-#  endif
-# endif
-
-# if SIZEOF_SHORT == 4
-   typedef short int32_t;
-   typedef unsigned short u_int32_t;
-# else
-#  if SIZEOF_INT == 4
-    typedef int int32_t;
-    typedef unsigned int u_int32_t;
-#  else
-    #error Cannot find a type with sizeof() == 4
-#  endif
-# endif
-#endif /* NEED_TYPEDEFS */
-
 #ifdef HAVE_UNISTD_H
 # include <unistd.h>
 #endif