From d55401d3fc693ec44fda7f9e97f12885e1c667bf Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@midokura.com>
Date: Thu, 2 Apr 2020 01:29:19 +0900
Subject: [PATCH] examples/udp: Avoid conflicts with host OS definitions

---
 examples/udp/udp.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/examples/udp/udp.h b/examples/udp/udp.h
index f18db12f1..5956ab975 100644
--- a/examples/udp/udp.h
+++ b/examples/udp/udp.h
@@ -55,14 +55,18 @@
 /* HTONS/L macros are unique to uIP-based networks */
 
 #  ifdef CONFIG_ENDIAN_BIG
+#    undef HTONS
 #    define HTONS(ns) (ns)
+#    undef HTONL
 #    define HTONL(nl) (nl)
 #  else
+#    undef HTONS
 #    define HTONS(ns) \
        (unsigned short) \
          (((((unsigned short)(ns)) & 0x00ff) << 8) | \
          ((((unsigned short)(ns)) >> 8) & 0x00ff))
-#      define HTONL(nl) \
+#    undef HTONL
+#    define HTONL(nl) \
        (unsigned long) \
          (((((unsigned long)(nl)) & 0x000000ffUL) << 24) | \
          ((((unsigned long)(nl)) & 0x0000ff00UL) <<  8) | \
@@ -70,7 +74,9 @@
          ((((unsigned long)(nl)) & 0xff000000UL) >> 24))
 #  endif
 
+#  undef NTOHS
 #  define NTOHS(hs) HTONS(hs)
+#  undef NTOHL
 #  define NTOHL(hl) HTONL(hl)
 #  define FAR
 #endif