fixup! examples: add POSIX socket example

RIOT-OS · Sep 22, 2015 · f15f9c3 · f15f9c3
1 parent c6e8d8b
commit f15f9c3
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/sys/posix/include/sys/bytes.h b/sys/posix/include/sys/bytes.h
@@ -37,7 +37,9 @@ extern "C" {
  * @return              The argument value converted from host to network byte
  *                      order.
  */
+#ifndef htonl
 #define htonl(hostlong)     HTONL(hostlong)
+#endif
 
 /**
  * @brief   Convert values between host and network byte order.
@@ -50,7 +52,9 @@ extern "C" {
  * @return              The argument value converted from host to network byte
  *                      order.
  */
+#ifndef htons
 #define htons(hostshort)    HTONS(hostshort)
+#endif
 
 /**
  * @brief   Convert values between host and network byte order.
@@ -63,7 +67,9 @@ extern "C" {
  * @return              The argument value converted from network to host byte
  *                      order.
  */
+#ifndef ntohl
 #define ntohl(netlong)      NTOHL(netlong)
+#endif
 
 /**
  * @brief   Convert values between host and network byte order.
@@ -76,7 +82,9 @@ extern "C" {
  * @return              The argument value converted from network to host byte
  *                      order.
  */
+#ifndef ntohs
 #define ntohs(netshort)     NTOHS(netshort)
+#endif
 
 typedef size_t socklen_t;           /**< socket address length */