X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=boards%2Farduino%2Ftemplates%2Farduino_empty%2Fcfg%2Fcfg_lwip.h;h=73acb913534f4b4c33be90e72e0a8d99ea43e2db;hb=3e3d6d6bd05c91f80c49ea1b2f193e1835fddccb;hp=b6b55f65269d3df5bcc07c6073240abbb54a1d7c;hpb=19131a5ba427f686a90b1fa2be4311871ed5cbeb;p=bertos.git

diff --git a/boards/arduino/templates/arduino_empty/cfg/cfg_lwip.h b/boards/arduino/templates/arduino_empty/cfg/cfg_lwip.h
index b6b55f65..73acb913 100644
--- a/boards/arduino/templates/arduino_empty/cfg/cfg_lwip.h
+++ b/boards/arduino/templates/arduino_empty/cfg/cfg_lwip.h
@@ -1206,6 +1206,13 @@
  * $WIZ$ type = "boolean"
  */
 #define LWIP_SOCKET                     1
+#if LWIP_SOCKET
+	/*
+	 * The sockets.c file requires this macro to be defined to really
+	 * set errno on errors.
+	 */
+	#define ERRNO
+#endif
 
 /**
  * Enable BSD-style sockets functions names.