diff --git a/ChangeLog b/ChangeLog
index dfdbb20ba..b5ffa0d5c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2007-06-03  Richard Frith-Macdonald <rfm@gnu.org>
+
+	* Source/GSHTTPURLHandle.m: define MSG_DONTWAIT as zero if it's not
+	defined ... it should not be needed anyway if the socket is already
+	non-blocking.
+
 2007-06-03  Richard Frith-Macdonald <rfm@gnu.org>
 
 	* Source/win32/GSFileHandleWin32.m: Clean up indentation issues etc.
diff --git a/Source/GSHTTPURLHandle.m b/Source/GSHTTPURLHandle.m
index 7d9851587..0e3cd9f8e 100644
--- a/Source/GSHTTPURLHandle.m
+++ b/Source/GSHTTPURLHandle.m
@@ -1281,6 +1281,9 @@ static void debugWrite(GSHTTPURLHandle *handle, NSData *data)
 	  int		result;
 	  unsigned char	c;
 
+#if     !defined(MSG_DONTWAIT)
+#define MSG_DONTWAIT    0
+#endif
 	  result = recv(fd, &c, 1, MSG_PEEK | MSG_DONTWAIT);
 	  if (result == 0 || (result < 0 && errno != EAGAIN && errno != EINTR))
 	    {