Fix build breakage....for some reason it suddennly started having problems with LINEBREAK. I added a defintion here...although

it is also defined in nsMsgLinebuffer.cpp....seems like we want to find a generic place for this.

mailnews/local/src/nsPop3Sink.cpp

@@ -17,7 +17,6 @@
  */
 
 #include "msgCore.h"    // precompiled header...
-
 #include "nsPop3Sink.h"
 #include "prprf.h"
 #include "prlog.h"
@@ -25,6 +24,20 @@
 #include <stdio.h>
 #include <time.h>
 
+#ifdef XP_MAC
+#  define LINEBREAK             "\015"
+#  define LINEBREAK_LEN 1
+#else
+#  ifdef XP_WIN
+#    define LINEBREAK           "\015\012"
+#    define LINEBREAK_LEN       2
+#  else
+#    ifdef XP_UNIX
+#      define LINEBREAK         "\012"
+#      define LINEBREAK_LEN     1
+#    endif /* XP_UNIX */
+#  endif /* XP_WIN */
+#endif /* XP_MAC */
 
 static NS_DEFINE_IID(kIPop3SinkIID, NS_IPOP3SINK_IID);