Description: SHARED may be defined in sys/mman.h
 Better solution might be proper CFLAGS
Index: icon/src/h/xwin.h
===================================================================
--- icon.orig/src/h/xwin.h	2002-09-13 21:04:32.000000000 +0000
+++ icon/src/h/xwin.h	2013-01-28 05:41:14.988907554 +0000
@@ -74,6 +74,9 @@
 #define WMAXCOLORS	256
 #define MAXCOLORNAME	40
 #define MAXDISPLAYNAME	64
+#ifdef SHARED
+#undef SHARED
+#endif
 #define SHARED          0
 #define MUTABLE         1
 #define NUMCURSORSYMS	78