Index: src/platform.h
==================================================================
--- src/platform.h
+++ src/platform.h
@@ -68,10 +68,12 @@
 #elif defined(__sparc__) && !defined(__arch64__)
 # define OF_SPARC
 #elif defined(__hppa__) || defined(__HPPA__) || \
     defined(_PA_RISC1_0) || defined(_PA_RISC1_1)
 # define OF_PA_RISC
+#elif defined(__ia64__) || defined(__IA64__)
+# define OF_ITANIUM
 #endif
 
 #if defined(__APPLE__)
 # include <TargetConditionals.h>
 # if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE