diff -ruN --exclude=CVS /usr/ports/devel/p5-EV/files/patch-libev-ev.c ./files/patch-libev-ev.c
--- /usr/ports/devel/p5-EV/files/patch-libev-ev.c       1970-01-01 03:00:00.000000000 +0300
+++ ./files/patch-libev-ev.c    2012-09-25 01:01:09.171491172 +0400
@@ -0,0 +1,11 @@
+--- libev/ev.c.orig    2012-09-24 16:04:11.033920205 +0400
++++ libev/ev.c 2012-09-24 15:45:30.093945530 +0400
+@@ -579,6 +579,8 @@
+       #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore |             #StoreStore")
+     #elif defined(__s390__) || defined(__s390x__)
+       #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("bcr 15,0" : : : "memory")
++    #elif defined(__ia64__)
++      #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("mf" : : : "memory")
+     #endif
+   #endif
+ #endif