--- a/hotspot/src/share/vm/runtime/vm_version.cpp	Fri Jul 26 00:59:18 2013 +0200
+++ b/hotspot/src/share/vm/runtime/vm_version.cpp	Thu Aug 22 09:39:54 2013 -0700
@@ -177,6 +177,7 @@
 #define OS       LINUX_ONLY("linux")             \
                  WINDOWS_ONLY("windows")         \
                  SOLARIS_ONLY("solaris")         \
+                 AIX_ONLY("aix")                 \
                  BSD_ONLY("bsd")
 
 #ifdef ZERO
@@ -237,6 +238,9 @@
       #endif
     #elif defined(__GNUC__)
         #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
+    #elif defined(__IBMCPP__)
+        #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__)
+
     #else
       #define HOTSPOT_BUILD_COMPILER "unknown compiler"
     #endif