diff -ru Ice-3.4.0.orig/cpp/config/Make.rules.Darwin Ice-3.4.0/cpp/config/Make.rules.Darwin
--- Ice-3.4.0.orig/cpp/config/Make.rules.Darwin	2010-02-25 07:55:41.000000000 -0800
+++ Ice-3.4.0/cpp/config/Make.rules.Darwin	2010-05-18 10:43:17.000000000 -0700
@@ -11,7 +11,7 @@
 # This file is included by Make.rules when uname is Darwin.
 #
 
-CXX	                = c++
+CXX	               ?= c++
 
 CXXFLAGS		= -Wall -D_REENTRANT
 
@@ -88,4 +88,4 @@
 ICEUTIL_OS_LIBS         = -lpthread
 ICE_OS_LIBS             = -ldl
 
-PLATFORM_HAS_READLINE   := no
+PLATFORM_HAS_READLINE   := yes
