readline problem on Mac Snow Leopard

[Elim Qiu <elim.qiu@gmail.com>]

I installed PARI on my mac snow leopard. But with no readline support:

 GP/PARI CALCULATOR Version 2.5.3 (released)
          i386 running darwin (x86-64/GMP-5.1.0 kernel) 64-bit version
            compiled: Jan 12 2013, gcc-4.2.1 (Apple Inc. build 5646)
               (readline not compiled in, extended help enabled)

I checked the output of configure script, it says

Hi-Res Graphics: X11
...Found libreadline in /usr/lib/
...Found readline header in /usr/include//readline
...Found history header in /usr/include//readline
...Found libncurses in /usr/lib/
...Library ncurses needed by readline
###
### Editline wrapper detected, building without readline support
###
### Building without GNU readline support


What should I do to compile readline into PARI?

Thanks