Karim Belabas on Thu, 20 Apr 2006 14:01:41 +0200

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pari + readline on OS X

* Jean Cougnard on pari-dev [2006-01-18 16:59]:
[ http://pari.math.u-bordeaux.fr/archives/pari-dev-0601/msg00013.html ]
> I have tried to compile pari-2.1.7 on a mac OS 10.4 with Xcode2 (gcc 4.0.0)
> at the end I got the following error messages :
> ../src/gp/gp.c:48: error: conflicting types for 'add_history'
> /usr/include/readline/readline.h:133: error: previous declaration of
> 'add_history' was here
> make[1]: *** [gp.o] Error 1
> make: *** [install] Error 2
> I hoped to be more lucky with unstable pari-2.2.11 unfortunately the end was
[... doesn't work either ... ]

At the time, the solution to this Tiger-specific problem was to disable
'readline', as suggested in


This works, but disables line editing, command completion, history, etc.
In particular, pari-2.2.12 disables readline on Mac OS X.4, which is really

There is a generic solution to this problem, namely installing 'readline'
yourself. But it turned out this does not work on OS X.4 due to a few bugs
on Apple's side [ nothing PARI can do about it ].

With the dedicated help of Vincent Lefevre and Gerald Tenenbaum,
we found a relatively simple solution, which fixes the system once and for
all (with respect to the readline problem). A detailed explanation and
step-by-step solution can be found in a new FAQ entry




P.S: Any suggestions for the FAQ ?
Karim Belabas                  Tel: (+33) (0)5 40 00 26 17
Universite Bordeaux 1          Fax: (+33) (0)5 40 00 69 50
351, cours de la Liberation    http://www.math.u-bordeaux.fr/~belabas/
F-33405 Talence (France)       http://pari.math.u-bordeaux.fr/  [PARI/GP]