[R] readline, 64bit solaris build

[Prof Brian Ripley]

On Mon, 2 Aug 2004, roger koenker wrote:

> I've built a 64bit version of R 1.9.1 on a solaris 2.9 sparc system.  
> Everything
> seems quite functional, except that readline produces the following:
> 
> > configure:21277: checking for rl_callback_read_char in -lreadline
> > configure:21307: cc -xarch=v9 -o conftest -xO5 -xlibmil -dalign
> > -I/usr/local/include -L/us
> > r/local/lib conftest.c -lreadline  -ldl -ltermcap -lm  >&5
> > ld: warning: file /usr/local/lib/libreadline.a(callback.o): wrong ELF
> > class: ELFCLASS32
> > Undefined                       first referenced
> >  symbol                             in file
> > rl_callback_read_char               conftest.o
> > ld: fatal: Symbol referencing errors. No output written to conftest
> > configure:21313: $? = 1
> > configure: failed program was:
> > | /* confdefs.h.  */
> 
> in config.log...  do I interpret this correctly as a gentle suggestion
> that readline should be remade as a 64bit library?  Can this be done?

Yes, yes.  You need to build it with cc -xarch=v9 or gcc -m64: looks like 
I used the latter and probably there was a good reason.

> My
> (superficial)  look at the readline docs didn't offer any advice in this
> direction, nor did my googling produce any.
> 
> I realize that the real hidden message here is probably to accept
> that it is time to make the transition to ESS, but I'm still resisting 
> this,

Um, you need a 64-bit emacs with readline for a 64-bit ESS ....

> and hope that someone could suggest a way to get readline going.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595