[R] Another question about getting command history

[Don MacQueen]

You don't modify the Makefile. As Peter said, if you install readline 
in standard locations, it should be found automatically.

If, like me, you don't put the readline libraries in a standard 
location, you still don't modify the Makefile. You modify the 
"config.site" file, to tell the R installation scripts where, in 
addition to the standard places, to look.

These features are reasonably well described in the config.site file, 
among others.

For example, I added these lines to my config.site file:

CPPFLAGS="-I/non-standard-location/local/include"
LDFLAGS="-L/non-standard-location/local/lib"

And in the non-standard-location are the readline libraries and include files.

[10]% ls /non-standard-location/local/lib | grep readl
libreadline.a
libreadline.so.4

[11]% ls /non-standard-location/local/include | grep read
readline/

Note also that the above is for R 1.5.1 and may not be exactly 
correct for 1.4.1.

-Don


At 8:57 AM -0400 7/12/02, Eric Evans wrote:
>Hello everyone,
>
>Thanks to the people who so kindly responded to my earlier query 
>about how to get R to retrieve my previous command when I hit the 
>up-arrow key.  Several people pointed out to me that in order to 
>enable this feature I need to re-install R with the GNU readline 
>library.  My question now is:  how do I accomplish this?  Can anyone 
>tell me what changes I need to make to the Makefile in order to get 
>the compile/installation to include the readline library?  Thanks 
>very much....
>
>Eric Evans
>Cornell Phonetics Lab
>
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-- 
--------------------------------------
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA
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