[Rd] Makefile for embedding OpenBUGS in R package

Prof Brian Ripley ripley at stats.ox.ac.uk
Mon Aug 6 15:46:34 CEST 2007


On Mon, 6 Aug 2007, Tobias Verbeke wrote:

>   Dear list,
>
>   I'm trying to embed OpenBUGS in an R package for use of it
>   on 64-bit Linux. In order to get the CLI working one has to
>   compile C code contained in $OpenBUGS/Manuals/CBugs.html

same as

http://mathstat.helsinki.fi/openbugs/data/Docu/CBugs.html

I presume.

>   (copied to say CBugs.c) using
>
>   gcc -m32 -o bugs CBugs.c -ldl
>
>   I put the OpenBUGS distribution in the ./inst subdirectory of
>   the package root. Where should I now put the CBugs.c and how

Why do you want to install CBugs.c?

>   should the Makefile look like in order to be able to call
>   $PKG_ROOT/OpenBUGS/bugs afterwards ?
>
>   Naively putting the following Makefile in ./src does not work

What does 'does not work' mean?  It's hard to know whether this is just 
not doing what you wanted, or something else is wrong.

>   -%--------
>   bugs: ../inst/OpenBUGS/CBugs.c
>        gcc -m32 -o bugs ../inst/OpenBUGS/CBugs.c -ldl
>   -%-------
>
>   The objective is to use something along the following
>
>   execfile <- system.file("OpenBUGS", "bugs", package = mypkg)
>   system(paste(execfile, "< somescript.script > somefile.out"))
>
>   This system call to the CLI is currently the only (non-WINE)
>   way of using OpenBUGS on Linux in batch mode.

I think you need to make ../inst/OpenBUGS/bugs, not src/bugs.  So 
something like

all: ../inst/OpenBUGS/bugs

../inst/OpenBUGS/bugs: ../inst/OpenBUGS/CBugs.c
 	gcc -m32 -o ../inst/OpenBUGS/bugs ../inst/OpenBUGS/CBugs.c -ldl

However, -m32 builds a 32-bit executable on 64-bit linux.  Is that what you 
wanted?


-- 
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



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