Let me tell an example.
I found the bayesSurv package in CRAN. It has some .cpp and .h files, and
doesn't have a makefile. I did the following steps:
1. compile the package (R CMD INSTALL)
2. write something in /src/List.cpp (only add an empty line)
3. recompile package (INSTALL)
it works, OK.
4. write something in /src/List.h
5. recompile
it does nothing. List.cpp was not changed and so R says List.o is up
to date, right?
Is there any way to tell R that List.o depends on List.h???
I think it is not an R problem, because Makefiles can check it. My
question is: I know that List.o is not up to dated, because I changed
List.h, and my Makefile recognizes it. But if I tell R to compile List.cpp
again using COMPILE, it will say that the file is up to date, and won't
compile it. So, the only way to check dependencies, as I can see, is using a
Makefile, and compiling .cpp files without any R help. Is it true?
Pedro Andrade
--
LEG - Laboratório de Estatística e Geoinformação
http://www.est.ufpr.br/leg/
Departamento de Estatística
Universidade Federal do Paraná
On Wed, 23 Mar 2005, Prof Brian Ripley wrote:
> On Wed, 23 Mar 2005, Pedro Ribeiro de Andrade Neto wrote:
>
> >
> > On Wed, 23 Mar 2005, Prof Brian Ripley wrote:
> >
> >> On Wed, 23 Mar 2005, Pedro Ribeiro de Andrade Neto wrote:
> >>
> >>> I am developing a package with a lot of C++ code, and I have a question
> >>> about R CMD COMPILE. As I can see, when the package's Makefile calls
> >>>
> >>> R CMD COMPILE foo.cpp
> >>
> >> Why does your package have a Makefile? And why is it calling COMPILE and
> >> not SHLIB?
> >>
> >
> > My package has a Makefile because I need to compile 16 .cpp files. After
> > it, I call R CMD SHLIB.
>
> R CMD SHLIB would do that for you. Many packages using multiple .cpp
> files have no Makefile. Please study the many examples on CRAN.
>
> --
> Brian D. Ripley, [EMAIL PROTECTED]
> 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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