[Rd] Re: [Omega-remote] Installing RSPython with R 1.3.0

[Duncan Temple Lang]

Hi Greg.

  What you are seeing is probably a result of using R embedded within another
application/system (Python in this case) but having R originally compiled
without support for R as a shared library. If you were to build R in the default
manner, i.e.
    configure
    make
and then re-configure to build as a shared library
    configure --enable-R-shlib
    make
the shared objects that make up the modules and package libraries
will not be rebuilt. Perhaps they should, but that is not currently
what happens.

 If you were to start afresh (e.g. make distclean) 
and then configure with shared library support
(
    configure --enable-R-shlib
    make
)
all should be well and all the .so's that R attempts to load will
also be linked against libR.so and so the symbols within R on which
they depend will be located.

  Hope this is the correct diagnosis of the problem.

     D.

Gregory R. Warnes wrote:
> 
> To get RSPython installed on my debian test box, I had to make a couple
> of changes not listed in
> ftp://www.omegahat.org/pub/Omega/RSPython/FAQ.html 
> 
> 1) I had to change $R_HOME/src/modules/X11 :
> 
> $(R_X11_la): $(R_X11_la_OBJECTS) $(R_X11_la_DEPENDENCIES)
>         $(SHLIB_LINK) -o $@ $(R_X11_la_LDFLAGS) $(R_X11_la_OBJECTS)
> $(R_X11_la_LIBADD) $(LIBS) 
> 
> to
> 
> $(R_X11_la): $(R_X11_la_OBJECTS) $(R_X11_la_DEPENDENCIES)
>         $(SHLIB_LINK) -o $@ $(R_X11_la_LDFLAGS) $(R_X11_la_OBJECTS)
> $(R_X11_la_LIBADD) $(LIBS) -L$(R_HOME)/bin -lR
> 
> 2) I had the same link problem with ctest, so I changed
> 
> PKG_LIBS =  -lg2c -lm -L/usr/lib/gcc-lib/i386-linux/2.95.4 -lm
> 
> to
> 
> PKG_LIBS =  -lg2c -lm -L/usr/lib/gcc-lib/i386-linux/2.95.4 -lm
> -L$(R_HOME)/bin -lR
> 
> 
> 3)  Will all libraries that get loaded into R inside of python require
> this?
> 
> 
> If I try to load other 'recommended' packages that include C code I get
> dyn.load erros, EG:
> 
> >>> RS.call("library","splines")
> Error in dyn.load(x, as.logical(local), as.logical(now)) :
>         unable to load shared library
> "/usr/local/lib/R/library/splines/libs/splines.so":
>   /usr/local/lib/R/library/splines/libs/splines.so: undefined symbol:
> R_NaN
> Error in function (package, help, lib.loc = .lib.loc, character.only =
> FALSE,  :
>         .First.lib failed
> In the local error handler
> In the local error handler
> Error in if (!is.numeric(name) || name != (pos <- as.integer(name))) { :
>         missing value where logical needed
> In the local error handler
> In the local error handler
> Error in pos.to.env(pos) : invalid argument
> In the local error handler
> In the local error handler
> Error in objects(lib.pos) : invalid envir= argument
> In the local error handler
> ['RSPython', 'ctest', 'base']
> 
> -Greg
> _______________________________________________
> Omega-remote mailing list  -  Omega-remote@www.omegahat.org
> http://www.omegahat.org/mailman/listinfo/omega-remote
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