[Rd] R-2.11.1 build and 'so' libraries withouth the 'lib' prefix

[Simon Urbanek]

On Jul 12, 2010, at 5:29 AM, lI wrote:

> Greetings,
> 
> I have a computer with the following setup:
> 1)cblfs (pure 64-bit (amd64) linux), kernel2.6.34 gcc4.4.2 
> 2)R-2.11.1    
> 
> I compiled R with BLAS and lapack  using the switched  ( --with-blas="-
> lpthread -latlas  -lfptf77blas" 
> --with-lapack="-llapack -lcblas"  ). 
> (( http://cran.r-project.org/doc/manuals/R-admin.html#Linear-algebra) )
> 
> Prior to compiling R-2.11.1
> sh conigure --help   gave  options including  the following
> SHLIB_LD         command for linking shared libraries 
>                which contain object files  from a C or Fortran compiler only                              
> SHLIB_LDFLAGS   special flags used by SHLIB_LD
> SHLIB_CXXLDFLAGS   special flags used by SHLIB_CXXLD                               
> SHLIB_FCD   command for linking shared libraries which contain object files 
>              from the Fortran 95 compiler                                    
> SHLIB_FCLDFLAGS  special flags used by SHLIB_FCLD 
> 
> 
> I did not know what to set for these   and accepted whatever the defaults 
> were.  I ended up with shared-libraries which are  as  follows:-
> 
> $R_HOME/lib/{libRblas.so,libRlapack.so  }  i.e. with   the prefix 'lib' 
> and the following shared-libraries  without the 'lib' prefix.
> 

Those are not shared libraries - they are shared objects loaded by R dynamically.

Cheers,
Simon



> $R_HOME/modules/{R_X11.so,internet.so,lapack.so,vfonts.so }
> $R_HOME/library/cluster/libs/cluster.so
> $R_HOME/library/foreign/libs/foreign.so
> $R_HOME/library/grDevices/libs/grDevices.so
> $R_HOME/library/grid/libs/grid.so
> $R_HOME/library/KernSmooth/libs/KernSmooth.so
> $R_HOME/library/lattice/libs/lattice.so
> $R_HOME/library/MASS/libs/MASS.so
> $R_HOME/library/Matrix/libs/Matrix.so
> $R_HOME/library/methods/libs/methods.so
> $R_HOME/library/mgcv/libs/mgcv.so
> $R_HOME/library/nlme/libs/nlme.so
> $R_HOME/library/nnet/libs/nnet.so
> $R_HOME/library/rpart/libs/rpart.so
> $R_HOME/library/spatial/libs/spatial.so
> $R_HOME/library/splines/libs/splines.so
> $R_HOME/library/stats/libs/stats.so
> $R_HOME/library/survival/libs/survival.so
> $R_HOME/library/tools/libs/tools.so
> 
> 
> In linux builds   the linker usually looks for libs with the 'lib'  prefix.  In 
> this installation  all the libraries   
> ---in $R_HOME/modules
> ---in $R_HOME/library/patha/to/whatevr
> 
> do not have the   'lib' prefix.  
> 
> QUESTION:
> A) does any on list know   SHLIB_LD   SHLIB_LDFLAGS  SHLIB_CXXLDFLAGS    
> SHLIB_FCD   SHLIB_FCLDFLAGS    settings for compiling R  and do these result 
> in  so libs with the 'lib' prefix?
> B) If all of A) is negative what is there to be done to    to enable 
> generation   libraries in $R_HOME/modules $R_HOME/library/~  with the 'lib' 
> prefix?
> 
> 
> suggestions welcomed.
> 
> luxInteg
> 
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