From alexander.braumann at tuwien.ac.at  Tue Jul  1 12:00:03 2014
From: alexander.braumann at tuwien.ac.at (Alexander Braumann)
Date: Tue, 1 Jul 2014 12:00:03 +0200
Subject: [Rd] Error when compiling R with openblas
Message-ID: <53B286A3.3080600@tuwien.ac.at>

Hi,

I tried to compile R with openblas on a ubuntu 12.04 machine. I have to 
say that I normally use the package system and that I have no experience 
with compiling R.

I did the following:

./configure --enable-BLAS-shlib --enable-R-shlib LIBnn=lib 
--with-blas="-L/usr/lib/openblas-base/ -lopenblas" 
--enable-memory-profiling --with-x=yes


go the output:

R is now configured for x86_64-unknown-linux-gnu

   Source directory:          .
   Installation directory:    /usr/local

   C compiler:                gcc -std=gnu99  -g -O2
   Fortran 77 compiler:       gfortran  -g -O2

   C++ compiler:              g++  -g -O2
   C++ 11 compiler:           g++  -std=c++0x -g -O2
   Fortran 90/95 compiler:    gfortran -g -O2
   Obj-C compiler:

   Interfaces supported:      X11
   External libraries:        readline, BLAS(generic), lzma
   Additional capabilities:   PNG, JPEG, NLS
   Options enabled:           shared R library, shared BLAS, R 
profiling, memory profiling

   Recommended packages:      yes

configure: WARNING: you cannot build info or HTML versions of the R manuals



Then: make - and then comes the error:

make[4]: Entering directory `/home/ab/Downloads/R-3.1.0/src/main'
make[4]: Leaving directory `/home/ab/Downloads/R-3.1.0/src/main'
make[3]: Leaving directory `/home/ab/Downloads/R-3.1.0/src/main'
make[3]: Entering directory `/home/ab/Downloads/R-3.1.0/src/main'
gcc -std=gnu99 -Wl,--export-dynamic -fopenmp  -L/usr/local/lib -o R.bin 
Rmain.o  -L../../lib -lR -lRblas
../../lib/libR.so: undefined reference to `drot_'
../../lib/libR.so: undefined reference to `dtrsm_'
../../lib/libR.so: undefined reference to `dswap_'
../../lib/libR.so: undefined reference to `dcopy_'
../../lib/libR.so: undefined reference to `ddot_'
../../lib/libR.so: undefined reference to `dgemm_'
../../lib/libR.so: undefined reference to `dscal_'
../../lib/libR.so: undefined reference to `dnrm2_'
../../lib/libR.so: undefined reference to `dsyrk_'
../../lib/libR.so: undefined reference to `dasum_'
../../lib/libR.so: undefined reference to `daxpy_'
../../lib/libR.so: undefined reference to `drotg_'
../../lib/libR.so: undefined reference to `zgemm_'
collect2: ld returned 1 exit status
make[3]: *** [R.bin] Error 1
make[3]: Leaving directory `/home/ab/Downloads/R-3.1.0/src/main'
make[2]: *** [R] Error 2
make[2]: Leaving directory `/home/ab/Downloads/R-3.1.0/src/main'
make[1]: *** [R] Error 1
make[1]: Leaving directory `/home/ab/Downloads/R-3.1.0/src'
make: *** [R] Error 1


I am wondering why libR.so wants to find these functions and not 
libRblas.so. The lib libRblas.so can be found in

 > locate libRblas.so

/home/ab/Downloads/R-3.1.0/lib/libRblas.so
/home/ab/Downloads/R-3.1.0/src/extra/blas/libRblas.so

they have both the same size.


can anyone help me with this?

cheers,

alex



[Rd] Error when compiling R with openblas
Alexander Braumann