CGAL users discussion list

[Laurent Saboret <>]

Hi George,

The error
  src/taucs.h:83:2: error: #error "taucs_blas_*_test: linking with the BLAS failed all attempts"
means that TAUCS failed finding BLAS libraries in ./external/lib/linux64 or in your system.

Out of the box, TAUCS is configured to use g77 on Linux.
To use gfortran, you should:
- remove all libraries in ./external/lib/linux64
- compile BLAS, LAPACK and METIS with gfortran and copy them in ./external/lib/linux64
(source code is available in the download section of http://www.cgal.org)
- update the config/linux64.mk makefile
- run configure and make

Best regards,
Laurent Saboret


George Koumantaris wrote:

hello again,

The problem is that i do not have TAUCS installed.
I am running opensuse64, i compiled taucs_external with gfortran, added the libraries to taucs_full and i am trying to generate the taucs libraries.
I read all your post (Laurent), regarding g77 and gfortran. I have gfortran and i created a symbolic link for g77. Here are the errors i am getting, i would appreciate any suggestions:

linux-n92x:/home/georgios/taucs_full # make
cc -c -O3 -Wall -std=c99 -m64   -DMACHTYPE_x86_64-suse-linux -I src/ -I build/linux64/ -I external/src/   \                                                              
       -DTAUCS_CORE_GENERAL \                                                      
       src/taucs_sn_llt.c \                                                        
       -o ./obj/linux64/taucs_sn_llt.o                                              
<command-line>: warning: ISO C99 requires whitespace after the macro name            
In file included from src/taucs_sn_llt.c:13:                                        
src/taucs.h:83:2: error: #error "taucs_blas_*_test: linking with the BLAS failed all attempts"                                                                            
In file included from src/taucs_sn_llt.c:13:
src/taucs.h:837: error: ‘taucs_blas_name’ declared as function returning a function
src/taucs.h:837: warning: parameter names (without types) in function declaration
src/taucs.h:838: error: ‘taucs_blas_name’ declared as function returning a function
src/taucs.h:838: warning: parameter names (without types) in function declaration
src/taucs.h:839: error: ‘taucs_blas_name’ declared as function returning a function
src/taucs.h:839: warning: parameter names (without types) in function declaration
src/taucs.h:840: error: ‘taucs_blas_name’ declared as function returning a function
src/taucs.h:840: warning: parameter names (without types) in function declaration
make: *** [obj/linux64/taucs_sn_llt.o] Error 1
linux-n92x:/home/georgios/taucs_full # cc -v
Using built-in specs.
Target: x86_64-suse-linux
Configured with: ../configure --prefix=/usr --infodir=/usr/share/info --mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64 --enable-languages=c,c++,objc,fortran,obj-c++,java,ada --enable-checking=release --with-gxx-include-dir=/usr/include/c++/4.3 --enable-ssp --disable-libssp --with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux' --disable-libgcj --disable-libmudflap --with-slibdir=/lib64 --with-system-zlib --enable-__cxa_atexit --enable-libstdcxx-allocator=new --disable-libstdcxx-pch --enable-version-specific-runtime-libs --program-suffix=-4.3 --enable-linux-futex --without-system-libunwind --with-cpu=generic --build=x86_64-suse-linux
Thread model: posix
gcc version 4.3.2 [gcc-4_3-branch revision 141291] (SUSE Linux)
linux-n92x:/home/georgios/taucs_full # gfortran
gfortran: no input files
linux-n92x:/home/georgios/taucs_full # g77
g77: no input files

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