Re: [Lapackpp-devel] Error configuring with externally compiled Blas & Lapack

[Sonia S. <son...@gm...>]

Hi,
I gave the full path, and the config.log looks like this

-----------------------------------------------------------------

| }
configure:22227: result: no
configure:22237: checking for sgemm_
configure:22302: gcc -o conftest -g -O2   conftest.c
-L/afs/ece.cmu.edu/support/gcc/4.1.1/4.1.1-1/i386_suse93/image/usr/local/bin/../lib/gcc/i686-pc-linux-gnu/4.1.1
-L/afs/ece.cmu.edu/support/gcc/4.1.1/4.1.1-1/i386_suse93/image/usr/local/bin/../lib/gcc
-L/usr/local/lib/gcc/i686-pc-linux-gnu/4.1.1
-L/afs/ece.cmu.edu/support/gcc/4.1.1/4.1.1-1/i386_suse93/image/usr/local/bin/../lib/gcc/i686-pc-linux-gnu/4.1.1/../../..
-L/usr/local/lib/gcc/i686-pc-linux-gnu/4.1.1/../../.. -lgfortranbegin
-lgfortran -lm -lgcc_s >&5
/tmp/ccUC6VD8.o: In function `main':
/ux0/soniasin/packages/lapackpp-2.5.0/conftest.c:81: undefined
reference to `sgemm_'
/tmp/ccUC6VD8.o:(.data+0x0): undefined reference to `sgemm_'
collect2: ld returned 1 exit status
configure:22308: $? = 1
configure: failed program was:
-------------------------------------------------------------------------------------

Its not linking the blas lib that I have given in the config command line.
./configure --with-blas=/scratch2/sonia/packages/mkl/lib/32/libmkl_ia32.a
--with-lapack=/scratch2/sonia/packages/mkl/lib/32/libmkl_lapack.a

~ Sonia

On 1/25/07, Christian Stimming <sti...@tu...> wrote:
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> Hash: SHA1
>
> Hi,
>
> Sonia Singhal schrieb:
> > I am trying to compile lapackpp-2.5.0 on Suse Linux.
> > I am using Intel's MKL library containing Blas and Lapack libraries.
> > When I run configure giving the path to these libraries, it gives the
> > error of not finding functions in the blas/lapack libraries.
> > ---------------------------------------------------------------------------------------------------------
> >> ./configure --with-blas=~/pacakages/mkl/lib/32/libmkl_ia32.a --with-lapack=~/pacakages/mkl/lib/32/libmkl_lapack.a
> > .
> > .
> > checking for dummy main to link with Fortran libraries... none
> > checking for Fortran name-mangling scheme... lower case, underscore,
> > no extra underscore
> > checking for sgemm_ in ~/pacakages/mkl/lib/32/libmkl_ia32.a... no
>
> This is the important error in the configure result -- according to the
> "nm" output below, this check should have succeeded instead:
>
> >> nm ~/pacakages/mkl/lib/32/libmkl_ia32.a | grep sgemm_
> > ...
> > _sgemm_fb.o:
> > 00000000 T sgemm_
>
> Can you open the file "config.log" that was created during configure,
> and look for the exact (compiler/linker) error message on the failed
> test? To find this place, search for the string "checking for sgemm_" in
> that file. Maybe the compiler doesn't like the tilde ("~"), in which
> case you should specify a complete absolute path name instead.
>
> Regards,
>
> Christian
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