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Old 05-25-2012, 12:45 PM   #1
bcramer
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Registered: Apr 2007
Location: Brazil
Distribution: OpenSUSE
Posts: 16

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Post -lblas not found


Hi,
The program(prgm) that I'm installing requires 'lapack' and 'blas' libs. Lapack is installed automatically by the prgm and 'blas' was downloaded from the net and installed in the prgm directory.Compiling the prgm everything works fine (all executables and etc. are generated) except that one error
"cannot find -lblas" implicates that one important module of the prgm will not run.
In the compiling file(script) one must include the path of 'blas', which I did: BLAS=' -L/../../BLAS -lblas'
I also installed ATLAS (recommended by the prgm UserGuide). Successfully installed and tested, the same error message is printed out after prgm compilation.
Other details attached in the compilation file (Compall as txt) and compilation output.
Any help is welcome.
Thank you
Bruno
Attached Files
File Type: txt -lblas_sapt_install.txt (5.9 KB, 41 views)
File Type: txt Compall.txt (35.1 KB, 33 views)
 
Old 05-26-2012, 07:57 AM   #2
Nylex
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Registered: Jul 2003
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Looking at the shell script, "Compall.txt", I see a problem. You have:

Code:
BLAS=' -L/usr/local/SAPT2008/BLAS/blas_LINUX.a  -lblas '
You just use directory names with the -L option, so the first thing to do is remove the "blas_LINUX.a" part of that path. Secondly, with regards to the -l option, the linker looks for files named libfoo.so (or .a), where foo is whatever follows "-l". So, you should either rename "blas_LINUX.a" to "libblas.a" or provide a symbolic link called "libblas.a" that points to "blas_LINUX.a".

Does that help?

Last edited by Nylex; 05-26-2012 at 08:02 AM.
 
1 members found this post helpful.
Old 05-26-2012, 06:30 PM   #3
bcramer
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Registered: Apr 2007
Location: Brazil
Distribution: OpenSUSE
Posts: 16

Original Poster
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[QUOTE=Nylex;4688066]Looking at the shell script, "Compall.txt", I see a problem. You have:

Code:
BLAS=' -L/usr/local/SAPT2008/BLAS/blas_LINUX.a  -lblas '
You just use directory names with the -L option, so the first thing to do is remove the "blas_LINUX.a" part of that path. Secondly, with regards to the -l option, the linker looks for files named libfoo.so (or .a), where foo is whatever follows "-l". So, you should either rename "blas_LINUX.a" to "libblas.a" or provide a symbolic link called "libblas.a" that points to "blas_LINUX.a".

Does that help?[YES, it solved the problem]
 
  


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