[cmake-developers] [CMake 0013834]: FindBLAS doesn't trust pkg-config and may, therefore, fail

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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http://www.cmake.org/Bug/view.php?id=13834 
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Reported By:                Gert Wollny
Assigned To:                
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Project:                    CMake
Issue ID:                   13834
Category:                   CMake
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
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Date Submitted:             2013-01-04 07:25 EST
Last Modified:              2013-01-04 07:25 EST
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Summary:                    FindBLAS doesn't trust pkg-config and may,
therefore, fail
Description: 
FindBLAS first tries to locate the BLAS libraries by using pkg-config. However,
instead of trusting the returned information, it then tries to locate all
libraries given in the returned string within the returned library directory. 

When on Gentoo ACML is selected to provide BLAS, this strategy fails, because
apart from the acml libraries, libgfortran and libpthread are reported by
phk-config and these libraries are not located within the given library
directory, since they are in the default library search path. 

Steps to Reproduce: 
on Gentoo: 

eselect blas set acml-gfortran-openmp

Add to CmakeLists.txt: 

FIND_PACKAGE(BLAS)

run cmake 

Make Error at /usr/share/cmake/Modules/FindBLAS.cmake:58 (message):
  Something is wrong in your pkg-config file - lib gfortran not found in
  /opt/acml4.4.0/gfortran64_mp/lib


Additional Information: 
Instead of searching for the libraries, FindBLAS should either just trust
pkg-config, or try to link a simple program that requires a BLAS function.


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Issue History 
Date Modified    Username       Field                    Change               
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2013-01-04 07:25 Gert Wollny    New Issue                                    
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