The following issue has been SUBMITTED. ====================================================================== http://public.kitware.com/Bug/view.php?id=12912 ====================================================================== Reported By: tgallagher Assigned To: ====================================================================== Project: CMake Issue ID: 12912 Category: Modules Reproducibility: always Severity: minor Priority: normal Status: new ====================================================================== Date Submitted: 2012-01-24 21:23 EST Last Modified: 2012-01-24 21:23 EST ====================================================================== Summary: FindLAPACK does not work when trying static linking Description: The FindLAPACK module does not work when trying to use static linking. When trying to compile the test file to check if the library works, it gives:
/usr/bin/gfortran CMakeFiles/cmTryCompileExec.dir/testFortranCompiler.f.o -o cmTryCompileExec -rdynamic -Wl,--start-group /usr/lib/liblapack.a /usr/lib/libblas.a -Wl,--end-group /usr/lib/libblas.a(xerbla.o): In function `xerbla_': (.text+0x0): multiple definition of `xerbla_' /usr/lib/liblapack.a(xerbla.o):(.text+0x0): first defined here collect2: ld returned 1 exit status make[2]: *** [cmTryCompileExec] Error 1 make[2]: Leaving directory `/data/lagrangianBuild/CMakeFiles/CMakeTmp' make[1]: *** [CMakeFiles/cmTryCompileExec.dir/all] Error 2 make[1]: Leaving directory `/data/lagrangianBuild/CMakeFiles/CMakeTmp' make: *** [all] Error 2 The double-definition is because the static liblapack already has all the code it needs from libblas in it, but the FindLAPACK module calls FindBLAS and links against both liblapack and libblas. The solution is to check if BLA_STATIC is set, do not call find_package(BLAS) because the lapack library will already have all the functions it needs in it. Steps to Reproduce: Compile something using the find_package(LAPACK REQUIRED) signature with BLA_STATIC defined. Additional Information: I have many other fixes related to FindBLAS and FindLAPACK as well as a new module request. If approved for the new module and given access, I can fix this bug as well. ====================================================================== Issue History Date Modified Username Field Change ====================================================================== 2012-01-24 21:23 tgallagher New Issue ====================================================================== -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://public.kitware.com/cgi-bin/mailman/listinfo/cmake-developers
