Hello,
* aaragon wrote on Sat, Mar 29, 2008 at 10:22:43PM CET:
>
> I'm trying to create a test for a library that I use in my code but the
> AC_CHECK_LIB failed in all my attempts. The library is not installed in the
> standard path so I give the configure command the necessary parameters:
>
> ./configure CXX=g++-mp-4.3 CXXFLAGS="-I$HOME/Lib/SuperLU"
> LDFLAGS="-L$HOME/Lib/SuperLU" LIBS="$HOME/Lib/SuperLU/libblas.a
> -lsuperlu_3.0"
>
> In the configure.ac file, I have:
>
> AC_CHECK_LIB([superlu],[_dCreate_CompCol_Matrix],,[echo "ERROR: SuperLU
> library not found." && exit 1])
>
> I know that the symbol is correct, since in the directory where the library
> is located (-I$HOME/Lib/SuperLU), I checked:
>
> aaragon@~/Lib/SuperLU$strings libsuperlu_3.0.a | grep -i dcreate
> _dCreate_CompCol_Matrix
> _dCreate_CompRow_Matrix
> _dCreate_Dense_Matrix
> _dCreate_SuperNode_Matrix
FWIW, a better way to check for exported symbols is to use nm instead of
strings, and check for nonstatic symbols.
> Now, the name of the library in that directory is libsuperlu_3.0. So instead
> of superlu (as it is supposed to be from the Autoconf manual), I have tried
> superlu_3, superlu_3.0, libsuperlu, libsuperlu_3 and libsuperlu_3.0.
>
> All the tests have failed. Can someone point out what am I doing wrong?
What system are you on? Maybe you need to get rid of the leading
underscore in the name? Also, please use AS_MSG_ERROR or AS_ERROR,
as 'exit 1' may not actually exit the script with an error status
with some shells:
AC_CHECK_LIB([superlu], [dCreate_CompCol_Matrix],,
[AS_MSG_ERROR([SuperLU library not found])])
Cheers,
Ralf
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