Vcsn/TroubleShooting
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Build problem
Warnings: argument unused
This warning is due to the use of ccache: it calls the compiler with options that have become useless, and clang complains about them:
CXX lib/vcsn/algos/lib_libvcsn_la-are-isomorphic.lo clang: warning: argument unused during compilation: '-I ../..' clang: warning: argument unused during compilation: '-I .' clang: warning: argument unused during compilation: '-isystem /opt/local/include'
To get rid of these warnings, use pass -Qunused-arguments to your compiler. For instance:
./configure CXX='ccache clang++' CXXFLAGS='-Qunused-arguments'