[restored issue] - use the proper starpu pkgconfig
For now we rely on the libstarpu[mpi].pc files as pointed out by #42 (closed) .
We should assess why because it defines -DSTARPU_USE_DEPRECATED_API
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Consider using starpu[mpi]-1.2.pc files instead.
Warning: this issue has been restored from backup and can have been changed. For example, all comments have been lost.