Template error with g++ 8.0.1

[jamesjer]

Attempting to build linbox 1.5.2 on an x86_64 Fedora Rawhide machine with g++ 8.0.1:

In file included from ../../linbox/matrix/densematrix/blas-matrix.h:54,
                 from ../../linbox/matrix/dense-matrix.h:79,
                 from ../../linbox/algorithms/rational-solver.h:43,
                 from ../../linbox/algorithms/diophantine-solver.h:29,
                 from diophantine-solver.C:26:
../../linbox/matrix/densematrix/blas-transposed-matrix.h:74:8: error: too many template-parameter-lists
  class TransposedBlasMatrix< TransposedBlasMatrix< Matrix > > : public Matrix {
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The code there reads:

#if !defined(__INTEL_COMPILER) && !defined(__CUDACC__) & !defined(__clang__)
	template <>
#endif
	template< class Matrix >
	class TransposedBlasMatrix< TransposedBlasMatrix< Matrix > > : public Matrix {

Apparently g++ 8.0.1 also does not want that "template <>". Removing it results in a successful build.
Also, note that the #if line contains a single ampersand where a double ampersand should be used.

[ClementPernet]

Fixed in 56be867