Hi, The function (`?gges`) being called in `schurfact` from LAPACK accepts an argument for sorting the eigenvalues according to a logical/boolean function. I am currently working on some code that would be valuable for me to sort eigenvalues into explosive and nonexplosive (modulus bounded by unity). Are there plans to accept the arguments for sorting to the gges wrapper? I started working on one, but 1) haven't had a chance to quite finish debugging and 2) am not sure that I have the proper skill level to finish debugging it. My fork <https://github.com/cc7768/julia> of julia has a branch called "sort_gen_eig" where I add "sort" and "selctg" as arguments to gges and the appropriate schurfact calls. For a quicker look, I have a temporary file called test_sort.jl <https://github.com/cc7768/julia/blob/sort_gen_eig/base/linalg/test_sort.jl> that can be used to test what I would like to accomplish.
When I run the code in test_sort.jl, I get segmentation errors. Could anyone help me with this? For additional background information: Scipy has attempted to include the sort function in their call to ?gges, but had some issues with windows machines (here <https://github.com/scipy/scipy/blob/1507874c9f266f6687829bba3ee28ea7a696b657/scipy/linalg/_decomp_qz.py#L18> is code and here <https://github.com/scipy/scipy/pull/3107> is issue).
