Fix arpack solver #500

Job	Run time
ubuntu_latest_autotools	5m 34s
ubuntu_latest_cmake	5m 6s
ubuntu_latest_cmake_install	10m 48s
macos_latest_cmake	6m 36s
macos_latest_cmake_python	6m 42s
macos_latest_autotools	5m 46s
ubuntu_latest_autotools_ilp64	1m 16s
ubuntu_latest_autotools_install	17m 47s
ubuntu_latest_cmake_python	12m 58s
MinGW-w64 UCRT64 INTERFACE64=ON/MPI=OFF	10m 1s
MinGW-w64 UCRT64 INTERFACE64=OFF/MPI=ON	10m 22s
MinGW-w64 UCRT64 INTERFACE64=OFF/MPI=OFF	9m 30s
MinGW-w64 CLANG64 INTERFACE64=ON/MPI=OFF	8m 3s
MinGW-w64 CLANG64 INTERFACE64=OFF/MPI=ON	8m 26s
MinGW-w64 CLANG64 INTERFACE64=OFF/MPI=OFF	7m 53s
	2h 6m 48s

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