superlu43: revision for gcc
superlu43: revision for gcc

Closes #5529.

Signed-off-by: FX Coudert <c329953660db96eae534be5bbf1a735c2baf69b5@gmail.com>

heuermh/homebrew-science,philippbayer/homebrew-science,quantumsteve/homebrew-science,dpo/homebrew-science,pditommaso/homebrew-science,andrewjpage/homebrew-science