zspsvx(3) on Linux
The text 983ba57c7c72, as Debian 3.0 (Woody) shipped it.
use the diagonal pivoting factorization A = U*D*U**T or A = L*D*L**T to compute the solution to a complex system of linear equations A * X = B, where A is an N-by-N symmetric matrix stored in packed format and X and B are N-by-NRHS matrices