pub unsafe extern fn LAPACKE_zggsvd(matrix_layout: c_int,
jobu: c_char,
jobv: c_char,
jobq: c_char,
m: lapack_int,
n: lapack_int,
p: lapack_int,
k: *mut lapack_int,
l: *mut lapack_int,
a: *mut lapack_complex_double,
lda: lapack_int,
b: *mut lapack_complex_double,
ldb: lapack_int,
alpha: *mut c_double,
beta: *mut c_double,
u: *mut lapack_complex_double,
ldu: lapack_int,
v: *mut lapack_complex_double,
ldv: lapack_int,
q: *mut lapack_complex_double,
ldq: lapack_int,
iwork: *mut lapack_int)
-> lapack_int