pub unsafe extern fn dgelsy_(m: *const lapack_int,
n: *const lapack_int,
nrhs: *const lapack_int,
a: *mut c_double,
lda: *const lapack_int,
b: *mut c_double,
ldb: *const lapack_int,
jpvt: *mut lapack_int,
rcond: *const c_double,
rank: *mut lapack_int,
work: *mut c_double,
lwork: *const lapack_int,
info: *mut lapack_int)