pub unsafe extern fn dtrsyl_(trana: *const c_char,
tranb: *const c_char,
isgn: *const lapack_int,
m: *const lapack_int,
n: *const lapack_int,
a: *const c_double,
lda: *const lapack_int,
b: *const c_double,
ldb: *const lapack_int,
c: *mut c_double,
ldc: *const lapack_int,
scale: *mut c_double,
info: *mut lapack_int)