make check retturns

```
Summary:
PASS 16094
FAIL 6
REGRESSION 1
XFAIL (reported bug) 44
SKIP (missing feature) 37
SKIP (run-time condition) 31
```

The failed tests are

```
>>>>> processing /Users/carlo/Documents/_Programmi/Miei/C/octave/octave-6.2.90/test/mex/bug-51725.tst
***** assert (bug_51725 (), [])
!!!!! test failed
'bug_51725' undefined near line 2, column 2
***** error <element number 2 undefined in return list> [x,y,z] = bug_51725 ();
!!!!! error failed.
Expected <element number 2 undefined in return list>, but got <'bug_51725' undefined near line 2, column 2>
>>>>> processing /Users/carlo/Documents/_Programmi/Miei/C/octave/octave-6.2.90/test/mex/bug-54096.tst
***** test
s = bug_54096 ();
assert (s, struct ("field", []));
assert (s.field, []);
!!!!! test failed
'bug_54096' undefined near line 3, column 3
```

```
>>>>> processing /Users/carlo/Documents/_Programmi/Miei/C/octave/build-release/libinterp/corefcn/mappers.cc-tst
***** test
rval = pi/2;
ival = 1.31695789692481635;
obs = asin ([2, 2-i*eps, 2+i*eps]);
exp = [rval - ival*i, rval - ival*i, rval + ival*i];
assert (obs, exp, 2*eps);
obs = asin ([-2, -2-i*eps, -2+i*eps]);
exp = [-rval + ival*i, -rval - ival*i, -rval + ival*i];
assert (obs, exp, 2*eps);
assert (asin ([2 0]), [rval - ival*i, 0], 2*eps);
assert (asin ([2 0i]), [rval - ival*i, 0], 2*eps);
!!!!! test failed
ASSERT errors for: assert (obs,exp,2 * eps)
Location | Observed | Expected | Reason
(3) 1.5708+1.317i 1.5708+1.317i Abs err 1.1102e-15 exceeds tol 4.4409e-16 by 7e-16
shared variables scalar structure containing the fields:
rt2 = 1.4142
rt3 = 1.7321
```

```
>>>>> processing /Users/carlo/Documents/_Programmi/Miei/C/octave/octave-6.2.90/scripts/general/logspace.m
***** assert (logspace (Inf + 1i, Inf + 1i, 3), repmat (complex (-Inf,Inf), [1, 3]))
!!!!! test failed
ASSERT errors for: assert (logspace (Inf + 1i, Inf + 1i, 3),repmat (complex (-Inf, Inf), [1, 3]))
Location | Observed | Expected | Reason
(1) Inf+NaNi -Inf+Infi 'NaN' mismatch
(2) Inf+NaNi -Inf+Infi 'NaN' mismatch
(3) Inf+NaNi -Inf+Infi 'NaN' mismatch
***** assert (logspace (-Inf + 1i, Inf + 1i, 3), [0, NaN + NaN * 1i, complex(-Inf, Inf)])
!!!!! test failed
ASSERT errors for: assert (logspace (-Inf + 1i, Inf + 1i, 3),[0, NaN + NaN * 1i, complex(-Inf, Inf)])
Location | Observed | Expected | Reason
(3) Inf+NaNi -Inf+Infi 'NaN' mismatch
```

```
>>>>> processing /Users/carlo/Documents/_Programmi/Miei/C/octave/octave-6.2.90/scripts/specfun/expint.m
***** test <*47738>
assert (expint (10i), 0.0454564330044554 + 0.0875512674239774i, -4*eps);
!!!!! regression: https://octave.org/testfailure/?47738
ASSERT errors for: assert (expint (10i),0.0454564330044554 + 0.0875512674239774i,-4 * eps)
Location | Observed | Expected | Reason
() 0.045456+0.087551i 0.045456+0.087551i Rel err 9.1442e-16 exceeds tol 8.8818e-16 by 3e-17
```