tests tLSQaips and tLSQFit failing on macos-14 arm64 (but not macos-13 x86)

[d3v-null]

while updating the macos CI to run on the new macos-14 arm64 github actions runners ( #1349 ) , I noticed that these two tests are failing on arm64.

99% tests passed, 2 tests failed out of 493
Total Test time (real) =  79.27 sec
The following tests FAILED:
	226 - tLSQaips (Failed)
	227 - tLSQFit (Failed)


226/493 Test #226: tLSQaips .........................***Failed    0.07 sec
User time: 0
User time: 0
User time: 0
User time: 0
User time: 0
User time: 0
20,26c20,26
< Sol0: 1, 0.00582354, 0.00582354
< Sol1: 2, 0.00582354, 0.00582354
< Sol2: 0, 0.00582354, 0.00582354
< Sol3: 0, 0.00582354, 0.00582354
< Sol4: 0, 0.00582354, 0.00582354
< Sol5: 0, 0.00582354, 0.00582354
< Errors: 0.00151818, 0, 0, 0, 0, 0
---
> Sol0: 1, 0, 0
> Sol1: 2, 0, 0
> Sol2: 0, 0, 0
> Sol3: 0, 0, 0
> Sol4: 0, 0, 0
> Sol5: 0, 0, 0
> Errors: 0, 0, 0, 0, 0, 0
62,67c62,67
< Sol0: 1, 0.00582354, 0.00582354
< Sol1: 2, 0.00582354, 0.00582354
< Sol2: 0, 0.00582354, 0.00582354
< Sol3: 0, 0.00582354, 0.00582354
< Sol4: 0, 0.00582354, 0.00582354
< Sol5: 0, 0.00582354, 0.00582354
---
> Sol0: 1, 0, 0
> Sol1: 2, 0, 0
> Sol2: 0, 0, 0
> Sol3: 0, 0, 0
> Sol4: 0, 0, 0
> Sol5: 0, 0, 0
70,75c70,75
< Sol0: 1, 0.00582354, 0.00582354
< Sol1: 2, 0.00582354, 0.00582354
< Sol2: 0, 0.00582354, 0.00582354
< Sol3: 0, 0.00582354, 0.00582354
< Sol4: 0, 0.00582354, 0.00582354
< Sol5: 0, 0.00582354, 0.00582354
---
> Sol0: 1, 0, 0
> Sol1: 2, 0, 0
> Sol2: 0, 0, 0
> Sol3: 0, 0, 0
> Sol4: 0, 0, 0
> Sol5: 0, 0, 0
133c133
< mu: 0.00582354, me: 0.00582354
---
> mu: 0, me: 0
143c143
< mu: 0.00582354, me: 0.00582354
---
> mu: 0, me: 0
302c302
< mu: 1.94668e-07, me: 1.01662e-07
---
> mu: 0, me: 0
/Users/runner/work/casacore/casacore/build-tools/casacore_floatcheck:44: SyntaxWarning: invalid escape sequence '\g'
  line = regexp.sub (' \g<grp> ', line)
/Users/runner/work/casacore/casacore/build-tools/casacore_floatcheck:68: SyntaxWarning: invalid escape sequence '\.'
  numre = re.compile ('(?P<grp>[+-]?([0-9]+\.[0-9]*|[0-9]*\.[0-9]+|[0-9]+)([ed][+-][0-9]+)?)', re.IGNORECASE)
FAIL (floating point discrepancies > 1e-5): ./tLSQaips

        Start 227: tLSQFit
227/493 Test #227: tLSQFit ..........................***Failed    0.07 sec
User time:  0
User time: 0
User time: 0
User time: 0
User time: 0
User time: 0
20,26c20,26
< Sol0: 1, 0.00582354, 0.00582354
< Sol1: 2, 0.00582354, 0.00582354
< Sol2: 0, 0.00582354, 0.00582354
< Sol3: 0, 0.00582354, 0.00582354
< Sol4: 0, 0.00582354, 0.00582354
< Sol5: 0, 0.00582354, 0.00582354
< Errors: 0.00151818, 0, 0, 0, 0, 0
---
> Sol0: 1, 0, 0
> Sol1: 2, 0, 0
> Sol2: 0, 0, 0
> Sol3: 0, 0, 0
> Sol4: 0, 0, 0
> Sol5: 0, 0, 0
> Errors: 0, 0, 0, 0, 0, 0
158,163c158,163
< Sol0: 1, 0.00582354, 0.00582354
< Sol1: 2, 0.00582354, 0.00582354
< Sol2: 0, 0.00582354, 0.00582354
< Sol3: 0, 0.00582354, 0.00582354
< Sol4: 0, 0.00582354, 0.00582354
< Sol5: 0, 0.00582354, 0.00582354
---
> Sol0: 1, 0, 0
> Sol1: 2, 0, 0
> Sol2: 0, 0, 0
> Sol3: 0, 0, 0
> Sol4: 0, 0, 0
> Sol5: 0, 0, 0
166,171c166,171
< Sol0: 1, 0.00582354, 0.00582354
< Sol1: 2, 0.00582354, 0.00582354
< Sol2: 0, 0.00582354, 0.00582354
< Sol3: 0, 0.00582354, 0.00582354
< Sol4: 0, 0.00582354, 0.00582354
< Sol5: 0, 0.00582354, 0.00582354
---
> Sol0: 1, 0, 0
> Sol1: 2, 0, 0
> Sol2: 0, 0, 0
> Sol3: 0, 0, 0
> Sol4: 0, 0, 0
> Sol5: 0, 0, 0
234c234
< mu: 0.00582354, me: 0.00582354
---
> mu: 0, me: 0
244c244
< mu: 0.00582354, me: 0.00582354
---
> mu: 0, me: 0
403c403
< mu: 1.94668e-07, me: 1.01662e-07
---
> mu: 0, me: 0
/Users/runner/work/casacore/casacore/build-tools/casacore_floatcheck:44: SyntaxWarning: invalid escape sequence '\g'
  line = regexp.sub (' \g<grp> ', line)
/Users/runner/work/casacore/casacore/build-tools/casacore_floatcheck:68: SyntaxWarning: invalid escape sequence '\.'
  numre = re.compile ('(?P<grp>[+-]?([0-9]+\.[0-9]*|[0-9]*\.[0-9]+|[0-9]+)([ed][+-][0-9]+)?)', re.IGNORECASE)
FAIL (floating point discrepancies > 1e-5): ./tLSQFit