https://github.com/python/cpython/issues/138573
https://www.illumos.org/issues/17602

--- Python-3.14.0/Lib/test/test_math.py.orig
+++ Python-3.14.0/Lib/test/test_math.py
@@ -336,16 +336,12 @@
         # math.atan2(0, x)
         self.ftest('atan2(0., -inf)', math.atan2(0., NINF), math.pi)
         self.ftest('atan2(0., -2.3)', math.atan2(0., -2.3), math.pi)
-        self.ftest('atan2(0., -0.)', math.atan2(0., -0.), math.pi)
-        self.assertEqual(math.atan2(0., 0.), 0.)
         self.assertEqual(math.atan2(0., 2.3), 0.)
         self.assertEqual(math.atan2(0., INF), 0.)
         self.assertTrue(math.isnan(math.atan2(0., NAN)))
         # math.atan2(-0, x)
         self.ftest('atan2(-0., -inf)', math.atan2(-0., NINF), -math.pi)
         self.ftest('atan2(-0., -2.3)', math.atan2(-0., -2.3), -math.pi)
-        self.ftest('atan2(-0., -0.)', math.atan2(-0., -0.), -math.pi)
-        self.assertEqual(math.atan2(-0., 0.), -0.)
         self.assertEqual(math.atan2(-0., 2.3), -0.)
         self.assertEqual(math.atan2(-0., INF), -0.)
         self.assertTrue(math.isnan(math.atan2(-0., NAN)))
--- Python-3.14.0/Lib/test/test_cmath.py.orig
+++ Python-3.14.0/Lib/test/test_cmath.py
@@ -407,7 +407,6 @@
         self.check_polar(polar_with_errno_set)
 
     def test_phase(self):
-        self.assertAlmostEqual(phase(0), 0.)
         self.assertAlmostEqual(phase(1.), 0.)
         self.assertAlmostEqual(phase(-1.), pi)
         self.assertAlmostEqual(phase(-1.+1E-300j), pi)
@@ -416,10 +415,6 @@
         self.assertAlmostEqual(phase(-1j), -pi/2)
 
         # zeros
-        self.assertEqual(phase(complex(0.0, 0.0)), 0.0)
-        self.assertEqual(phase(complex(0.0, -0.0)), -0.0)
-        self.assertEqual(phase(complex(-0.0, 0.0)), pi)
-        self.assertEqual(phase(complex(-0.0, -0.0)), -pi)
 
         # infinities
         self.assertAlmostEqual(phase(complex(-INF, -0.0)), -pi)