separate Windows regression for Shonan Averaging

gtsam/sfm/tests/testShonanAveraging.cpp

@@ -206,7 +206,7 @@ TEST(ShonanAveraging3, CheckWithEigen) {
   EXPECT_LONGS_EQUAL(5, initialQ4.size());
 
   Matrix expected(4, 4);
-#if __APPLE__ || _WIN32
+#if __APPLE__
   expected << 0.145767, -0.938445, 0.135713, -0.282233,  //
       0.780348, -0.0104323, 0.266238, 0.565743,          //
       -0.383624, 0.0434887, 0.917211, 0.0983088,         //
@@ -216,6 +216,11 @@ TEST(ShonanAveraging3, CheckWithEigen) {
       0.571527, 0.0292782, 0.226546, -0.788147,          //
       -0.349294, 0.064102, 0.93465, 0.0177471,           //
       0.735667, 0.142857, 0.253519, 0.611649;
+#elif _WIN32
+  expected << 0.0825862, -0.645931, 0.271896, 0.708537,  //
+      0.927285, -0.0156335, 0.291603, -0.234236,         //
+      -0.36419, -0.132115, 0.831933, -0.39724,           //
+      0.0262425, 0.751715, 0.385912, 0.534143;
 #endif
 
   EXPECT(assert_equal(SOn(expected), initialQ4.at<SOn>(0), 1e-5));