AP_Math: tests: define hal where requirerd for custom rotaitons

libraries/AP_Math/tests/test_geodesic_grid.cpp

@@ -20,6 +20,8 @@
 #include "math_test.h"
 #include <AP_Math/AP_GeodesicGrid.h>
 
+const AP_HAL::HAL& hal = AP_HAL::get_HAL();
+
 class TestParam {
 public:
     /**

libraries/AP_Math/tests/test_matrix3.cpp

@@ -17,6 +17,8 @@
 
 #include "math_test.h"
 
+const AP_HAL::HAL& hal = AP_HAL::get_HAL();
+
 // given we are in the Math library, you're epected to know what
 // you're doing when directly comparing floats:
 #pragma GCC diagnostic push

libraries/AP_Math/tests/test_perpendicular.cpp

@@ -3,6 +3,8 @@
 #include <AP_Math/vector2.h>
 #include <AP_Math/vector3.h>
 
+const AP_HAL::HAL& hal = AP_HAL::get_HAL();
+
 #define EXPECT_VECTOR2F_EQ(v1, v2)              \
     do {                                        \
         EXPECT_FLOAT_EQ(v1[0], v2[0]);          \

libraries/AP_Math/tests/test_quaternion.cpp

@@ -2,6 +2,8 @@
 
 #include <AP_Math/AP_Math.h>
 
+const AP_HAL::HAL& hal = AP_HAL::get_HAL();
+
 // Tests that quaternion multiplication obeys Hamilton's quaternion multiplication convention
 // i*i == j*j == k*k == i*j*k == -1
 TEST(QuaternionTest, QuaternionMultiplicationOfBases) {

libraries/AP_Math/tests/test_segment_intersection.cpp

@@ -2,6 +2,8 @@
 
 #include <AP_Math/vector2.h>
 
+const AP_HAL::HAL& hal = AP_HAL::get_HAL();
+
 #define EXPECT_VECTOR2F_EQ(v1, v2)              \
     do {                                        \
         EXPECT_FLOAT_EQ(v1[0], v2[0]);          \

libraries/AP_Math/tests/test_vector2.cpp

@@ -2,6 +2,8 @@
 
 #include <AP_Math/AP_Math.h>
 
+const AP_HAL::HAL& hal = AP_HAL::get_HAL();
+
 TEST(Vector2Test, Operator)
 {
     Vector2f v_float0{1.0f, 1.0f};

libraries/AP_Math/tests/test_vector3.cpp

@@ -2,6 +2,8 @@
 #define ALLOW_DOUBLE_MATH_FUNCTIONS
 #include <AP_Math/AP_Math.h>
 
+const AP_HAL::HAL& hal = AP_HAL::get_HAL();
+
 TEST(Vector3Test, Operator)
 {
     Vector3f v_float0{1.0f, 1.0f,1.0f};