Fixing compiler warnings around implicit type casting loosing precision

.github/workflows/ci.yml

@@ -26,6 +26,11 @@ jobs:
         run: |
           scons target=release generate_bindings=yes -j $(nproc)
 
+      - name: Build test project
+        run: |
+          cd test
+          scons target=release -j $(nproc)
+
       - name: Upload artifact
         uses: actions/upload-artifact@v2
         with:
@@ -55,6 +60,11 @@ jobs:
         run: |
           scons target=release generate_bindings=yes -j $env:NUMBER_OF_PROCESSORS
 
+      - name: Build test project
+        run: |
+          cd test
+          scons target=release -j $env:NUMBER_OF_PROCESSORS
+
       - name: Upload artifact
         uses: actions/upload-artifact@v2
         with:
@@ -89,6 +99,11 @@ jobs:
           gcc --version
           scons target=release generate_bindings=yes use_mingw=yes -j $env:NUMBER_OF_PROCESSORS
 
+      #- name: Build test project (TODO currently not supported, leaving uncommented as a reminder to fix this)
+      #  run: |
+      #    cd test
+      #    scons target=release use_mingw=yes -j $env:NUMBER_OF_PROCESSORS
+
       - name: Upload artifact
         uses: actions/upload-artifact@v2
         with:
@@ -118,6 +133,11 @@ jobs:
         run: |
           scons target=release generate_bindings=yes -j $(sysctl -n hw.logicalcpu)
 
+      - name: Build test project
+        run: |
+          cd test
+          scons target=release -j $(sysctl -n hw.logicalcpu)
+
   static-checks:
     name: Static Checks (clang-format)
     runs-on: ubuntu-20.04

include/godot_cpp/core/binder_common.hpp

@@ -239,18 +239,18 @@ void call_with_variant_args_dv(T *p_instance, void (T::*p_method)(P...), const G
 #ifdef DEBUG_ENABLED
 	if ((size_t)p_argcount > sizeof...(P)) {
 		r_error.error = GDNATIVE_CALL_ERROR_TOO_MANY_ARGUMENTS;
-		r_error.argument = sizeof...(P);
+		r_error.argument = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
 
 	int32_t missing = (int32_t)sizeof...(P) - (int32_t)p_argcount;
 
-	int32_t dvs = default_values.size();
+	int32_t dvs = (int32_t)default_values.size();
 #ifdef DEBUG_ENABLED
 	if (missing > dvs) {
 		r_error.error = GDNATIVE_CALL_ERROR_TOO_FEW_ARGUMENTS;
-		r_error.argument = sizeof...(P);
+		r_error.argument = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
@@ -274,18 +274,18 @@ void call_with_variant_argsc_dv(T *p_instance, void (T::*p_method)(P...) const,
 #ifdef DEBUG_ENABLED
 	if ((size_t)p_argcount > sizeof...(P)) {
 		r_error.error = GDNATIVE_CALL_ERROR_TOO_MANY_ARGUMENTS;
-		r_error.argument = sizeof...(P);
+		r_error.argument = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
 
 	int32_t missing = (int32_t)sizeof...(P) - (int32_t)p_argcount;
 
-	int32_t dvs = default_values.size();
+	int32_t dvs = (int32_t)default_values.size();
 #ifdef DEBUG_ENABLED
 	if (missing > dvs) {
 		r_error.error = GDNATIVE_CALL_ERROR_TOO_FEW_ARGUMENTS;
-		r_error.argument = sizeof...(P);
+		r_error.argument = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
@@ -309,18 +309,18 @@ void call_with_variant_args_ret_dv(T *p_instance, R (T::*p_method)(P...), const
 #ifdef DEBUG_ENABLED
 	if ((size_t)p_argcount > sizeof...(P)) {
 		r_error.error = GDNATIVE_CALL_ERROR_TOO_MANY_ARGUMENTS;
-		r_error.argument = sizeof...(P);
+		r_error.argument = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
 
 	int32_t missing = (int32_t)sizeof...(P) - (int32_t)p_argcount;
 
-	int32_t dvs = default_values.size();
+	int32_t dvs = (int32_t)default_values.size();
 #ifdef DEBUG_ENABLED
 	if (missing > dvs) {
 		r_error.error = GDNATIVE_CALL_ERROR_TOO_FEW_ARGUMENTS;
-		r_error.argument = sizeof...(P);
+		r_error.argument = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
@@ -344,18 +344,18 @@ void call_with_variant_args_retc_dv(T *p_instance, R (T::*p_method)(P...) const,
 #ifdef DEBUG_ENABLED
 	if ((size_t)p_argcount > sizeof...(P)) {
 		r_error.error = GDNATIVE_CALL_ERROR_TOO_MANY_ARGUMENTS;
-		r_error.argument = sizeof...(P);
+		r_error.argument = (int32_t)sizeof...(P);
 		return;
 	}
 #endif
 
 	int32_t missing = (int32_t)sizeof...(P) - (int32_t)p_argcount;
 
-	int32_t dvs = default_values.size();
+	int32_t dvs = (int32_t)default_values.size();
 #ifdef DEBUG_ENABLED
 	if (missing > dvs) {
 		r_error.error = GDNATIVE_CALL_ERROR_TOO_FEW_ARGUMENTS;
-		r_error.argument = sizeof...(P);
+		r_error.argument = (int32_t)sizeof...(P);
 		return;
 	}
 #endif

include/godot_cpp/core/math.hpp

@@ -163,7 +163,7 @@ inline double sinc(double p_x) {
 }
 
 inline float sincn(float p_x) {
-	return sinc(Math_PI * p_x);
+	return (float)sinc(Math_PI * p_x);
 }
 inline double sincn(double p_x) {
 	return sinc(Math_PI * p_x);

include/godot_cpp/core/method_bind.hpp

@@ -71,10 +71,10 @@ protected:
 public:
 	const char *get_name() const;
 	void set_name(const char *p_name);
-	_FORCE_INLINE_ int get_default_argument_count() const { return default_arguments.size(); }
+	_FORCE_INLINE_ int get_default_argument_count() const { return (int)default_arguments.size(); }
 	_FORCE_INLINE_ const std::vector<Variant> &get_default_arguments() const { return default_arguments; }
 	_FORCE_INLINE_ Variant has_default_argument(int p_arg) const {
-		int idx = p_arg - (argument_count - default_arguments.size());
+		int idx = p_arg - (argument_count - (int)default_arguments.size());
 
 		if (idx < 0 || idx >= default_arguments.size()) {
 			return false;
@@ -83,7 +83,7 @@ public:
 		}
 	}
 	_FORCE_INLINE_ Variant get_default_argument(int p_arg) const {
-		int idx = p_arg - (argument_count - default_arguments.size());
+		int idx = p_arg - (argument_count - (int)default_arguments.size());
 
 		if (idx < 0 || idx >= default_arguments.size()) {
 			return Variant();
@@ -159,7 +159,7 @@ public:
 	}
 
 	void set_method_info(const MethodInfo &p_info, bool p_return_nil_is_variant) {
-		set_argument_count(p_info.arguments.size());
+		set_argument_count((int)p_info.arguments.size());
 		if (p_info.arguments.size()) {
 			std::vector<std::string> names;
 			names.reserve(p_info.arguments.size());
@@ -175,7 +175,7 @@ public:
 		if (p_return_nil_is_variant) {
 			arguments.return_val.usage |= PROPERTY_USAGE_NIL_IS_VARIANT;
 		}
-		generate_argument_types(p_info.arguments.size());
+		generate_argument_types((int)p_info.arguments.size());
 	}
 
 	virtual void ptrcall(GDExtensionClassInstancePtr p_instance, const GDNativeTypePtr *p_args, GDNativeTypePtr r_return) const {
@@ -252,7 +252,7 @@ public:
 
 	virtual Variant call(GDExtensionClassInstancePtr p_instance, const GDNativeVariantPtr *p_args, const GDNativeInt p_argument_count, GDNativeCallError &r_error) const {
 #ifdef TYPED_METHOD_BIND
-		call_with_variant_args_dv(static_cast<T *>(p_instance), method, p_args, p_argument_count, r_error, get_default_arguments());
+		call_with_variant_args_dv(static_cast<T *>(p_instance), method, p_args, (int)p_argument_count, r_error, get_default_arguments());
 #else
 		call_with_variant_args_dv(reinterpret_cast<MB_T *>(p_instance), method, p_args, p_argument_count, r_error, get_default_arguments());
 #endif
@@ -330,7 +330,7 @@ public:
 
 	virtual Variant call(GDExtensionClassInstancePtr p_instance, const GDNativeVariantPtr *p_args, const GDNativeInt p_argument_count, GDNativeCallError &r_error) const {
 #ifdef TYPED_METHOD_BIND
-		call_with_variant_argsc_dv(static_cast<T *>(p_instance), method, p_args, p_argument_count, r_error, get_default_arguments());
+		call_with_variant_argsc_dv(static_cast<T *>(p_instance), method, p_args, (int)p_argument_count, r_error, get_default_arguments());
 #else
 		call_with_variant_argsc_dv(reinterpret_cast<MB_T *>(p_instance), method, p_args, p_argument_count, r_error, get_default_arguments());
 #endif
@@ -414,7 +414,7 @@ public:
 	virtual Variant call(GDExtensionClassInstancePtr p_instance, const GDNativeVariantPtr *p_args, const GDNativeInt p_argument_count, GDNativeCallError &r_error) const {
 		Variant ret;
 #ifdef TYPED_METHOD_BIND
-		call_with_variant_args_ret_dv(static_cast<T *>(p_instance), method, p_args, p_argument_count, ret, r_error, get_default_arguments());
+		call_with_variant_args_ret_dv(static_cast<T *>(p_instance), method, p_args, (int)p_argument_count, ret, r_error, get_default_arguments());
 #else
 		call_with_variant_args_ret_dv((MB_T *)p_instance, method, p_args, p_argument_count, ret, r_error, get_default_arguments());
 #endif
@@ -499,7 +499,7 @@ public:
 	virtual Variant call(GDExtensionClassInstancePtr p_instance, const GDNativeVariantPtr *p_args, const GDNativeInt p_argument_count, GDNativeCallError &r_error) const {
 		Variant ret;
 #ifdef TYPED_METHOD_BIND
-		call_with_variant_args_retc_dv(static_cast<T *>(p_instance), method, p_args, p_argument_count, ret, r_error, get_default_arguments());
+		call_with_variant_args_retc_dv(static_cast<T *>(p_instance), method, p_args, (int)p_argument_count, ret, r_error, get_default_arguments());
 #else
 		call_with_variant_args_retc_dv((MB_T *)p_instance, method, p_args, p_argument_count, ret, r_error, get_default_arguments());
 #endif

include/godot_cpp/variant/aabb.hpp

@@ -336,7 +336,7 @@ inline void AABB::expand_to(const Vector3 &p_vector) {
 }
 
 void AABB::project_range_in_plane(const Plane &p_plane, real_t &r_min, real_t &r_max) const {
-	Vector3 half_extents(size.x * 0.5, size.y * 0.5, size.z * 0.5);
+	Vector3 half_extents(size.x * (real_t)0.5, size.y * (real_t)0.5, size.z * (real_t)0.5);
 	Vector3 center(position.x + half_extents.x, position.y + half_extents.y, position.z + half_extents.z);
 
 	real_t length = p_plane.normal.abs().dot(half_extents);
@@ -374,9 +374,9 @@ inline real_t AABB::get_shortest_axis_size() const {
 }
 
 bool AABB::smits_intersect_ray(const Vector3 &p_from, const Vector3 &p_dir, real_t t0, real_t t1) const {
-	real_t divx = 1.0 / p_dir.x;
+	real_t divx = (real_t)1.0 / p_dir.x;
-	real_t divy = 1.0 / p_dir.y;
+	real_t divy = (real_t)1.0 / p_dir.y;
-	real_t divz = 1.0 / p_dir.z;
+	real_t divz = (real_t)1.0 / p_dir.z;
 
 	Vector3 upbound = position + size;
 	real_t tmin, tmax, tymin, tymax, tzmin, tzmax;
@@ -426,9 +426,9 @@ void AABB::grow_by(real_t p_amount) {
 	position.x -= p_amount;
 	position.y -= p_amount;
 	position.z -= p_amount;
-	size.x += 2.0 * p_amount;
+	size.x += (real_t)2.0 * p_amount;
-	size.y += 2.0 * p_amount;
+	size.y += (real_t)2.0 * p_amount;
-	size.z += 2.0 * p_amount;
+	size.z += (real_t)2.0 * p_amount;
 }
 
 void AABB::quantize(real_t p_unit) {

include/godot_cpp/variant/color.hpp

@@ -157,7 +157,7 @@ public:
 
 	inline Color blend(const Color &p_over) const {
 		Color res;
-		float sa = 1.0 - p_over.a;
+		float sa = (real_t)1.0 - p_over.a;
 		res.a = a * sa + p_over.a;
 		if (res.a == 0) {
 			return Color(0, 0, 0, 0);
@@ -171,16 +171,16 @@ public:
 
 	inline Color to_linear() const {
 		return Color(
-				r < 0.04045 ? r * (1.0 / 12.92) : Math::pow((r + 0.055) * (1.0 / (1 + 0.055)), 2.4),
+				r < (real_t)0.04045 ? r * (real_t)(1.0 / 12.92) : Math::pow((r + (real_t)0.055) * (real_t)(1.0 / (1.0 + 0.055)), (real_t)2.4),
-				g < 0.04045 ? g * (1.0 / 12.92) : Math::pow((g + 0.055) * (1.0 / (1 + 0.055)), 2.4),
+				g < (real_t)0.04045 ? g * (real_t)(1.0 / 12.92) : Math::pow((g + (real_t)0.055) * (real_t)(1.0 / (1.0 + 0.055)), (real_t)2.4),
-				b < 0.04045 ? b * (1.0 / 12.92) : Math::pow((b + 0.055) * (1.0 / (1 + 0.055)), 2.4),
+				b < (real_t)0.04045 ? b * (real_t)(1.0 / 12.92) : Math::pow((b + (real_t)0.055) * (real_t)(1.0 / (1.0 + 0.055)), (real_t)2.4),
 				a);
 	}
 	inline Color to_srgb() const {
 		return Color(
-				r < 0.0031308 ? 12.92 * r : (1.0 + 0.055) * Math::pow(r, 1.0f / 2.4f) - 0.055,
+				r < (real_t)0.0031308 ? (real_t)12.92 * r : (real_t)(1.0 + 0.055) * Math::pow(r, (real_t)(1.0 / 2.4)) - (real_t)0.055,
-				g < 0.0031308 ? 12.92 * g : (1.0 + 0.055) * Math::pow(g, 1.0f / 2.4f) - 0.055,
+				g < (real_t)0.0031308 ? (real_t)12.92 * g : (real_t)(1.0 + 0.055) * Math::pow(g, (real_t)(1.0 / 2.4)) - (real_t)0.055,
-				b < 0.0031308 ? 12.92 * b : (1.0 + 0.055) * Math::pow(b, 1.0f / 2.4f) - 0.055, a);
+				b < (real_t)0.0031308 ? (real_t)12.92 * b : (real_t)(1.0 + 0.055) * Math::pow(b, (real_t)(1.0 / 2.4)) - (real_t)0.055, a);
 	}
 
 	static Color hex(uint32_t p_hex);
@@ -202,14 +202,14 @@ public:
 	operator String() const;
 
 	// For the binder.
-	inline void set_r8(int32_t r8) { r = (Math::clamp(r8, 0, 255) / 255.0); }
+	inline void set_r8(int32_t r8) { r = (Math::clamp(r8, 0, 255) / (real_t)255.0); }
-	inline int32_t get_r8() const { return int32_t(Math::clamp(r * 255.0, 0.0, 255.0)); }
+	inline int32_t get_r8() const { return int32_t(Math::clamp(r * (real_t)255.0, (real_t)0.0, (real_t)255.0)); }
-	inline void set_g8(int32_t g8) { g = (Math::clamp(g8, 0, 255) / 255.0); }
+	inline void set_g8(int32_t g8) { g = (Math::clamp(g8, 0, 255) / (real_t)255.0); }
-	inline int32_t get_g8() const { return int32_t(Math::clamp(g * 255.0, 0.0, 255.0)); }
+	inline int32_t get_g8() const { return int32_t(Math::clamp(g * (real_t)255.0, (real_t)0.0, (real_t)255.0)); }
-	inline void set_b8(int32_t b8) { b = (Math::clamp(b8, 0, 255) / 255.0); }
+	inline void set_b8(int32_t b8) { b = (Math::clamp(b8, 0, 255) / (real_t)255.0); }
-	inline int32_t get_b8() const { return int32_t(Math::clamp(b * 255.0, 0.0, 255.0)); }
+	inline int32_t get_b8() const { return int32_t(Math::clamp(b * (real_t)255.0, (real_t)0.0, (real_t)255.0)); }
-	inline void set_a8(int32_t a8) { a = (Math::clamp(a8, 0, 255) / 255.0); }
+	inline void set_a8(int32_t a8) { a = (Math::clamp(a8, 0, 255) / (real_t)255.0); }
-	inline int32_t get_a8() const { return int32_t(Math::clamp(a * 255.0, 0.0, 255.0)); }
+	inline int32_t get_a8() const { return int32_t(Math::clamp(a * (real_t)255.0, (real_t)0.0, (real_t)255.0)); }
 
 	inline void set_h(float p_h) { set_hsv(p_h, get_s(), get_v()); }
 	inline void set_s(float p_s) { set_hsv(get_h(), p_s, get_v()); }

include/godot_cpp/variant/quaternion.hpp

@@ -152,19 +152,19 @@ public:
 		Vector3 c = v0.cross(v1);
 		real_t d = v0.dot(v1);
 
-		if (d < -1.0 + CMP_EPSILON) {
+		if (d < (real_t)-1.0 + CMP_EPSILON) {
-			x = 0;
+			x = (real_t)0.0;
-			y = 1;
+			y = (real_t)1.0;
-			z = 0;
+			z = (real_t)0.0;
-			w = 0;
+			w = (real_t)0.0;
 		} else {
-			real_t s = Math::sqrt((1.0 + d) * 2.0);
+			real_t s = Math::sqrt(((real_t)1.0 + d) * (real_t)2.0);
-			real_t rs = 1.0 / s;
+			real_t rs = (real_t)1.0 / s;
 
 			x = c.x * rs;
 			y = c.y * rs;
 			z = c.z * rs;
-			w = s * 0.5;
+			w = s * (real_t)0.5;
 		}
 	}
 };
@@ -199,7 +199,7 @@ void Quaternion::operator*=(const real_t &s) {
 }
 
 void Quaternion::operator/=(const real_t &s) {
-	*this *= 1.0 / s;
+	*this *= (real_t)1.0 / s;
 }
 
 Quaternion Quaternion::operator+(const Quaternion &q2) const {
@@ -222,7 +222,7 @@ Quaternion Quaternion::operator*(const real_t &s) const {
 }
 
 Quaternion Quaternion::operator/(const real_t &s) const {
-	return *this * (1.0 / s);
+	return *this * ((real_t)1.0 / s);
 }
 
 bool Quaternion::operator==(const Quaternion &p_quat) const {

include/godot_cpp/variant/rect2.hpp

@@ -37,7 +37,7 @@
 
 namespace godot {
 
-struct Transform2D;
+class Transform2D;
 
 class Rect2 {
 public:
@@ -290,7 +290,7 @@ public:
 
 			//check ray box
 			r /= l;
-			Vector2 ir(1.0 / r.x, 1.0 / r.y);
+			Vector2 ir((real_t)1.0 / r.x, (real_t)1.0 / r.y);
 
 			// lb is the corner of AABB with minimal coordinates - left bottom, rt is maximal corner
 			// r.org is origin of ray

include/godot_cpp/variant/vector2.hpp

@@ -164,19 +164,19 @@ inline Vector2 Vector2::plane_project(real_t p_d, const Vector2 &p_vec) const {
 }
 
 inline Vector2 operator*(float p_scalar, const Vector2 &p_vec) {
-	return p_vec * p_scalar;
+	return p_vec * (real_t)p_scalar;
 }
 
 inline Vector2 operator*(double p_scalar, const Vector2 &p_vec) {
-	return p_vec * p_scalar;
+	return p_vec * (real_t)p_scalar;
 }
 
 inline Vector2 operator*(int32_t p_scalar, const Vector2 &p_vec) {
-	return p_vec * p_scalar;
+	return p_vec * (real_t)p_scalar;
 }
 
 inline Vector2 operator*(int64_t p_scalar, const Vector2 &p_vec) {
-	return p_vec * p_scalar;
+	return p_vec * (real_t)p_scalar;
 }
 
 inline Vector2 Vector2::operator+(const Vector2 &p_v) const {

include/godot_cpp/variant/vector2i.hpp

@@ -95,7 +95,7 @@ public:
 
 	operator String() const;
 
-	operator Vector2() const { return Vector2(x, y); }
+	operator Vector2() const { return Vector2((real_t)x, (real_t)y); }
 
 	inline Vector2i() {}
 	inline Vector2i(const Vector2 &p_vec2) {
@@ -113,15 +113,19 @@ inline Vector2i operator*(const int32_t &p_scalar, const Vector2i &p_vector) {
 }
 
 inline Vector2i operator*(const int64_t &p_scalar, const Vector2i &p_vector) {
-	return p_vector * p_scalar;
+	return p_vector * (int32_t)p_scalar;
 }
 
 inline Vector2i operator*(const float &p_scalar, const Vector2i &p_vector) {
-	return p_vector * p_scalar;
+	float x = (float)p_vector.x * p_scalar;
+	float y = (float)p_vector.y * p_scalar;
+	return Vector2i((int32_t)round(x), (int32_t)round(y));
 }
 
 inline Vector2i operator*(const double &p_scalar, const Vector2i &p_vector) {
-	return p_vector * p_scalar;
+	double x = (double)p_vector.x * p_scalar;
+	double y = (double)p_vector.y * p_scalar;
+	return Vector2i((int32_t)round(x), (int32_t)round(y));
 }
 
 typedef Vector2i Size2i;

include/godot_cpp/variant/vector3.hpp

@@ -385,8 +385,8 @@ real_t Vector3::length_squared() const {
 
 void Vector3::normalize() {
 	real_t lengthsq = length_squared();
-	if (lengthsq == 0) {
+	if (lengthsq == (real_t)0.0) {
-		x = y = z = 0;
+		x = y = z = (real_t)0.0;
 	} else {
 		real_t length = Math::sqrt(lengthsq);
 		x /= length;
@@ -403,15 +403,15 @@ Vector3 Vector3::normalized() const {
 
 bool Vector3::is_normalized() const {
 	// use length_squared() instead of length() to avoid sqrt(), makes it more stringent.
-	return Math::is_equal_approx(length_squared(), 1.0, UNIT_EPSILON);
+	return Math::is_equal_approx(length_squared(), (real_t)1.0, (real_t)UNIT_EPSILON);
 }
 
 Vector3 Vector3::inverse() const {
-	return Vector3(1.0 / x, 1.0 / y, 1.0 / z);
+	return Vector3((real_t)1.0 / x, (real_t)1.0 / y, (real_t)1.0 / z);
 }
 
 void Vector3::zero() {
-	x = y = z = 0;
+	x = y = z = (real_t)0.0;
 }
 
 // slide returns the component of the vector along the given plane, specified by its normal vector.

test/SConstruct

@@ -38,12 +38,13 @@ opts.Add(
         host_platform,
         # We'll need to support these in due times
         # allowed_values=("linux", "freebsd", "osx", "windows", "android", "ios", "javascript"),
-        allowed_values=("linux", "windows"),
+        allowed_values=("linux", "windows", "osx"),
         ignorecase=2,
     )
 )
 opts.Add(EnumVariable("bits", "Target platform bits", "64", ("32", "64")))
 opts.Add(BoolVariable("use_llvm", "Use the LLVM / Clang compiler", "no"))
+opts.Add(EnumVariable("macos_arch", "Target macOS architecture", "universal", ["universal", "x86_64", "arm64"]))
 opts.Add(PathVariable("target_path", "The path where the lib is installed.", default_target_path, PathVariable.PathAccept))
 opts.Add(PathVariable("target_name", "The library name.", default_library_name, PathVariable.PathAccept))
 
@@ -90,14 +91,25 @@ if env["target"] == "debug":
 if env["platform"] == "osx":
     env["target_path"] += "osx/"
     cpp_library += ".osx"
-    env.Append(CCFLAGS=["-arch", "x86_64"])
+
+    if env["bits"] == "32":
+        raise ValueError("Only 64-bit builds are supported for the macOS target.")
+
+    if env["macos_arch"] == "universal":
+        env.Append(LINKFLAGS=["-arch", "x86_64", "-arch", "arm64"])
+        env.Append(CCFLAGS=["-arch", "x86_64", "-arch", "arm64"])
+    else:
+        env.Append(LINKFLAGS=["-arch", env["macos_arch"]])
+        env.Append(CCFLAGS=["-arch", env["macos_arch"]])
+
     env.Append(CXXFLAGS=["-std=c++17"])
-    env.Append(LINKFLAGS=["-arch", "x86_64"])
     if env["target"] == "debug":
         env.Append(CCFLAGS=["-g", "-O2"])
     else:
         env.Append(CCFLAGS=["-g", "-O3"])
 
+    arch_suffix = env["macos_arch"]
+
 elif env["platform"] in ("x11", "linux"):
     cpp_library += ".linux"
     env.Append(CCFLAGS=["-fPIC"])
@@ -107,6 +119,7 @@ elif env["platform"] in ("x11", "linux"):
     else:
         env.Append(CCFLAGS=["-g", "-O3"])
 
+    arch_suffix = str(bits)
 elif env["platform"] == "windows":
     cpp_library += ".windows"
     # This makes sure to keep the session environment variables on windows,
@@ -127,7 +140,6 @@ elif env["platform"] == "windows":
     if not(env["use_llvm"]):
         env.Append(CPPDEFINES=["TYPED_METHOD_BIND"])
 
-# determine our architecture suffix
     arch_suffix = str(bits)
 
 # suffix our godot-cpp library

test/src/example.cpp

@@ -118,7 +118,7 @@ Ref<ExampleRef> Example::extended_ref_checks(Ref<ExampleRef> p_ref) const {
 }
 
 Variant Example::varargs_func(const Variant **args, GDNativeInt arg_count, GDNativeCallError &error) {
-	UtilityFunctions::print("Varargs called with ", String::num(arg_count), " arguments");
+	UtilityFunctions::print("Varargs called with ", String::num((double)arg_count), " arguments");
 	return arg_count;
 }