diff --git a/src/Entity.h b/src/Entity.h
index f0bae6273..f14fb3612 100644
--- a/src/Entity.h
+++ b/src/Entity.h
@@ -97,7 +97,7 @@ Vector3 Entity_GetEyePosition(struct Entity* e);
 /* (i.e. distance to eye from feet/base of the model) */
 float Entity_GetEyeHeight(struct Entity* e);
 /* Calculates the transformation matrix applied when rendering the given entity. */
-void Entity_GetTransform(struct Entity* e, Vector3 pos, Vector3 scale, struct Matrix* m);
+CC_API void Entity_GetTransform(struct Entity* e, Vector3 pos, Vector3 scale, struct Matrix* m);
 void Entity_GetPickingBounds(struct Entity* e, struct AABB* bb);
 /* Gets the current collision bounds of the given entity. */
 void Entity_GetBounds(struct Entity* e, struct AABB* bb);
diff --git a/src/ExtMath.h b/src/ExtMath.h
index 0806aabed..f4b7a6d69 100644
--- a/src/ExtMath.h
+++ b/src/ExtMath.h
@@ -20,8 +20,8 @@ float Math_SqrtF(float x);
 float Math_Mod1(float x);
 int   Math_AbsI(int x);
 
-double Math_Sin(double x);
-double Math_Cos(double x);
+CC_API double Math_Sin(double x);
+CC_API double Math_Cos(double x);
 float Math_SinF(float x);
 float Math_CosF(float x);
 
diff --git a/src/HeldBlockRenderer.c b/src/HeldBlockRenderer.c
index 4bd1676c8..981bf6b5c 100644
--- a/src/HeldBlockRenderer.c
+++ b/src/HeldBlockRenderer.c
@@ -109,21 +109,21 @@ static void HeldBlockRenderer_ProjectionChanged(void* obj) {
 	https://github.com/UnknownShadow200/ClassicalSharp/wiki/Dig-animation-details
 */
 static void HeldBlockRenderer_DigAnimation(void) {
-	float sinHalfCircle, sinHalfCircleWeird;
+	double sinHalfCircle, sinHalfCircleWeird;
 	float t, sqrtLerpPI;
 
 	t = held_time / held_period;
-	sinHalfCircle = Math_SinF(t * MATH_PI);
+	sinHalfCircle = Math_Sin(t * MATH_PI);
 	sqrtLerpPI    = Math_SqrtF(t) * MATH_PI;
 
-	held_entity.Position.X -= Math_SinF(sqrtLerpPI)       * 0.4f;
-	held_entity.Position.Y += Math_SinF((sqrtLerpPI * 2)) * 0.2f;
-	held_entity.Position.Z -= sinHalfCircle               * 0.2f;
+	held_entity.Position.X -= (float)Math_Sin(sqrtLerpPI)     * 0.4f;
+	held_entity.Position.Y += (float)Math_Sin(sqrtLerpPI * 2) * 0.2f;
+	held_entity.Position.Z -= (float)sinHalfCircle            * 0.2f;
 
-	sinHalfCircleWeird = Math_SinF(t * t * MATH_PI);
-	held_entity.RotY  -= Math_SinF(sqrtLerpPI) * 80.0f;
-	held_entity.HeadY -= Math_SinF(sqrtLerpPI) * 80.0f;
-	held_entity.RotX  += sinHalfCircleWeird    * 20.0f;
+	sinHalfCircleWeird = Math_Sin(t * t * MATH_PI);
+	held_entity.RotY  -= (float)Math_Sin(sqrtLerpPI) * 80.0f;
+	held_entity.HeadY -= (float)Math_Sin(sqrtLerpPI) * 80.0f;
+	held_entity.RotX  += (float)sinHalfCircleWeird   * 20.0f;
 }
 
 static void HeldBlockRenderer_ResetAnim(bool setLastHeld, double period) {
diff --git a/src/Model.c b/src/Model.c
index c04dd320d..3736fa806 100644
--- a/src/Model.c
+++ b/src/Model.c
@@ -198,9 +198,9 @@ void Model_DrawRotate(float angleX, float angleY, float angleZ, struct ModelPart
 	struct ModelVertex* src = &model->vertices[part->Offset];
 	VertexP3fT2fC4b* dst    = &Models.Vertices[model->index];
 
-	float cosX = Math_CosF(-angleX), sinX = Math_SinF(-angleX);
-	float cosY = Math_CosF(-angleY), sinY = Math_SinF(-angleY);
-	float cosZ = Math_CosF(-angleZ), sinZ = Math_SinF(-angleZ);
+	float cosX = (float)Math_Cos(-angleX), sinX = (float)Math_Sin(-angleX);
+	float cosY = (float)Math_Cos(-angleY), sinY = (float)Math_Sin(-angleY);
+	float cosZ = (float)Math_Cos(-angleZ), sinZ = (float)Math_Sin(-angleZ);
 	float t, x = part->RotX, y = part->RotY, z = part->RotZ;
 	
 	struct ModelVertex v;
@@ -1374,9 +1374,9 @@ static void SpiderModel_Draw(struct Entity* entity) {
 	Model_DrawPart(&spider_link);
 	Model_DrawPart(&spider_end);
 
-	rotX = Math_SinF(entity->Anim.WalkTime)     * entity->Anim.Swing * MATH_PI;
-	rotZ = Math_CosF(entity->Anim.WalkTime * 2) * entity->Anim.Swing * MATH_PI / 16.0f;
-	rotY = Math_SinF(entity->Anim.WalkTime * 2) * entity->Anim.Swing * MATH_PI / 32.0f;
+	rotX = (float)Math_Sin(entity->Anim.WalkTime)     * entity->Anim.Swing * MATH_PI;
+	rotZ = (float)Math_Cos(entity->Anim.WalkTime * 2) * entity->Anim.Swing * MATH_PI / 16.0f;
+	rotY = (float)Math_Sin(entity->Anim.WalkTime * 2) * entity->Anim.Swing * MATH_PI / 32.0f;
 	Models.Rotation = ROTATE_ORDER_XZY;
 
 	Model_DrawRotate(rotX,  quarterPi  + rotY, eighthPi + rotZ, &spider_leftLeg, false);
diff --git a/src/String.h b/src/String.h
index 0b65fe39c..e715918cd 100644
--- a/src/String.h
+++ b/src/String.h
@@ -30,7 +30,7 @@ static CC_INLINE String String_Init(STRING_REF char* buffer, int length, int cap
 }
 
 /* Counts number of characters until a '\0' is found. */
-int String_CalcLen(const char* raw, int capacity);
+CC_API int String_CalcLen(const char* raw, int capacity);
 /* Constructs a string from the given arguments, then sets all characters to '\0'. */
 String String_InitAndClear(STRING_REF char* buffer, int capacity);
 /* Constructs a string from a (maybe null terminated) buffer. */