Missing includes needed for Linux.

src/main.c

@@ -44,6 +44,7 @@
 #include "buffers/gfx_output_buffer.h"
 #include <bridge/gfxdebuggerbridge.h>
 #include "enhancements/freecam/freecam.h"
+#include "port/interpolation/FrameInterpolation.h"
 #include "engine/wasm.h"
 #include "port/Game.h"
 #include "engine/Matrix.h"

src/math_util_2.c

@@ -15,6 +15,7 @@
 
 #include "port/Engine.h"
 #include "engine/Matrix.h"
+#include "port/interpolation/FrameInterpolation.h"
 
 #pragma intrinsic(sqrtf)
 

src/os/guLookAtF.c

@@ -11,6 +11,7 @@
  **************************************************************************/
 
 #include "libultra_internal.h"
+#include "port/interpolation/FrameInterpolation.h"
 
 void guLookAtF(float mf[4][4], float xEye, float yEye, float zEye, float xAt, float yAt, float zAt, float xUp,
                float yUp, float zUp) {

src/os/guPerspectiveF.c

@@ -1,4 +1,5 @@
 #include "libultra_internal.h"
+#include "port/interpolation/FrameInterpolation.h"
 
 void guPerspectiveF(float mf[4][4], u16* perspNorm, float fovy, float aspect, float near, float far, float scale) {
     float yscale;

src/racing/skybox_and_splitscreen.c

@@ -21,6 +21,7 @@
 #include "engine/courses/Course.h"
 #include "port/Game.h"
 #include "math_util.h"
+#include "src/enhancements/freecam/freecam.h"
 #include "port/interpolation/FrameInterpolation.h"
 
 Vp D_802B8880[] = {