Turns out it was the semicolons at the end of the lines the if statements were in. This took make me way longer to realize than it should've. :/

XtreemNodes.depend

@@ -1,5 +1,5 @@
 # depslib dependency file v1.0
-1667158149 source:c:\development\xtreemminer\main.cpp
+1667160902 source:c:\development\xtreemminer\main.cpp
 	<stdlib.h>
 	<GL/glut.h>
 	"Utilities.h"
@@ -12,12 +12,12 @@
 	"FastNoiseLite.h"
 	<random>
 
-1667158420 c:\development\xtreemminer\include\noderenderer.h
+1667163770 c:\development\xtreemminer\include\noderenderer.h
 	"Base.h"
 	"MapBlock.h"
 	<GL/glut.h>
 
-1667156676 c:\development\xtreemminer\include\mapblock.h
+1667161818 c:\development\xtreemminer\include\mapblock.h
 	"Base.h"
 	<math.h>
 	<cstdio>