diff --git a/Makefile b/Makefile
index a98f996..57e0457 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 P=main
 OBJECTS=libs/glad/glad.o
 CFLAGS=-g -Wall -Wextra -O0
-LDLIBS=-lglfw -lOpenGL -lm -lSDL2 
+LDLIBS=-lglfw -lOpenGL -lm
 INCLUDES=-Ilibs/glad/include/ -Ilibs/
 CC=gcc
 RM=rm -vf
@@ -10,9 +10,9 @@ RM=rm -vf
 build: clean
 	$(CC) $(CFLAGS) $(LDLIBS) $(INCLUDES) $(OBJECTS) $(P).c -o $(P)
 
-.PHONY: texturepacker
-texturepacker:
-	$(CC) $(CFLAGS) $(LDLIBS) $(INCLUDES) $(OBJECTS) tools/texturepacker.c -o texturepacker
+.PHONY: all
+headers: clean
+	$(CC) $(CFLAGS) $(LDLIBS) $(INCLUDES) $(OBJECTS) all.h -o all.h.gch
 
 .PHONY: run
 run: build
diff --git a/lib.h b/lib.h
index c9261f0..3a9ba45 100644
--- a/lib.h
+++ b/lib.h
@@ -1,6 +1,5 @@
-#ifndef TENCHU_LIB_H
-#define TENCHU_LIB_H
-
+#pragma once
+#include <GLFW/glfw3.h>
 #include <string.h>
 
 void checkCode(int code, char* errorMsg) {
@@ -113,5 +112,3 @@ unsigned int compileShaderProgram(char* vertSrcPath, char* fragSrcPath, char* ge
 
     return program;
 }
-
-#endif