did i really just notice this?

Makefile

@@ -2,13 +2,13 @@ CC = gcc
 
 all:
 	mkdir -p build
-	gcc src/yes.c -Ofast -o build/yes
-	gcc src/true.c -O2 -o build/true
-	gcc src/false.c -O2 -o build/false
-	gcc src/touch.c -O2 -o build/touch
-	gcc src/whoami.c -O2 -o build/whoami
-	gcc src/cp.c -O2 -o build/cp
-	gcc src/cat.c -O2 -o build/cat
-	gcc src/rm.c -O2 -o build/rm
+	${CC} src/yes.c -Ofast -o build/yes
+	${CC} src/true.c -O2 -o build/true
+	${CC} src/false.c -O2 -o build/false
+	${CC} src/touch.c -O2 -o build/touch
+	${CC} src/whoami.c -O2 -o build/whoami
+	${CC} src/cp.c -O2 -o build/cp
+	${CC} src/cat.c -O2 -o build/cat
+	${CC} src/rm.c -O2 -o build/rm
 clean:
 	rm -rf build