Merge pull request #14 from UB-CSE443/Sprint1-punctuation/grouping-FE-t#09

* Added .gitignore
* Makefile - fixed warnings
t#09

.gitignore

@@ -0,0 +1,4 @@
+*.tok
+*.o
+alpha
+flex.h

Makefile

@@ -1,21 +1,20 @@
 CC := gcc
 FLEX := flex
 LEX := lexicalStructure.lex
-EXE := runner
+EXE := alpha
 CFLAGS := -std=c99 -Wall
 CPPFLAGS :=
 
-runner: flex.o runner.o
-	$(CC) -o runner runner.o flex.o
+build: lex.yy.c runner.o runner
+
+lex.yy.c: lexicalStructure.lex
+	$(FLEX) -o lex.yy.c $(LEX)
 
 runner.o: runner.c runner.h flex.h
 	$(CC) $(CFLAGS) -o runner.o -c runner.c
 
-flex.o: lex.yy.c typedefs.h
-	$(CC) $(CFLAGS) -o flex.o -c lex.yy.c
-
-lex.yy.c: lexicalStructure.lex
-	$(FLEX) -o lex.yy.c $(LEX)
+runner: lex.yy.c runner.o
+	$(CC) -o $(EXE) runner.o lex.yy.c
 
 debug: CFLAGS += -DDEBUG=1
 debug: clean runner