From nobody Mon Sep 17 00:00:00 2001
Subject: [PATCH] Add proper header file for lexer
From: Horst von Brand <vonbrand@inf.utfsm.cl>
Date: 1127959411 -0400

Create lexer.h, move lexer declarations into it.

Include lexer.h in rpn.c and lexer.c

Update dependencies in Makefile

Signed-off-by: Horst H. von Brand <vonbrand@inf.utfsm.cl>


---

 Makefile |    3 +++
 lexer.h  |   13 +++++++++++++
 rpn.c    |    4 ++--
 3 files changed, 18 insertions(+), 2 deletions(-)
 create mode 100644 lexer.h

82af9d2042fc0995156541b90bda1b949daafc9d
diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -4,3 +4,6 @@
 
 rpn: rpn.o stack.o lexer.o
 	$(CC) $(CFLAGS) $^ -o $@
+	
+rpn.o lexer.o: lexer.h
+	
diff --git a/lexer.h b/lexer.h
new file mode 100644
--- /dev/null
+++ b/lexer.h
@@ -0,0 +1,13 @@
+/*
+ * lexer.h -- Lexical analysis for RPN
+ *
+ * (c) 2005 Horst H. von Brand
+ * Licensed under the Open Software License version 2.1
+ */
+
+#ifndef LEXER_H
+#define LEXER_H
+extern double val;
+
+extern int getsym(void);
+#endif /* LEXER_H */
diff --git a/rpn.c b/rpn.c
--- a/rpn.c
+++ b/rpn.c
@@ -7,14 +7,14 @@
 
 #include <stdio.h>
 
+#include "lexer.h"
+
 double val;
 
 extern double pop(void);
 extern void push(double);
 extern void clear(void);
 
-extern int getsym(void);
-
 int main(void)
 {
 	int sym;