From ea968820ef31dc77eae9b4219ae5930b34f6d0bd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Tue, 20 Jul 2021 15:18:26 +0200
Subject: Update Makefile

---
 Makefile | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 1bd8fb8..3d1e305 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,11 @@
-fref: fref.lex
-	lex fref.lex
-	cc -std=c89 -O2 -o fref lex.yy.c -lfl
+CFLAGS += -std=c89
+LDFLAGS += -lfl
+
+fref: lex.yy.c
+	$(CC) $(CFLAGS) -o fref lex.yy.c $(LDFLAGS)
+
+lex.yy.c: fref.lex
+	flex fref.lex
 
 install:
 	install fref /usr/local/bin
-- 
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