From e9f603063cdd2d3c7c7f0801078e22158e6bad1d Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Thu, 16 Sep 2021 16:13:12 +0200
Subject: Improve makefile
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
 Makefile  | 9 ++++++++-
 config.mk | 4 +++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index ae36177..10de910 100644
--- a/Makefile
+++ b/Makefile
@@ -3,9 +3,13 @@
 CONFIGFILE = config.mk
 include $(CONFIGFILE)
 
+
 all: asroot
 asroot.o: asroot.c arg.h
 
+.c.o:
+	$(CC) -c -o $@ $< $(CFLAGS) $(CPPFLAGS)
+
 asroot: asroot.o
 	$(CC) -o $@ asroot.o $(LDFLAGS)
 
@@ -24,6 +28,9 @@ uninstall:
 	-rm -f -- "$(DESTDIR)$(MANPREFIX)/man8/asroot.8"
 
 clean:
-	-rm -f -- asroot.o asroot
+	-rm -f -- asroot *.o *.su
+
+.SUFFIXES:
+.SUFFIXES: .o .c
 
 .PHONY: all install post-install uninstall clean
diff --git a/config.mk b/config.mk
index 90c3672..dafaf0a 100644
--- a/config.mk
+++ b/config.mk
@@ -1,8 +1,10 @@
 PREFIX    = /usr
 MANPREFIX = $(PREFIX)/share/man
 
+CC = cc
+
 CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -D_GNU_SOURCE
-CFLAGS   = -std=c99 -Wall -O2 $(CPPFLAGS)
+CFLAGS   = -std=c99 -Wall -O2
 LDFLAGS  = -s -lcrypt
 
 
-- 
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