From 7addac8d049f673edcbdd23cf42eef7919c52ac1 Mon Sep 17 00:00:00 2001
From: Florian Franzmann <siflfran@hawo.stw.uni-erlangen.de>
Date: Thu, 20 Mar 2014 23:19:55 +0000
Subject: [PATCH 1/2] make FLAGS settable from the environment

- also remove redundant rule bodies
- declare all and install PHONY
- correctly set LDLIBS so linking works with recent linkers
- correctly set and use PREFIX
---
 Makefile | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/Makefile b/Makefile
index 94fa21e..35af52b 100644
--- a/Makefile
+++ b/Makefile
@@ -19,18 +19,23 @@
 # User-editable options:
 
 # Change this to suit your preferences (maybe add -march=cputype)	
-CXXFLAGS=-Wall -O3 -fPIC -DPIC -g
+CXXFLAGS ?= -O3 -g
+
+CPPFLAGS += -DPIC
+
+CXXFLAGS += -fPIC
+LDLIBS=-lstdc++ -lm
 
 # This is where it will be installed
-PREFIX=/usr/local/bin/
-LADSPA_PREFIX=/usr/local/lib/ladspa/
+PREFIX ?= /usr/local/
+LADSPA_PREFIX ?= /usr/local/lib/ladspa/
 
 # End of user-editable options
 
 all: vlevel-bin vlevel-ladspa.so
 
 install: all
-	cp -f vlevel-bin $(PREFIX)
+	cp -f vlevel-bin $(PREFIX)/bin/
 	mkdir -p $(LADSPA_PREFIX)
 	cp -f vlevel-ladspa.so $(LADSPA_PREFIX)
 
@@ -41,17 +46,13 @@ vlevel-ladspa.so: vlevel-ladspa.o volumeleveler.o
 	$(CXX) $(CXXFLAGS) -shared -o vlevel-ladspa.so vlevel-ladspa.o volumeleveler.o
 
 vlevel-ladspa.o: vlevel-ladspa.cpp volumeleveler.h vlevel-ladspa.h vlevel.h ladspa.h
-	$(CXX) $(CXXFLAGS) -c vlevel-ladspa.cpp
 
 vlevel-bin: volumeleveler.o commandline.o vlevel-bin.o vlevel.h
-	$(CXX) $(CXXFLAGS) -o vlevel-bin vlevel-bin.o volumeleveler.o commandline.o
 
 volumeleveler.o: volumeleveler.cpp volumeleveler.h vlevel.h
-	$(CXX) $(CXXFLAGS) -c volumeleveler.cpp
 
 vlevel-bin.o: vlevel-bin.cpp volumeleveler.h commandline.h vlevel.h
-	$(CXX) $(CXXFLAGS) -c vlevel-bin.cpp
 
 commandline.o: commandline.cpp commandline.h
-	$(CXX) $(CXXFLAGS) -c commandline.cpp
 
+.PHONY: all install
-- 
1.9.0


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