--- Makefile.orig	2011-02-19 11:10:22.000000000 +0100
+++ Makefile	2011-02-19 22:27:39.791008472 +0100
@@ -2,30 +2,28 @@
 SHELL = /bin/sh
 
 # Compiler to use
-CC = g++
-CFLAGS = -O2
-#CFLAGS += -g -Wall
-#CFLAGS += -ansi
-#CFLAGS += -pedantic
-#CFLAGS += -std=c++0x
+#CXXFLAGS += -g -Wall
+#CXXFLAGS += -ansi
+#CXXFLAGS += -pedantic
+#CXXFLAGS += -std=c++0x
 
 # Comment out CFLAGS line below for compatability mode for 32bit file sizes
 # (less than 2GB) and systems that have compilers that treat int as 64bit
 # natively (ie: modern AIX)
-CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
+CXXFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
 
 # Uncomment CFLAGS line below if you want to compile pbzip2 without load
 # average support for systems that do not support it
-#CFLAGS += -DPBZIP_NO_LOADAVG
+#CXXFLAGS += -DPBZIP_NO_LOADAVG
 
 # Uncomment CFLAGS line below to get debug output
-#CFLAGS += -DPBZIP_DEBUG
+#CXXFLAGS += -DPBZIP_DEBUG
 
 # Comment out CFLAGS line below to disable pthread semantics in code
-CFLAGS += -D_POSIX_PTHREAD_SEMANTICS
+CXXFLAGS += -D_POSIX_PTHREAD_SEMANTICS
 
 # Comment out CFLAGS line below to disable Thread stack size customization
-CFLAGS += -DUSE_STACKSIZE_CUSTOMIZATION
+CXXFLAGS += -DUSE_STACKSIZE_CUSTOMIZATION
 
 # Comment out CFLAGS line below to explicity set ignore trailing garbage
 # default behavior: 0 - disabled; 1 - enabled (ignore garbage by default)
@@ -34,36 +32,32 @@ CFLAGS += -DUSE_STACKSIZE_CUSTOMIZATION
 #CFLAGS += -DIGNORE_TRAILING_GARBAGE=1
 
 # On some compilers -pthreads
-CFLAGS += -pthread
+CXXFLAGS += -pthread
 
 # External libraries
-LDFLAGS = -lbz2
-LDFLAGS += -lpthread
+LIBS = -lbz2
+LIBS += -lpthread
 
 # Where you want pbzip2 installed when you do 'make install'
-PREFIX = /usr
+PREFIX = $(DESTDIR)/usr
+MANDIR = $(PREFIX)/share/man
 
 all: pbzip2
 
 # Standard pbzip2 compile
 pbzip2: pbzip2.cpp BZ2StreamScanner.cpp
-	$(CC) $(CFLAGS) $^ -o pbzip2 $(LDFLAGS)
+	$(CXX) $(CXXFLAGS) $(LDFLAGS) $^ $(LIBS) -o pbzip2
 
 # Choose this if you want to compile in a static version of the libbz2 library
 pbzip2-static: pbzip2.cpp BZ2StreamScanner.cpp libbz2.a
-	$(CC) $(CFLAGS) $^ -o pbzip2 -I. -L. $(LDFLAGS)
+	$(CXX) $(CXXFLAGS) $(LDFLAGS) $^ $(LIBS) -o pbzip2 -I. -L.
 
 # Install the binary pbzip2 program and man page
 install: pbzip2
-	if ( test ! -d $(PREFIX)/bin ) ; then mkdir -p $(PREFIX)/bin ; fi
-	if ( test ! -d $(PREFIX)/man ) ; then mkdir -p $(PREFIX)/man ; fi
-	if ( test ! -d $(PREFIX)/man/man1 ) ; then mkdir -p $(PREFIX)/man/man1 ; fi
-	cp -f pbzip2 $(PREFIX)/bin/pbzip2
-	chmod a+x $(PREFIX)/bin/pbzip2
-	ln -s -f $(PREFIX)/bin/pbzip2 $(PREFIX)/bin/pbunzip2
-	ln -s -f $(PREFIX)/bin/pbzip2 $(PREFIX)/bin/pbzcat
-	cp -f pbzip2.1 $(PREFIX)/man/man1
-	chmod a+r $(PREFIX)/man/man1/pbzip2.1
+	install -d $(PREFIX)/bin
+	install -d $(MANDIR)/man1
+	install -m 755 pbzip2 $(PREFIX)/bin/pbzip2
+	install -m 644 pbzip2.1 $(MANDIR)/man1/pbzip2.1
 
 clean:
 	rm -f *.o pbzip2
