diff -Naur bzip2-1.0.3/Makefile bzip2-1.0.3-dynamic/Makefile
--- bzip2-1.0.3/Makefile	2005-02-17 12:28:24.000000000 +0100
+++ bzip2-1.0.3-dynamic/Makefile	2005-05-26 17:35:15.000000000 +0200
@@ -8,10 +8,10 @@
 LDFLAGS=
 
 BIGFILES=-D_FILE_OFFSET_BITS=64
-CFLAGS=-Wall -Winline -O -g $(BIGFILES)
+CFLAGS=-Wall -Winline -O2  $(BIGFILES)
 
 # Where you want it installed when you do 'make install'
-PREFIX=/usr
+PREFIX=/usr/local
 
 
 OBJS= blocksort.o  \
@@ -22,7 +22,7 @@
       decompress.o \
       bzlib.o
 
-all: libbz2.a bzip2 bzip2recover test
+all: libbz2.a libbz2.so bzip2 bzip2recover test
 
 bzip2: libbz2.a bzip2.o
 	$(CC) $(CFLAGS) $(LDFLAGS) -o bzip2 bzip2.o -L. -lbz2
@@ -39,8 +39,15 @@
 		$(RANLIB) libbz2.a ; \
 	fi
 
+libbz2.so: $(OBJS)
+	rm -f libbz2.so
+	$(CC) $(CFLAGS) -shared -o libbz2.so $(OBJS)
+
 check: test
-test: bzip2
+test: bzip2 libbz2.so
+	export LD_LIBRARY_PATH=$(PWD); make test-bootstrap
+	
+test-bootstrap: 
 	@cat words1
 	./bzip2 -1  < sample1.ref > sample1.rb2
 	./bzip2 -2  < sample2.ref > sample2.rb2
@@ -56,7 +63,7 @@
 	cmp sample3.tst sample3.ref
 	@cat words3
 
-install: bzip2 bzip2recover
+install: bzip2 bzip2recover 
 	if ( test ! -d $(PREFIX)/bin ) ; then mkdir -p $(PREFIX)/bin ; fi
 	if ( test ! -d $(PREFIX)/lib ) ; then mkdir -p $(PREFIX)/lib ; fi
 	if ( test ! -d $(PREFIX)/man ) ; then mkdir -p $(PREFIX)/man ; fi
@@ -76,15 +83,16 @@
 	chmod a+r $(PREFIX)/include/bzlib.h
 	cp -f libbz2.a $(PREFIX)/lib
 	chmod a+r $(PREFIX)/lib/libbz2.a
+	install -m 755 -o 0:0 libbz2.so $(PREFIX)/lib
 	cp -f bzgrep $(PREFIX)/bin/bzgrep
-	ln $(PREFIX)/bin/bzgrep $(PREFIX)/bin/bzegrep
-	ln $(PREFIX)/bin/bzgrep $(PREFIX)/bin/bzfgrep
+	ln -f $(PREFIX)/bin/bzgrep $(PREFIX)/bin/bzegrep
+	ln -f $(PREFIX)/bin/bzgrep $(PREFIX)/bin/bzfgrep
 	chmod a+x $(PREFIX)/bin/bzgrep
 	cp -f bzmore $(PREFIX)/bin/bzmore
-	ln $(PREFIX)/bin/bzmore $(PREFIX)/bin/bzless
+	ln -f $(PREFIX)/bin/bzmore $(PREFIX)/bin/bzless
 	chmod a+x $(PREFIX)/bin/bzmore
 	cp -f bzdiff $(PREFIX)/bin/bzdiff
-	ln $(PREFIX)/bin/bzdiff $(PREFIX)/bin/bzcmp
+	ln -f $(PREFIX)/bin/bzdiff $(PREFIX)/bin/bzcmp
 	chmod a+x $(PREFIX)/bin/bzdiff
 	cp -f bzgrep.1 bzmore.1 bzdiff.1 $(PREFIX)/man/man1
 	chmod a+r $(PREFIX)/man/man1/bzgrep.1
@@ -96,7 +104,7 @@
 	echo ".so man1/bzdiff.1" > $(PREFIX)/man/man1/bzcmp.1
 
 clean: 
-	rm -f *.o libbz2.a bzip2 bzip2recover \
+	rm -f *.o libbz2.a libbz2.so bzip2 bzip2recover \
 	sample1.rb2 sample2.rb2 sample3.rb2 \
 	sample1.tst sample2.tst sample3.tst
 
diff -Naur bzip2-1.0.3/words3 bzip2-1.0.3-dynamic/words3
--- bzip2-1.0.3/words3	2004-10-09 13:29:33.000000000 +0200
+++ bzip2-1.0.3-dynamic/words3	2005-05-26 17:38:25.000000000 +0200
@@ -2,7 +2,8 @@
 If you got this far and the "cmp"s didn't complain, it looks
 like you're in business.  
 
-To install in /usr/bin, /usr/lib, /usr/man and /usr/include, type
+To install in /usr/local/bin, /usr/local/lib, /usr/local/man and
+/usr/local/include, type
    make install
 To install somewhere else, eg, /xxx/yyy/{bin,lib,man,include}, type 
    make install PREFIX=/xxx/yyy