--- a/makefile
+++ b/makefile
@@ -8,11 +8,15 @@ MANDIR=$(PREFIX)/share/man/man1
 OBJ=obj
 SRC=.
 
-DPKG_BUILDFLAGS := $(shell command -v dpkg-buildflags 2> /dev/null)
-ifdef DPKG_BUILDFLAGS
-CFLAGS:=$(shell dpkg-buildflags --get CFLAGS)
-LDFLAGS:=$(shell dpkg-buildflags --get LDFLAGS)
-endif
+CFLAGS ?= -O2
+LDFLAGS += -fPIC -shared -Wl,-soname,libjhead.so.1
+
+TARGET = libjhead.so.1.0.0
+TARGET0        = libjhead.so
+TARGET1        = libjhead.so.1
+TARGET2 = libjhead.so.1.0
+
++all: objdir jhead $(TARGET)
 
 # To enable electric fence, set ELECTRIC_FENCE=1
 ifeq ($(ELECTRIC_FENCE),1)
@@ -31,7 +35,7 @@ objs = $(OBJ)/jhead.o $(OBJ)/jpgfile.o $(OBJ)/jpgqguess.o $(OBJ)/paths.o \
 	$(OBJ)/exif.o $(OBJ)/iptc.o $(OBJ)/gpsinfo.o $(OBJ)/makernote.o
 
 $(OBJ)/%.o:$(SRC)/%.c objdir
-	${CC} $(CFLAGS) $(CPPFLAGS) -c $< -o $@
+	${CC} -fPIC $(CFLAGS) $(CPPFLAGS) -c $< -o $@
 
 jhead: $(objs) jhead.h
 	${CC} $(LDFLAGS) -o jhead $(objs) -lm
@@ -44,3 +48,9 @@ install: all
 	install -m 0755 jhead $(BINDIR)
 	install -m 0644 $(docs) $(DOCDIR)
 	install -m 0644 jhead.1 $(MANDIR)
+
+$(TARGET): $(objs) jhead
+	${CC} $(LDFLAGS) $(LFLAGS) -o $(TARGET) $(objs)
+	ln -s ${TARGET} ${TARGET0}
+	ln -s ${TARGET} ${TARGET1}
+	ln -s ${TARGET} ${TARGET2}