diff -up gpac/src/Makefile.soname gpac/src/Makefile
--- gpac/src/Makefile.soname	2011-09-22 22:52:41.453724213 +0200
+++ gpac/src/Makefile	2011-09-22 22:56:31.621576300 +0200
@@ -158,12 +158,17 @@ endif
 
 
 ##libgpac library output
-LIB=libgpac.$(DYN_LIB_SUFFIX)
+LIBGPAC=libgpac.$(DYN_LIB_SUFFIX)
+LIBGPAC_SOVERSION=".0"
+LIBGPAC_SONAME=$(LIBGPAC)$(LIBGPAC_SOVERSION)
+LD_SONAME="-Wl,-soname,$(LIBGPAC_SONAME)"
 ifeq ($(CONFIG_WIN32),yes)
 #LDFLAGS+=-export-symbols libgpac.def
+LD_SONAME=
 else
 ifeq ($(CONFIG_DARWIN),yes)
-LDFLAGS+=-install_name $(prefix)/lib/$(LIB)
+LDFLAGS+=-install_name $(prefix)/lib/$(LIBGPAC)
+LD_SONAME=
 endif
 EXTRALIBS+=$(GPAC_SH_FLAGS)
 endif
@@ -181,7 +186,7 @@ SRCS := $(OBJS:.o=.c) 
 
 all: lib
 
-lib: $(LIB)
+lib: $(LIBGPAC)
 
 #there's a bunch of warnings in there, get rid of them
 mcrypt: CFLAGS= $(OPTFLAGS) -w -I"$(SRC_PATH)/include"
@@ -200,7 +205,7 @@ compositor: $(LIBGPAC_COMPOSITOR)
 	$(CC) $(CFLAGS) -c -o $@ $< 
 
 
-$(LIB): $(LIBGPAC_UTILS) $(LIBGPAC_IETF) $(LIBGPAC_BIFS) $(LIBGPAC_ODF) $(LIBGPAC_LASER) $(LIBGPAC_ISOM) $(LIBGPAC_SCENEMANAGER) $(LIBGPAC_TERMINAL) compositor scenegraph mediatools mcrypt $(OBJS)
+$(LIBGPAC): $(LIBGPAC_UTILS) $(LIBGPAC_IETF) $(LIBGPAC_BIFS) $(LIBGPAC_ODF) $(LIBGPAC_LASER) $(LIBGPAC_ISOM) $(LIBGPAC_SCENEMANAGER) $(LIBGPAC_TERMINAL) compositor scenegraph mediatools mcrypt $(OBJS)
 ifeq ($(CONFIG_DARWIN),yes)
 	libtool -s -o ../bin/gcc/libgpac_static.a $(OBJS)
 	ranlib ../bin/gcc/libgpac_static.a
@@ -218,7 +223,7 @@ depend:
 	$(CC) -MM $(CFLAGS) $(SRCS) 1>.depend
 
 clean: 
-	rm -f $(OBJS) ../bin/gcc/$(LIB)
+	rm -f $(OBJS) ../bin/gcc/$(LIBGPAC)
 	rm -rf ../bin/gcc/libgpac_static.a
 
 distclean: clean