--- Makefile.in.orig	2007-12-02 12:26:02.000000000 -0800
+++ Makefile.in	2007-12-02 12:47:58.000000000 -0800
@@ -64,6 +64,7 @@
 # TODO: should probably check for bison and flex in configure
 BISON = bison
 FLEX = flex
+LN = ln -s
 BUILD_BMI_TCP = @BUILD_BMI_TCP@
 BUILD_GM = @BUILD_GM@
 BUILD_MX = @BUILD_MX@
@@ -163,6 +164,8 @@
 REDHAT_RELEASE = @REDHAT_RELEASE@
 NPTL_WORKAROUND = @NPTL_WORKAROUND@
 STRICT_CFLAGS = @STRICT_CFLAGS@
+SO_LIBS = -lcrypt -lssl  -lpthread
+SO_VER = 2.0
 # for Solaris:
 # LIBS += -lsocket -lnsl
 
@@ -436,8 +439,10 @@
 LIBRARIES :=
 LIBRARIES_THREADED :=
 ifeq ($(build_shared),yes)
-LIBRARIES_SHARED = lib/libpvfs2.so
+LIBRARIES_SHARED = lib/libpvfs2.so.$(SO_VER)
 LIBRARIES += $(LIBRARIES_SHARED)
+LIBRARIES_THREADED_SHARED = lib/libpvfs2-threaded.so.$(SO_VER)
+LIBRARIES_THREADED += $(LIBRARIES_THREADED_SHARED)
 endif
 ifeq ($(build_static),yes)
 LIBRARIES_STATIC = lib/libpvfs2.a
@@ -628,16 +633,16 @@
 	$(E)ar rcs $@ $(LIBTHREADEDOBJS)
 
 # rule for building the pvfs2 library
-lib/libpvfs2.so: $(LIBPICOBJS)
+lib/libpvfs2.so.$(SO_VER): $(LIBPICOBJS)
 	$(Q) "  LDSO		$@"
 	$(E)$(INSTALL) -d lib
-	$(E)$(LDSHARED) -o $@ $(LIBPICOBJS)
+	$(E)$(LDSHARED) -Wl,-soname,libpvfs2.so.$(SO_VER) -o $@ $(LIBPICOBJS) $(SO_LIBS)
 
 # rule for building the pvfs2 _multithreaded_ library
-lib/libpvfs2-threaded.so: $(LIBTHREADEDPICOBJS)
+lib/libpvfs2-threaded.so.$(SO_VER): $(LIBTHREADEDPICOBJS)
 	$(Q) "  LDSO		$@"
 	$(E)$(INSTALL) -d lib
-	$(E)$(LDSHARED) -o $@ $(LIBTHREADEDPICOBJS)
+	$(E)$(LDSHARED) -Wl,-soname,libpvfs2-threaded.so.$(SO_VER) -o $@ $(LIBTHREADEDPICOBJS) $(SO_LIBS)
 
 # rule for building the pvfs2 server library
 lib/libpvfs2-server.a: $(SERVEROBJS)
@@ -896,6 +901,7 @@
 
 	install -d $(libdir)
 	install -m 755 $(LIBRARIES) $(libdir)
+	install -m 755 $(LIBRARIES_THREADED) $(libdir)
 
 ifdef TARGET_OS_DARWIN
 #       TOC needs to be regenerated in libs after they get moved