diff --git a/common_lib/Makefile.am b/common_lib/Makefile.am
index 42fad275..663eef1a 100644
--- a/common_lib/Makefile.am
+++ b/common_lib/Makefile.am
@@ -1,93 +1,98 @@
 #
 # Copyright (c) 2012 Red Hat, Inc.
 #
 # Authors: Angus Salkeld
 #
 # This software licensed under BSD license, the text of which follows:
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 # - Redistributions of source code must retain the above copyright notice,
 #   this list of conditions and the following disclaimer.
 # - Redistributions in binary form must reproduce the above copyright notice,
 #   this list of conditions and the following disclaimer in the documentation
 #   and/or other materials provided with the distribution.
 # - Neither the name of the MontaVista Software, Inc. nor the names of its
 #   contributors may be used to endorse or promote products derived from this
 #   software without specific prior written permission.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 # THE POSSIBILITY OF SUCH DAMAGE.
 
 # Functions
 uc=$(shell echo $1 | tr a-z A-Z)
 get_soname=$(if $($(call uc,$1)_SONAME),$($(call uc,$1)_SONAME),$(SONAME))
 get_major=$(firstword $(subst ., ,$(call get_soname,$1)))
 get_sharedlibs=$(foreach lib,$(SHARED_LIBS_SO:lib%.so=%),lib$(lib).so.$(call get_soname,$(lib)))
 get_sharedlibs_two=$(foreach lib,$(SHARED_LIBS_SO:lib%.so=%),lib$(lib).so.$(call get_major,$(lib)))
 get_linker_add=$(if $($(call uc,$1)_LINKER_ADD),$($(call uc,$1)_LINKER_ADD))
 
 MAINTAINERCLEANFILES    = Makefile.in
 
 AM_CFLAGS		= -fPIC
 
 INCLUDES		= -I$(top_builddir)/include -I$(top_srcdir)/include
 
 lib_LIBRARIES		= libcorosync_common.a
 SHARED_LIBS_SO		= $(lib_LIBRARIES:%.a=%.so)
 
 libcorosync_common_a_SOURCES	= error_conversion.c
 
+SOMAJOR=4
+SOMINOR=0
+SOMICRO=0
+SONAME=${SOMAJOR}.${SOMINOR}.${SOMICRO}
+
 if BUILD_DARWIN
 
 lib%.so: lib%.a $(LIBQB_LIBS)
 	$(CC) $(DARWIN_OPTS) $(call get_linker_add,$*) -Wl,-whole-archive $^ -Wl,-no-whole-archive -o $@
 	ln -sf lib$*.so.$(call get_soname,$*) lib$*.so
 	ln -sf lib$*.so.$(call get_soname,$*) lib$*.so.$(call get_major,$*)
 
 else
 
 if BUILD_SOLARIS
 
 lib%.so.$(SONAME): lib%.a
 	$(LD) $(SOLARIS_OPTS) $(call get_linker_add,$*) -G -whole-archive $^ -no-whole-archive -o $@
 	ln -sf lib$*.so.$(call get_soname,$*) lib$*.so
 	ln -sf lib$*.so.$(call get_soname,$*) lib$*.so.$(call get_major,$*)
 
 else
 
 lib%.so: lib%.a
 	$(CC) -shared -o $@.$(call get_soname,$*) \
 		-Wl,-soname=lib$*.so.$(call get_major,$*) \
 		-Wl,-whole-archive $^ -Wl,-no-whole-archive $(LDFLAGS) $(LIBQB_LIBS) $(AM_LDFLAGS) $(call get_linker_add,$*)
 	ln -sf lib$*.so.$(call get_soname,$*) lib$*.so
 	ln -sf lib$*.so.$(call get_soname,$*) lib$*.so.$(call get_major,$*)
 
 endif
 
 endif
 
 all-local: $(get_explicit_sharedlibs) $(SHARED_LIBS_SO)
 	@echo Built shared libs
 
 install-exec-local:
 	$(INSTALL) -d $(DESTDIR)/$(libdir)
 	$(INSTALL) -m 755 $(get_sharedlibs) $(DESTDIR)/$(libdir)
 	$(CP) -a $(SHARED_LIBS_SO) $(get_sharedlibs_two) $(DESTDIR)/$(libdir)
 
 uninstall-local:
 	cd $(DESTDIR)/$(libdir)/ && \
 		rm -f $(get_sharedlibs) $(SHARED_LIBS_SO) $(get_sharedlibs_two)
 
 clean-local:
 	rm -f *.o *.a *.so* *.da *.bb *.bbg