[2342] Temporarily moved duid.{h,cc} from libdhcp++ to libdhcp_srv.

Having duid.{h, cc} in libdhcp++ causes dependency between two libraries.
Due to this dependency multi-threaded build fails because libs are created
by different threads simultaneously and race condition occurs. Libraries
should be moved to separate folders and have separate makefiles. This
complies with BIND10 structure and will make this issue goe away.

src/lib/dhcp/Makefile.am

@@ -19,7 +19,6 @@ CLEANFILES = *.gcno *.gcda
 lib_LTLIBRARIES = libb10-dhcp++.la libb10-dhcpsrv.la
 libb10_dhcp___la_SOURCES  =
 libb10_dhcp___la_SOURCES += dhcp6.h dhcp4.h
-libb10_dhcp___la_SOURCES += duid.cc duid.h
 libb10_dhcp___la_SOURCES += iface_mgr.cc iface_mgr.h
 libb10_dhcp___la_SOURCES += iface_mgr_bsd.cc
 libb10_dhcp___la_SOURCES += iface_mgr_linux.cc
@@ -41,6 +40,7 @@ libb10_dhcp___la_LDFLAGS  = -no-undefined -version-info 2:0:0
 
 libb10_dhcpsrv_la_SOURCES  = cfgmgr.cc cfgmgr.h
 libb10_dhcpsrv_la_SOURCES += addr_utilities.cc addr_utilities.h
+libb10_dhcpsrv_la_SOURCES += duid.cc duid.h
 libb10_dhcpsrv_la_SOURCES += lease_mgr.cc lease_mgr.h
 libb10_dhcpsrv_la_SOURCES += lease_mgr_factory.cc lease_mgr_factory.h
 if HAVE_MYSQL
@@ -52,8 +52,7 @@ libb10_dhcpsrv_la_SOURCES += triplet.h
 
 libb10_dhcpsrv_la_CXXFLAGS = $(AM_CXXFLAGS)
 libb10_dhcpsrv_la_CPPFLAGS = $(AM_CPPFLAGS) $(LOG4CPLUS_INCLUDES)
-libb10_dhcpsrv_la_LIBADD   = $(top_builddir)/src/lib/dhcp/libb10-dhcp++.la
-libb10_dhcpsrv_la_LIBADD  += $(top_builddir)/src/lib/asiolink/libb10-asiolink.la
+libb10_dhcpsrv_la_LIBADD   = $(top_builddir)/src/lib/asiolink/libb10-asiolink.la
 libb10_dhcpsrv_la_LIBADD  += $(top_builddir)/src/lib/util/libb10-util.la
 libb10_dhcpsrv_la_LDFLAGS  = -no-undefined -version-info 2:0:0
 if HAVE_MYSQL

src/lib/dhcp/tests/Makefile.am

@@ -29,7 +29,6 @@ TESTS =
 if HAVE_GTEST
 TESTS += libdhcp++_unittests libdhcpsrv_unittests
 libdhcp___unittests_SOURCES  = run_unittests.cc
-libdhcp___unittests_SOURCES += duid_unittest.cc
 libdhcp___unittests_SOURCES += iface_mgr_unittest.cc
 libdhcp___unittests_SOURCES += libdhcp++_unittest.cc
 libdhcp___unittests_SOURCES += option4_addrlst_unittest.cc
@@ -48,6 +47,7 @@ libdhcp___unittests_CXXFLAGS = $(AM_CXXFLAGS)
 libdhcpsrv_unittests_SOURCES  = run_unittests.cc
 libdhcpsrv_unittests_SOURCES += addr_utilities_unittest.cc
 libdhcpsrv_unittests_SOURCES += cfgmgr_unittest.cc
+libdhcpsrv_unittests_SOURCES += duid_unittest.cc
 libdhcpsrv_unittests_SOURCES += lease_mgr_factory_unittest.cc
 libdhcpsrv_unittests_SOURCES += lease_mgr_unittest.cc
 if HAVE_MYSQL