we need the complete cppunit build

Change-Id: I71de79a7a10453da73e96793dcd58c3c64c044ee
Reviewed-on: https://gerrit.libreoffice.org/22639Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Stahl <mstahl@redhat.com>

RepositoryExternal.mk

@@ -162,7 +162,7 @@ endef
 else # !SYSTEM_CPPUNIT
 
 define gb_LinkTarget__use_cppunit
-$(call gb_LinkTarget_use_external_project,$(1),cppunit)
+$(call gb_LinkTarget_use_external_project,$(1),cppunit, full)
 
 $(call gb_LinkTarget_set_include,$(1),\
 	-I$(call gb_UnpackedTarball_get_dir,cppunit/include)\