%jdupes(s) \
 _target=""; _symlinks=0; \
 %{-s:_symlinks=1;} \
 if test "$_symlinks" = 1; then \
   jdupes -q -p -H -o name -r %1 | \
   while read _file; do \
     if test -z "$_target" ; then \
       _target="$_file"; \
     else \
       if test -z "$_file" ; then \
         _target=""; \
         continue ; \
       fi ; \
       ln -sf "${_target#%{buildroot}}" "$_file"; \
     fi ; \
   done ; \
 else \
   jdupes -q -p -H -o name -L -r %1 ; \
 fi ; \
%{nil}