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