change linking fix to also cover Solaris

jitterbug/jitterbug.spec

@@ -59,10 +59,12 @@ AutoReqProv:  no
     CC="%{l_cc}" \
     CFLAGS="%{l_cflags -O} -I%{l_prefix}/include" \
     LDFLAGS="-L%{l_prefix}/lib" \
-    LIBS="-L%{l_prefix}/lib -lz" \
     ./configure \
         --prefix=%{l_prefix} \
         --sysconfdir=%{l_prefix}/etc/jitterbug
+    %{l_rpmtool} subst \
+        's;^\(LIBS *=.*\)$;\1 -L%{l_prefix}/lib -lz;' \
+        -- Makefile
     %{l_make} %{l_mflags -O}
 
 %install