Ensure we do not override already existing data.

OBS-URL: https://build.opensuse.org/package/show/LibreOffice:Factory/libreoffice?expand=0&rev=96

link-to-ooo-home

@@ -19,10 +19,19 @@ change_linking() {
             # if we get ourselves folder then just create it
             # it might not be around so lets be safe
             if [[ -d "${file}" ]] ; then
-                mkdir -p "${dir/${datadir}/${libdir}}"
+                dirname="${dir/${datadir}/${libdir}}"
+                # if the location is already there skip it
+                if [[ ! -e "${dirname}" ]]; then
+                    mkdir -p "${dirname}"
+                fi
                 continue
             fi
-            ln -sf "${file}" "${file/${datadir}/${libdir}}" || exit 1
+            linkfile="${file/${datadir}/${libdir}}"
+            # if the file is already there, skip it
+            # this is true when the parent folder is link
+            if [[ ! -e "${linfile}" ]]; then    
+                ln -sf "${file}" "${linfile}" || exit 1
+            fi
         done
     else
         # first just remove the symlinks