- # we want to override any original directories, place dirpathname first!
- eval "$_varname=\"$_dirpathname:\${$_varname}\""
+ # We want to override any original directories, place dirpathname first!
+ # We want to prevent duplicates due to .bashrc reentrancy across fork(2)s.
+ eval "_varval=\":\${$_varname}:\""
+ until [ "$_varval" = "$_varvalold" ];do
+ _varvalold="$_varval"
+ eval "_varval=\"$(echo "$_varval"|sed "s#:$_dirpathname:#:#g")\""
+ done
+ eval "$_varname=\"$_dirpathname$(echo "$_varval"|sed "s#:\$##g")\""