[galaxy-user] path issue in XML tool file

Hi,

while defining my own XML tool (.../galaxy/tools/my_tool.xml) I need, apparently?, to have a copy of the tool in the same location so that the XML section dedicated to call the command could find it (my_script.sh):

<command interpreter="sh">my_script.sh -p1 $p1 -p2 $p2 -p3 $p3</command>

is there a way to avoid such situation withou creating a wrapper and calling directly the tool/script? If I want to make a call to programs like blast, srs, etc, it won't be wise to have a copy of them in that location... For the moment, I created a simple shell script that actually calls the program required witht the arguments coming from galaxy...

thanks, Erick