This directory contains wrappers for general system tools called from within Xilinx IDE (ISE or Vivado). The wrappers reset the environment used inside the IDE to a very basic default environment with
unset LD_LIBRARY_PATH
export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
and finally execute the chosen tool via exec like
exec firefox "$@"
This ensures that these tools work properly and don't fail due to conflicting library versions.