# environment related stuff

set ad_hdl_dir [file normalize [file join [file dirname [info script]] "../.."]]

# assuming that ghdl is cloned next to hdl repository
set ad_ghdl_dir [file normalize [file join [file dirname [info script]] "../../../ghdl"]]


if [info exists ::env(ADI_HDL_DIR)] {
  set ad_hdl_dir [file normalize $::env(ADI_HDL_DIR)]
}

if [info exists ::env(ADI_GHDL_DIR)] {
  set ad_ghdl_dir [file normalize $::env(ADI_GHDL_DIR)]
}


# This helper pocedure retrieves the value of varible from environment if exists,
# other case returns the provided default value
#  name - name of the environment variable
#  default_value - returned vale in case environment variable does not exists
proc get_env_param {name default_value} {
  if [info exists ::env($name)] {
    puts "Getting from environment the parameter: $name=$::env($name) "
    return $::env($name)
  } else {
    return $default_value
  }
}