diff --git a/library/scripts/adi_env.tcl b/library/scripts/adi_env.tcl
new file mode 100644
index 000000000..ed79b8dd0
--- /dev/null
+++ b/library/scripts/adi_env.tcl
@@ -0,0 +1,14 @@
+
+# environment related stuff
+
+set ad_hdl_dir  ".."
+set ad_phdl_dir ".."
+
+if [info exists ::env(ADI_HDL_DIR)] {
+  set ad_hdl_dir $::env(ADI_HDL_DIR)
+}
+
+if [info exists ::env(ADI_PHDL_DIR)] {
+  set ad_phdl_dir $::env(ADI_PHDL_DIR)
+}
+