idlastro / Miscellaneous (Non-Astronomy) Procedures: ASTROLIB

[Source code]

NAME
ASTROLIB
PURPOSE
Add the non-standard system variables used by the IDL Astronomy Library
EXPLANATION
Also defines the environment variable ASTRO_DATA pointing to the 
directory containing data files  associated with the IDL Astronomy 
library (system dependent -- user must edit the third line in the
program below).
CALLING SEQUENCE
ASTROLIB
INPUTS
None.
OUTPUTS
None.
METHOD
The non-standard system variables !PRIV, !TEXTUNIT, and 
!TEXTOUT are added using DEFSYSV.
REVISION HISTORY
Written, Wayne Landsman, July 1986.
Use DEFSYSV instead of ADDSYSVAR           December 1990
Test for system variable existence before definition    July 2001
Assume since V55, remove VMS support  W. Landsman   Sep 2006
Remove !Debug, comment out ASTRO_DATA definition  WL  Jan 2009