/ENVIRONMENT[=file-spec] D=Determined by attributes

 /NOENVIRONMENT

 Controls whether the compiler produces an  environment  file  in
 which  declarations  and definitions made at the outermost level
 of a compilation unit are saved.  If the file-spec  is  omitted,
 the  default  file  name  is the same as the source program; the
 default  file  type  is  .PEN,  an  abbreviation   for   "Pascal
 Environment."

 You can provide a different name for  the  environment  file  by
 including  an  OpenVMS file specification after the /ENVIRONMENT
 qualifier, as in /ENVIRONMENT=MASTER.PEN.

 The /ENVIRONMENT qualifier overrides the  ENVIRONMENT  attribute
 in  the  source program or module.  You can use the /ENVIRONMENT
 qualifier to  suppress  the  creation  of  an  environment  file
 dictated  by  an ENVIRONMENT attribute, or to change the name of
 an environment file specified by an ENVIRONMENT attribute.

 By  default,  the  attributes  in  the  source  file  or  module
 determine  whether  an environment file is produced; however, if
 the /ENVIRONMENT qualifier is  specified  at  compile  time,  an
 environment file will always be created.

 VSI Pascal accepts environment  files  that  were  created  with
 previous  versions  of the compiler.  However, programs compiled
 with  previous  versions  of  the  compiler   may   not   accept
 environment files created by the current version of VSI Pascal.