🚀 go-pugleaf

In article <Bz5M1C.Kns@dscomsa.desy.de>, Hallam@zeus02.desy.de writes...
> There is a difference in the behaviour of the C compiler, The VAX compiler
> was lax about insisting that extern variables be declared at some point
> (ie without the extern part).

     There is a CC qualifier available for controlling the model used for
extern objects.  You can get behavior identical to VAX C's by using it.

> Bit of a silly C feature I think, a declaration should be a declaration.

     A declaration is not a definition, and the old sloppy code was what
was silly (for C; it matched the FORTRAN common block behavior).  The
method used as the default by DEC C is sanctioned by the C standard.  If
you argue that /standard=vaxc ought to imply /extern_model=common_block
for better VAX C compatibility then I might agree with you, but the
current default is more appropriate for ANSI mode.  There is also a
#pragma directive for controlling this on a case-by-case basis.

		Pat Rankin, rankin@eql.caltech.edu