On Wed, Apr 10, 2002 at 10:58:15AM -0500, Craig A. Berry wrote:
> At 09:29 AM 4/10/2002 -0400, Michael G Schwern wrote:
>
> > installfoo == foo
> > fooexp == foo
>
> I guess we'll just make installprefix 'perl_root' even though its
> distinction from prefix is meaningless on VMS.
>
> prefixexp is already defined. I had to make it 'perl_root:' with a colon
> rather then just 'perl_root' because otherwise something in Installed.pm was
> turning it into a relative path instead of using it as an absolute path.
>
> > siteprefix == prefix below which you have site_perl (which may
> > be just perl_root:)
>
> OK, there is a perl_root:[lib.site_perl] (from sitelib or installsitelib),
> so siteprefix should be perl_root:[lib] ?
siteprefix perl_root
sitelib perl_root:[lib.site_perl]
read as "the sitelib is [lib.site_perl] under the siteprefix". The
idea being you can change the siteprefix and still have something
sensible.
> > sitebin == siteprefix + directory where binary programs from CPAN
> > modules should go.
>
> installbin is currently just perl_root:[000000]. We should probably make
> sitebin the same as sitearch (sitearch='perl_root:[lib.site_perl.VMS_AXP]')
> for those rare installations where a VAX and an Alpha share an installation
> directory tree.
Err... you sure you want to install programs into lib/site_perl/VMS_AXP?
> > vendor* == don't worry about them. If configure.com doesn't
> > support them, just leave them blank and set
> > usevendorprefix to ''.
>
> Zero-length string, not undef?
I like '' instead of undef because undef, while technically false,
really means "this value is not defined" in the terinary logic sense.
'' says "Yes, I did think about this and its supposed to be false"
whereas undef suggests "maybe it's false, maybe I forgot to ask, maybe
this Config.pm is broken, maybe this Perl is too old to know about
vendor targets. Dunno."
Meanwhile, back in the real world, it means I can do:
if( $Config{usevendorprefix} ) { ... }
and not get a 'use of uninitialized value' warning.
--
Michael G. Schwern <[EMAIL PROTECTED]> http://www.pobox.com/~schwern/
Perl Quality Assurance <[EMAIL PROTECTED]> Kwalitee Is Job One
Don't treat people this way! Milk & Cheese are indestructible! You are not!
