Bug #24822 for Errno: Errno is shadowed by core version

Tue Feb 06 13:09:31 2007 mschwern [...] cpan.org - Ticket created

Subject:

Errno is shadowed by core version

Errno is part of the perl core as of 5.8.1. The CPAN version will be shadowed by the core version as the core library paths, by default, will come before the site paths. Users can work around this, if they happen to notice the install did not take, by using "make install UNINST=1" but that can have unexpected consequences if used widely and is not encouraged. To avoid the shadowing problem Errno should install itself to the core library path by default for those versions of Perl which ship with Errno. This is done by passing the following to WriteMakefile(). INSTALLDIRS => ($] >= 5.008001 ? 'perl' : 'site')

Fri Feb 09 08:05:16 2007 jdhedden [...] cpan.org - Correspondence added

On Tue Feb 06 13:09:31 2007, MSCHWERN wrote: Show quoted text

> Errno is part of the perl core as of 5.8.1. The CPAN version will be > shadowed by the core version as the core library paths, by default, will > come before the site paths. Users can work around this, if they happen > to notice the install did not take, by using "make install UNINST=1" but > that can have unexpected consequences if used widely and is not

encouraged. Show quoted text

> > To avoid the shadowing problem Errno should install itself to the core > library path by default for those versions of Perl which ship with > Errno. This is done by passing the following to WriteMakefile(). > > INSTALLDIRS => ($] >= 5.008001 ? 'perl' : 'site')

There is another problem here, as well. In core, Errno.pm is installed in $Config{archlibexp}, but the above will put it in $Config{privlibexp}. Therefore I added 'use Config', and added the following to WriteMakefile(): INSTALLDIRS => 'perl', INSTALLPRIVLIB => $Config{archlibexp}, To conditionalize it as above, I guess you'd need: INSTALLDIRS => ($] >= 5.008001 ? 'perl' : 'site'), INSTALLPRIVLIB => ($] >= 5.008001 ? $Config{archlibexp} : $Config{sitelibexp}),

--- Errno-1.10/Makefile.PL 2006-12-27 09:32:26.000000000 -0500 +++ Errno-1.10/Makefile.PL.patched 2007-02-09 08:01:36.000000000 -0500 @@ -1,5 +1,7 @@ use ExtUtils::MakeMaker; +use Config; + @MAN3PODS = ($^O eq 'VMS' or grep { /PERL_CORE=1/ } @ARGV) ? (MAN3PODS => {}) : (); WriteMakefile( @@ -13,6 +15,8 @@ SUFFIX => '.gz', DIST_DEFAULT => 'd/Errno.pm tardist', }, + INSTALLDIRS => ($] >= 5.008001 ? 'perl' : 'site'), + INSTALLPRIVLIB => ($] >= 5.008001 ? $Config{archlibexp} : $Config{sitelibexp}), @MAN3PODS, );

Fri Feb 09 08:05:30 2007 The RT System itself - Status changed from 'new' to 'open'