Re: [PATCH] perl/Makefile: use 'installsitelib' even with NO_PERL_MAKEMAKER

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On Mon, Feb 06, 2012 at 02:38:20PM -0500, Nicholas Harteau wrote:

> > perl/Makefile installs Git.pm into $prefix/lib when ExtUtils::MakeMaker
> > is not present.  perl can't "use Git;" in that scenario, as $prefix/lib
> > isn't in perl's include path.
> > 
> > This patch installs Git.pm into perl's 'installsitelib', generally
> > $prefix/lib/perl5/site_perl, so that even when ExtUtils::MakeMaker isn't
> > present, Git.pm gets installed in a location where 'use Git;' just
> > works.
> [...]
> > ifdef NO_PERL_MAKEMAKER
> > -instdir_SQ = $(subst ','\'',$(prefix)/lib)
> > +instdir_SQ = $(subst ','\'',$(subst installsitelib=,'',$(shell $(PERL_PATH_SQ) -V:installsitelib)))

Isn't this a regression if I am a non-root user installing into
$HOME/local or similar? With MakeMaker, I end up with this in my
perl.mak:

  PREFIX = /home/peff/local
  ...
  SITEPREFIX = $(PREFIX)
  ...
  INSTALLSITELIB = $(SITEPREFIX)/share/perl/5.14.2

which works great.  Before your patch, without MakeMaker, git would
install into /home/peff/local/lib, which is also OK. But with your
patch, it will try:

  $ perl -V:installsitelib
  installsitelib='/usr/local/share/perl/5.14.2';

which is not writable by me, and the install will fail.

I know it's more convenient for some uses, because we know that
installsitelib will be in perl's @INC. But git has always installed out
of the box for non-root users, and I don't think we want to change that.

-Peff
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