Fix Perl module Module::Pluggable such that it can find plugins that live in
symlinked directories.

Patch borrowed/adapted from Nixpkgs.

--- Module-Pluggable-5.2/lib/Module/Pluggable/Object.pm   2015-04-08 23:28:48.120164135 -0500
+++ Module-Pluggable-5.2/lib/Module/Pluggable/Object.pm   2015-04-08 23:30:27.032166704 -0500
@@ -164,7 +164,7 @@
         my $sp = catdir($dir, (split /::/, $searchpath));

         # if it doesn't exist or it's not a dir then skip it
-        next unless ( -e $sp && -d _ ); # Use the cached stat the second time
+        next unless ( -e $sp );

         my @files = $self->find_files($sp);

@@ -279,7 +279,7 @@
                              (my $path = $File::Find::name) =~ s#^\\./##;
                              push @files, $path;
                            }
-                      }, $search_path );
+                      }, "$search_path/." );
     }
     #chdir $cwd;
     return @files;></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=4d08f984e93876bd205de0eddc3b82042a64aff6'>refs</a><a class='active' href='/guix/log/scripts'>log</a><a href='/guix/tree/scripts?id=4d08f984e93876bd205de0eddc3b82042a64aff6'>tree</a><a href='/guix/commit/scripts?id=4d08f984e93876bd205de0eddc3b82042a64aff6'>commit</a><a href='/guix/diff/scripts?id=4d08f984e93876bd205de0eddc3b82042a64aff6'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/scripts'>
<input type='hidden' name='id' value='4d08f984e93876bd205de0eddc3b82042a64aff6'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=4d08f984e93876bd205de0eddc3b82042a64aff6'>root</a>/<a href='/guix/log/scripts?id=4d08f984e93876bd205de0eddc3b82042a64aff6'>scripts</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/scripts?id=4d08f984e93876bd205de0eddc3b82042a64aff6&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-12-11 19:06:53 +0100'>2020-12-11</span></td><td><a href='/guix/commit/scripts?id=fd247542215fbd10f28980f3d5255014b150e95a'>build: 'script/guix' uses our own 'guile' executable.</a><span class='msg-avail'>...<span class='msg-tooltip'>* Makefile.am (do_subst): Substitute @abs_top_builddir@.
* scripts/guix.in: Use it.
</span></span></td><td>Ludovic Courtès</td></tr>
ommit/nix/libstore/sqlite.cc?id=b1fd0ab73425e682a0a1404da6963f47a033bb34'>daemon: Improve the SQLite wrapper API.</a><span class='msg-avail'>...<span class='msg-tooltip'>In particular, this eliminates a bunch of boilerplate code.

Also integrates these Nix commits:

  80da7a6 Probably fix SQLITE_BUSY errors
  37a337b throwSQLiteError(): Check for SIGINT so we don't loop forever

Co-authored-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Eelco Dolstra</td></tr>
<tr><td><span title='2016-10-28 22:30:17 +0200'>2016-10-28</span></td><td><a href='/guix/commit/nix/libstore/sqlite.cc?id=7bed5d91dea6ecff565d51a021e6f99718d04f86'>daemon: Factor out SQLite handling.</a><span class='msg-avail'>...<span class='msg-tooltip'>* nix/libstore/local-store.cc: Move SQLite code to...
* nix/libstore/sqlite.cc, nix/libstore/sqlite.hh: ... here.  New files.
* nix/local.mk (libstore_a_SOURCES): Add sqlite.cc.
(libstore_headers): Add sqlite.hh.

Co-authored-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Eelco Dolstra</td></tr>