L<"Reporting Problems"> below.
For information on what's new in this release, see the
-pod/perl5113delta.pod file. For more information about how to find more
+pod/perl5120delta.pod file. For more information about how to find more
specific detail about changes, see the Changes file.
=head1 DESCRIPTION
=head2 Changes and Incompatibilities
-Please see pod/perl5113delta.pod for a description of the changes and
+Please see pod/perl5120delta.pod for a description of the changes and
potential incompatibilities introduced with this release. A few of
the most important issues are listed below, but you should refer
-to pod/perl5113delta.pod for more detailed information.
+to pod/perl5120delta.pod for more detailed information.
B<WARNING:> This version is not binary compatible with prior releases of Perl.
If you have built extensions (i.e. modules that include C code)
On a related issue, old modules may possibly be affected by the changes
in the Perl language in the current release. Please see
-pod/perl5113delta.pod for a description of what's changed. See your
+pod/perl5120delta.pod for a description of what's changed. See your
installed copy of the perllocal.pod file for a (possibly incomplete)
list of locally installed modules. Also see CPAN::autobundle for one
way to make a "bundle" of your currently installed modules.
=item Directories for the perl distribution
-By default, Configure will use the following directories for 5.11.4.
+By default, Configure will use the following directories for 5.12.0.
$version is the full perl version number, including subversion, e.g.
-5.11.4 or 5.9.5, and $archname is a string like sun4-sunos,
+5.12.0 or 5.9.5, and $archname is a string like sun4-sunos,
determined by Configure. The full definitions of all Configure
variables are in the file Porting/Glossary.
"-Duserelocatableinc" is that everything is relocated. The initial
install is done to the original configured prefix.
+This option is not compatible with the building of a shared libperl
+("-Duseshrplib"), because in that case perl is linked with an hard-coded
+rpath that points at the libperl.so, that cannot be relocated.
+
=head2 Site-wide Policy settings
After Configure runs, it stores a number of common site-wide "policy"
To disable certain extensions so that they are not built, use the
-Dnoextensions=... and -Donlyextensions=... options. They both accept
-a space-separated list of extensions. The extensions listed in
+a space-separated list of extensions, such as C<IPC/SysV>. The extensions
+listed in
C<noextensions> are removed from the list of extensions to build, while
the C<onlyextensions> is rather more severe and builds only the listed
extensions. The latter should be used with extreme caution since
by hand to see if it makes any difference. If individual tests
bomb, you can run them by hand, e.g.,
- cd t ; ./perl -MTestInit op/groups.t
+ ./perl -MTestInit t/op/groups.t
Another way to get more detailed information about failed tests and
individual subtests is to cd to the t directory and run
=head1 Coexistence with earlier versions of perl 5
-Perl 5.11 is not binary compatible with earlier versions of Perl.
+Perl 5.12 is not binary compatible with earlier versions of Perl.
In other words, you will have to recompile your XS modules.
In general, you can usually safely upgrade from one version of Perl (e.g.
libraries after 5.6.0, but not for executables. TODO?) One convenient
way to do this is by using a separate prefix for each version, such as
- sh Configure -Dprefix=/opt/perl5.11.4
+ sh Configure -Dprefix=/opt/perl5.12.0
-and adding /opt/perl5.11.4/bin to the shell PATH variable. Such users
+and adding /opt/perl5.12.0/bin to the shell PATH variable. Such users
may also wish to add a symbolic link /usr/local/bin/perl so that
scripts can still start with #!/usr/local/bin/perl.
=head2 Upgrading from 5.11.0 or earlier
-B<Perl 5.11.4 is binary incompatible with Perl 5.11.1 and any earlier
+B<Perl 5.12.0 is binary incompatible with Perl 5.11.1 and any earlier
Perl release.> Perl modules having binary parts
(meaning that a C compiler is used) will have to be recompiled to be
-used with 5.11.4. If you find you do need to rebuild an extension with
-5.11.4, you may safely do so without disturbing the older
+used with 5.12.0. If you find you do need to rebuild an extension with
+5.12.0, you may safely do so without disturbing the older
installations. (See L<"Coexistence with earlier versions of perl 5">
above.)
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