[patch] B portability macros

[p5sagit/p5-mst-13.2.git] / lib / feature.pm

diff --git a/lib/feature.pm b/lib/feature.pm
index 7ffae72..f4e2ef8 100644 (file)
--- a/lib/feature.pm
+++ b/lib/feature.pm
@@ -1,23 +1,25 @@
 package feature;
 
-our $VERSION = '1.10';
+our $VERSION = '1.12';
 
 # (feature name) => (internal name, used in %^H)
 my %feature = (
     switch => 'feature_switch',
     say    => "feature_say",
-    err    => "feature_err",
     state  => "feature_state",
 );
 
+# NB. the latest bundle must be loaded by the -E switch (see toke.c)
+
 my %feature_bundle = (
-    "5.10.0" => [qw(switch say err state)],
+    "5.10.0" => [qw(switch say state)],
+    "5.11.0" => [qw(switch say state)],
 );
+
 # latest version here
-# keep it harcoded until we actually bump the version number to 5.10
-$feature_bundle{"5.10"} = $feature_bundle{"5.10.0"};
-#$feature_bundle{"5.10"} = $feature_bundle{sprintf("%vd",$^V)};
+$feature_bundle{"5.11"} = $feature_bundle{sprintf("%vd",$^V)};
 
+$feature_bundle{"5.10"} = $feature_bundle{"5.10.0"};
 $feature_bundle{"5.9.5"} = $feature_bundle{"5.10.0"};
 
 # TODO:
@@ -89,14 +91,6 @@ C<say> function.
 
 See L<perlfunc/say> for details.
 
-=head2 the 'err' feature
-
-C<use feature 'err'> tells the compiler to enable the C<err>
-operator.
-
-C<err> is a low-precedence variant of the C<//> operator:
-see C<perlop> for details.
-
 =head2 the 'state' feature
 
 C<use feature 'state'> tells the compiler to enable C<state>
@@ -110,7 +104,7 @@ It's possible to load a whole slew of features in one go, using
 a I<feature bundle>. The name of a feature bundle is prefixed with
 a colon, to distinguish it from an actual feature. At present, the
 only feature bundles are C<use feature ":5.10"> and C<use feature ":5.10.0">,
-which both are equivalent to C<use feature qw(switch say err state)>.
+which both are equivalent to C<use feature qw(switch say state)>.
 
 In the forthcoming 5.10.X perl releases, C<use feature ":5.10"> will be
 equivalent to the latest C<use feature ":5.10.X">.
@@ -130,16 +124,22 @@ all available features in the main compilation unit (that is, the one-liner.)
 
 By requiring explicitly a minimal Perl version number for your program, with
 the C<use VERSION> construct, and when the version is higher than or equal to
-5.9.5. That is,
+5.10.0. That is,
 
-    use 5.9.5;
+    use 5.10.0;
 
 will do an implicit
 
-    use feature ':5.9.5';
+    use feature ':5.10.0';
 
 and so on.
 
+But to avoid portability warnings (see L<perlfunc/use>), you may prefer:
+
+    use 5.010;
+
+with the same effect.
+
 =back
 
 =cut