include a package POSIX::SigSet

this is mostly for the benefit of the PAUSE indexer, as described
in the code comment

1 files changed, 8 insertions, 0 deletions

diff --git a/ext/POSIX/lib/POSIX.pm b/ext/POSIX/lib/POSIX.pm
index b6997ffca9..ec5c076294 100644
--- a/ext/POSIX/lib/POSIX.pm
+++ b/ext/POSIX/lib/POSIX.pm
@@ -406,6 +406,14 @@ sub mask    { $_[0]->{MASK}    = $_[1] if @_ > 1; $_[0]->{MASK} };
 sub flags   { $_[0]->{FLAGS}   = $_[1] if @_ > 1; $_[0]->{FLAGS} };
 sub safe    { $_[0]->{SAFE}    = $_[1] if @_ > 1; $_[0]->{SAFE} };
 
+{
+package POSIX::SigSet;
+# This package is here entirely to make sure that POSIX::SigSet is seen by the
+# PAUSE indexer, so that it will always be clearly indexed in core.  This is to
+# prevent the accidental case where a third-party distribution can accidentally
+# claim the POSIX::SigSet package, as occurred in 2011-12. -- rjbs, 2011-12-30
+}
+
 package POSIX::SigRt;
 
 require Tie::Hash;