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-rw-r--r--pod/perlfunc.pod9
1 files changed, 6 insertions, 3 deletions
diff --git a/pod/perlfunc.pod b/pod/perlfunc.pod
index d638cc14f2..da46ec9fa1 100644
--- a/pod/perlfunc.pod
+++ b/pod/perlfunc.pod
@@ -4536,7 +4536,10 @@ called with two parameters, the first being a reference to itself, and the
second the name of the file to be included (e.g. "F<Foo/Bar.pm>"). The
subroutine should return C<undef> or a filehandle, from which the file to
include will be read. If C<undef> is returned, C<require> will look at
-the remaining elements of @INC.
+the remaining elements of @INC. Note that a tied file handle must be a
+real file handle (strictly a typeglob, or reference to a typeglob, blessed or
+unblessed) - tied file handles will be ignored and treated as a return of
+C<undef>.
If the hook is an array reference, its first element must be a subroutine
reference. This subroutine is called as above, but the first parameter is
@@ -4563,8 +4566,8 @@ or:
If the hook is an object, it must provide an INC method that will be
called as above, the first parameter being the object itself. (Note that
-you must fully qualify the sub's name, as it is always forced into package
-C<main>.) Here is a typical code layout:
+you must fully qualify the sub's name, as unqualified C<INC> is always forced
+into package C<main>.) Here is a typical code layout:
# In Foo.pm
package Foo;