Add :ref: targets to recwarn.rst.

Author: decentral1se

AUTHORS

@@ -83,6 +83,7 @@ Kevin Cox
 Lee Kamentsky
 Lev Maximov
 Lukas Bednar
+Luke Murphy
 Maciek Fijalkowski
 Maho
 Marc Schlaich

CHANGELOG.rst

@@ -3,6 +3,9 @@
 
 * Add hint to error message hinting possible missing __init__.py (`#478`_). Thanks `@DuncanBetts`_.
 
+* Provide ``:ref:`` targets for ``recwarn.rst`` so we can use intersphinx referencing.
+  Thanks to `@dupuy`_ for the report and `@lwm`_ for the PR.
+
 * An error message is now displayed if ``--confcutdir`` is not a valid directory, avoiding
   subtle bugs (`#2078`_).
   Thanks `@nicoddemus`_ for the PR.
@@ -19,6 +22,8 @@
 
 *
 
+.. _@dupuy: https://bitbucket.org/dupuy/
+.. _@lwm: https://github.com/lwm
 .. _@adler-j: https://github.com/adler-j
 .. _@DuncanBetts: https://github.com/DuncanBetts
 .. _@nedbat: https://github.com/nedbat

doc/en/recwarn.rst

@@ -1,8 +1,12 @@
+.. _`asserting warnings`:
+
 .. _assertwarnings:
 
 Asserting Warnings
 =====================================================
 
+.. _`asserting warnings with the warns function`:
+
 .. _warns:
 
 Asserting warnings with the warns function
@@ -46,6 +50,8 @@ Alternatively, you can examine raised warnings in detail using the
     ``DeprecationWarning`` and ``PendingDeprecationWarning`` are treated
     differently; see :ref:`ensuring_function_triggers`.
 
+.. _`recording warnings`:
+
 .. _recwarn:
 
 Recording warnings
@@ -96,6 +102,8 @@ class of the warning. The ``message`` is the warning itself; calling
     ``DeprecationWarning`` and ``PendingDeprecationWarning`` are treated
     differently; see :ref:`ensuring_function_triggers`.
 
+.. _`ensuring a function triggers a deprecation warning`:
+
 .. _ensuring_function_triggers:
 
 Ensuring a function triggers a deprecation warning