[Git][ghc/ghc][master] Add a release-notes entry for -Wincomplete-record-selectors

[Marge Bot (@marge-bot)]

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC


Commits:
ab1767d5 by Simon Peyton Jones at 2024-10-15T23:45:04-04:00
Add a release-notes entry for -Wincomplete-record-selectors

- - - - -


1 changed file:

- docs/users_guide/9.14.1-notes.rst


Changes:

=====================================
docs/users_guide/9.14.1-notes.rst
=====================================
@@ -11,6 +11,15 @@ for specific guidance on migrating programs to this release.
 Language
 ~~~~~~~~
 
+* ``-Wincomplete-record-selectors`` is now part of `-Wall`, as specified
+  by `GHC Proposal 516: add warning for incomplete record selectors <https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0516-incomplete-record-selectors.rst>_`.
+  Hence, if a library is compiled with ``-Werror``, compilation may now fail. Solution: fix the library.
+  Workaround: add ``-Werror=no-incomplete-record-selectors``.
+
+  Note that this warning is at least
+  as serious as a warning about missing patterns from a function definition, perhaps even
+  more so, since it is invisible in the source program.
+
 Compiler
 ~~~~~~~~
 



View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/ab1767d5c2018e7eb26200c614d9c5bee723ef1c

-- 
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/ab1767d5c2018e7eb26200c614d9c5bee723ef1c
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