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[08/11] migration-guides/migration-5.2.rst: add information about autotools changes

Message ID 20250317-release-note-5-2-updates-v1-8-82b0a4182aff@bootlin.com
State New
Headers show
Series Updates for upcoming 5.2 release | expand

Commit Message

Antonin Godard March 17, 2025, 9:06 a.m. UTC 
Original patch by Ross Burton:
https://lists.yoctoproject.org/g/docs/message/6466

Moved to the migration manual as it is potentially a breaking change.

Co-developed-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
---
 documentation/migration-guides/migration-5.2.rst | 11 +++++++++++
 1 file changed, 11 insertions(+)
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Patch

diff --git a/documentation/migration-guides/migration-5.2.rst b/documentation/migration-guides/migration-5.2.rst
index 75bc4dbc6..1b8e56551 100644
--- a/documentation/migration-guides/migration-5.2.rst
+++ b/documentation/migration-guides/migration-5.2.rst
@@ -140,6 +140,17 @@  replacing is not as straightforward. For more examples, see the commit
 c++/binutils)" </openembedded-core/commit/?id=4ccc3bc8266c>` in
 :term:`OpenEmbedded-Core (OE-Core)`.
 
+:ref:`ref-classes-autotools` changes
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+-  Changes to how ``aclocal`` is invoked means that ``ACLOCALDIR`` and
+   ``ACLOCALEXTRAPATH`` are no longer used.
+
+-  Directories containing m4 files are no longer found automatically and
+   passed to ``autoreconf``. If a recipe fails to configure because it cannot
+   find m4 macros, then usually the solution is to set ``EXTRA_AUTORECONF += "-I
+   path/to/m4"`` in the recipe.
+
 Recipe changes
 ~~~~~~~~~~~~~~