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Makefile: wire up build option for deprecated features

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With 57ec9254eb (docs: introduce document to announce breaking changes,
2024-06-14), we have introduced a new document that tracks upcoming
breaking changes in the Git project. In 2454970930 (BreakingChanges:
early adopter option, 2024-10-11) we have amended the document a bit to
mention that any introduced breaking changes must be accompanied by
logic that allows us to enable the breaking change at compile-time.
While we already have two breaking changes lined up, neither of them has
such a switch because they predate those instructions.

Introduce the proposed `WITH_BREAKING_CHANGES` preprocessor macro and
wire it up with both our Makefiles and Meson. This does not yet wire up
the build flag for existing deprecations.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt
2025-01-22 12:31:29 +01:00
committed by Junio C Hamano
parent 2187ce76c5
commit c5bc9a7f94
6 changed files with 19 additions and 0 deletions
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meson_options.txt
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@@ -43,6 +43,8 @@ option('sha256_backend', type: 'combo', choices: ['openssl', 'nettle', 'gcrypt',
description: 'The backend used for hashing objects with the SHA256 object format')
# Build tweaks.
option('breaking_changes', type: 'boolean', value: false,
description: 'Enable upcoming breaking changes.')
option('macos_use_homebrew_gettext', type: 'boolean', value: true,
description: 'Use gettext from Homebrew instead of the slightly-broken system-provided one.')