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pkg-infra: introduce errors for legacy API

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As discussed in the BR developer days, we want to be more strict about API
changes in buildroot. I.e., we want to make it less likely that a user's
customizations break down after upgrading buildroot.

A first step is to make sure that the user is warned about API changes.
This patch introduces Makefile.legacy and Config.in.legacy, which will
issue clear error messages for such situations.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Arnout Vandecappelle (Essensium/Mind)
2012-11-12 10:08:28 +00:00
committed by Peter Korsgaard
parent cc6da8b28e
commit ebcfa987df
4 changed files with 72 additions and 1 deletions
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13
Makefile.legacy Normal file
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#
# Makefile.legacy - support for backward compatibility
#
# This file contains placeholders to detect backward-compatibility problems.
# When a buildroot "API" feature is being deprecated, a rule should be added
# here that issues an error when the old feature is used.
#
# This file is not included if BR2_DEPRECATED is selected, so it is possible
# to bypass the errors (although that's usually a bad idea).
ifeq ($(BR2_LEGACY),y)
$(error "You have legacy configuration in your .config! Please check your configuration.")
endif