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Makefile: clarify comment on .br-external handling

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The comment language may lead the reader to think that .br-external is removed
whenever BR2_EXTERNAL is not set in the command line. Make it clear that
BR2_EXTERNAL must be explicitly set to an empty value for .br-external to get
removed.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Baruch Siach 2014-12-25 07:36:28 +02:00 committed by Thomas Petazzoni
parent 8995e5b57d
commit f6e7710323
1 changed files with 3 additions and 2 deletions
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Makefile
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@ -123,8 +123,9 @@ $(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
# On subsequent invocations of make, it is read in. It can still be overridden
# on the command line, therefore the file is re-created every time make is run.
#
# When BR2_EXTERNAL is not set, the .br-external file is removed and we point
# to support/dummy-external. This makes sure we can unconditionally include the
# When BR2_EXTERNAL is set to an empty value (e.g. explicitly in command
# line), the .br-external file is removed and we point to
# support/dummy-external. This makes sure we can unconditionally include the
# Config.in and external.mk from the BR2_EXTERNAL directory. In this case,
# override is necessary so the user can clear BR2_EXTERNAL from the command
# line, but the dummy path is still used internally.