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build: add -Wunused-const-variable=2 to W=2

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TF-A is quite strict with warnings and redundant code. This flag
furthers this so it would be useful to have it. Add it to W=2 as it sets
off a few platforms which require a somewhat involved fix.

Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: Id52b3d477b4ada7dd69a36101ab22c575ab4ef19
This commit is contained in:
Boyan Karatotev 2022-11-21 14:49:05 +00:00
parent d75a9ecdaa
commit d141e63844
1 changed files with 2 additions and 0 deletions
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Makefile
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@ -374,6 +374,8 @@ WARNING2 += -Wmissing-prototypes
WARNING2 += -Wmissing-format-attribute
# TF-A aims to comply with this eventually. Effort too large at present
WARNING2 += -Wundef
# currently very involved and many platforms set this off
WARNING2 += -Wunused-const-variable=2
# Level 3 - very pedantic, frequently ignored
WARNING3 := -Wbad-function-cast