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mk: fix warnings when adding extra warning flags

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Starting with commit 9aa2053c6e
EXTRA_CFLAGS is sometimes being passed to the compiler without
WERROR_FLAGS which can cause spurious warnings by the dozen,
for example with when compiling with EXTRA_CFLAGS="-Wformat-security":

cc1: warning: -Wformat-security ignored without -Wformat [-Wformat-security]

Passing WERROR_FLAGS to AUTO_CPU helper makes the warning flag usage
consistent throughout the codebase, silencing the warnings.

Fixes: 9aa2053c6e ("mk: influence CPU flags with user input")

Signed-off-by: Panu Matilainen <pmatilai@redhat.com>
Acked-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
This commit is contained in:
Panu Matilainen 2015-12-07 14:56:43 +02:00 committed by Thomas Monjalon
parent 3e718b8169
commit 51202a208b
1 changed files with 1 additions and 1 deletions
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mk/rte.cpuflags.mk
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@ -33,7 +33,7 @@
# used to set the RTE_CPUFLAG_* environment variables giving details
# of what instruction sets the target cpu supports.
AUTO_CPUFLAGS := $(shell $(CC) $(MACHINE_CFLAGS) $(EXTRA_CFLAGS) -dM -E - < /dev/null)
AUTO_CPUFLAGS := $(shell $(CC) $(MACHINE_CFLAGS) $(WERROR_FLAGS) $(EXTRA_CFLAGS) -dM -E - < /dev/null)
# adding flags to CPUFLAGS