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Makefile.flags: suppress clang warnings when cross-compiling

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Extend the changes introduced by commit b4ef2e3467 (Makefile.flags:
suppress some clang-9 warnings) so they also cover the case where
clang is used as a cross-compiler.

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Ron Yorston 2024-01-02 09:01:32 +00:00 committed by Denys Vlasenko
parent ba0f94458b
commit 87c31609f4
1 changed files with 3 additions and 3 deletions
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6
Makefile.flags
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@ -48,7 +48,7 @@ endif
# gcc 3.x emits bogus "old style proto" warning on find.c:alloc_action()
CFLAGS += $(call cc-ifversion, -ge, 0400, -Wold-style-definition)
ifneq ($(CC),clang)
ifneq ($(lastword $(subst -, ,$(CC))),clang)
# "clang-9: warning: optimization flag '-finline-limit=0' is not supported
CFLAGS += $(call cc-option,-finline-limit=0,)
endif
@ -66,7 +66,7 @@ CFLAGS += $(call cc-option,-static-libgcc,)
endif
CFLAGS += $(call cc-option,-falign-functions=1,)
ifneq ($(CC),clang)
ifneq ($(lastword $(subst -, ,$(CC))),clang)
# "clang-9: warning: optimization flag '-falign-jumps=1' is not supported" (and same for other two)
CFLAGS += $(call cc-option,-falign-jumps=1 -falign-labels=1 -falign-loops=1,)
endif
@ -79,7 +79,7 @@ CFLAGS += $(call cc-option,-fno-asynchronous-unwind-tables,)
CFLAGS += $(call cc-option,-fno-builtin-printf,)
# clang-9 does not like "str" + N and "if (CONFIG_ITEM && cond)" constructs
ifeq ($(CC),clang)
ifeq ($(lastword $(subst -, ,$(CC))),clang)
CFLAGS += $(call cc-option,-Wno-string-plus-int -Wno-constant-logical-operand)
endif