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Merge branch 'jh/struct-zero-init-with-older-clang' into maint-2.38

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Work around older clang that warns against C99 zero initialization
syntax for struct.

* jh/struct-zero-init-with-older-clang:
  config.mak.dev: disable suggest braces error on old clang versions
This commit is contained in:
Junio C Hamano 2022-10-27 15:24:13 -07:00
parent 92cd390849 54795d37d9
commit 4532cd8377
1 changed files with 25 additions and 0 deletions
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25
config.mak.dev
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@ -69,6 +69,31 @@ DEVELOPER_CFLAGS += -Wno-missing-braces
endif
endif
# Old versions of clang complain about initializaing a
# struct-within-a-struct using just "{0}" rather than "{{0}}". This
# error is considered a false-positive and not worth fixing, because
# new clang versions do not, so just disable it.
#
# The "bug" was fixed in upstream clang 9.
#
# Complicating this is that versions of clang released by Apple have
# their own version numbers (associated with the corresponding version
# of XCode) unrelated to the official clang version numbers.
#
# The bug was fixed in Apple clang 12.
#
ifneq ($(filter clang1,$(COMPILER_FEATURES)),) # if we are using clang
ifeq ($(uname_S),Darwin) # if we are on darwin
ifeq ($(filter clang12,$(COMPILER_FEATURES)),) # if version < 12
DEVELOPER_CFLAGS += -Wno-missing-braces
endif
else # not darwin
ifeq ($(filter clang9,$(COMPILER_FEATURES)),) # if version < 9
DEVELOPER_CFLAGS += -Wno-missing-braces
endif
endif
endif
# https://bugzilla.redhat.com/show_bug.cgi?id=2075786
ifneq ($(filter gcc12,$(COMPILER_FEATURES)),)
DEVELOPER_CFLAGS += -Wno-error=stringop-overread