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a34c378a05
Clang 19 has become more strict about C23 extensions, which results in
errors building devel/bazel5:
external/upb/upb/upb.c:215:25: error: defining a type within '__builtin_offsetof' is a C23 extension [-Werror,-Wc23-extensions]
215 | n = UPB_ALIGN_DOWN(n, UPB_ALIGN_OF(upb_arena));
| ^~~~~~~~~~~~~~~~~~~~~~~
external/upb/upb/port_def.inc:94:38: note: expanded from macro 'UPB_ALIGN_OF'
94 | #define UPB_ALIGN_OF(type) offsetof (struct { char c; type member; }, member)
| ^~~~~~
/usr/include/stddef.h:64:42: note: expanded from macro 'offsetof'
64 | #define offsetof(type, field) __offsetof(type, field)
| ^~~~
/usr/include/sys/cdefs.h:324:53: note: expanded from macro '__offsetof'
324 | #define __offsetof(type, field) __builtin_offsetof(type, field)
| ^~~~
external/upb/upb/port_def.inc:92:48: note: expanded from macro 'UPB_ALIGN_DOWN'
92 | #define UPB_ALIGN_DOWN(size, align) ((size) / (align) * (align))
| ^~~~~
To work around this, amend extra-patch-upb_bazel_build__defs.bzl to also
add -Wno-c23-extensions. Alternatively, the -Werror option could be
taken out.
PR: 282166
Approved by: vishwin (maintainer)
MFH: 2024Q4
19 lines
747 B
Python
19 lines
747 B
Python
--- bazel/build_defs.bzl.orig 2023-08-27 11:49:04.950868000 +0100
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+++ bazel/build_defs.bzl 2023-08-27 11:51:17.441304000 +0100
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@@ -35,6 +35,7 @@
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# "-Wshorten-64-to-32", # not in GCC (and my Kokoro images doesn't have Clang)
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"-Werror",
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"-Wno-long-long",
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+ "-Wno-deprecated-copy",
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# copybara:strip_end
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],
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})
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@@ -49,6 +50,8 @@
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"-Werror=pedantic",
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"-Wall",
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"-Wstrict-prototypes",
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+ "-Wno-gnu-offsetof-extensions",
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+ "-Wno-c23-extensions",
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# GCC (at least) emits spurious warnings for this that cannot be fixed
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# without introducing redundant initialization (with runtime cost):
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80635
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