Issue when compiling Chromium on an M2 macbook air

[Rudi]

So i was trying to compile Chromium on MacOS Sonoma with an M2 chip using autoninja and on [50994/61229] CXX obj/third_party/blink/renderer/bindings/core/v8/v8/v8_async_iterator_readable_stream.o it suddenly failed. The error log is extremely long but they are all about unsafe buffer access.

/Users/me/chromium/src/out/Default/../../base/containers/span.h:901:27: error: unsafe buffer access [-Werror,-Wunsafe-buffer-usage] 901 | return UNSAFE_BUFFERS(data()[idx]);

I never actually modified the code so it's pretty weird.

I tried around 5 more times playing around with my args.gn file but nothing worked. This is my args.gn file right now by the way:

target_cpu = "arm64"
is_debug = false
is_component_build = true
symbol_level = 0

Please help

[danakj]

Hi,

This sounds like https://issues.chromium.org/u/1/issues/335663493#comment2

For some reason the source file paths are absolute on some mac machines (but not in most of our builders).

I will follow up there or in https://issues.chromium.org/u/1/issues/41497066

For now you can try this workaround: https://issues.chromium.org/u/1/issues/41497066#comment28

Cheers,

Dana

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