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cc1plus: warning: ‘-Werror=’ argument ‘-Werror=implicit-function-declaration’ is not valid for C++ #712

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sebastinas opened this issue Aug 18, 2019 · 4 comments · Fixed by #714
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cc1plus: warning: ‘-Werror=’ argument ‘-Werror=implicit-function-declaration’ is not valid for C++ #712

sebastinas opened this issue Aug 18, 2019 · 4 comments · Fixed by #714

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@sebastinas
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Since GCC 9, the compiler emits the following warning:

cc1plus: warning: ‘-Werror=’ argument ‘-Werror=implicit-function-declaration’ is not valid for C++

The flags only makes sense for C code. Please remove it for the C++ bits and pieces.
@XinfengZhang
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@yanqings @hanlong1 , could you help on it?

@rossburton
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Specifically, GCC 9.2 changed behaviour here.

@LocutusOfBorg
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LocutusOfBorg commented Aug 21, 2019 •
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"patch" here:
http://launchpadlibrarian.net/437767084/intel-media-driver-non-free_19.2.1+ds1-1ubuntu1_19.2.1+ds1-1ubuntu2.diff.gz

@XinfengZhang
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thanks @LocutusOfBorg , will refer the patch

@shawnli2 shawnli2 mentioned this issue Aug 22, 2019
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Drop one compile flag for gcc9 shawnli2/media-driver
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@rossburton @sebastinas @LocutusOfBorg @XinfengZhang