Re: [Qemu-devel] Does i386-linux-user build on an i686 host?

[Michael Tokarev]

09.08.2019 15:49, Peter Maydell wrote:
>>>   CC      i386-linux-user/linux-user/syscall.o
>>> /home/armbru/qemu/linux-user/ioctls.h:306:9: error: ‘SNDCTL_DSP_MAPINBUF’ 
>>> undeclared here (not in a function)
>>>    IOCTL(SNDCTL_DSP_MAPINBUF, IOC_R, MK_PTR(MK_STRUCT(STRUCT_buffmem_desc)))
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> Further investigation shows that this is because the system has
> the 'oss4-dev' package installed, which diverts /usr/include/linux/soundcard.h
> and installs its own version which doesn't provide all the symbols
> that the kernel one does.
> 
> Easy fix: uninstall oss4-dev.

On debian we have qemu build-conflict with oss4-dev, exactly for this
very reason, - installing oss4-dev breaks qemu build.

Thanks,

/mjt

> Better fix: patch QEMU to provide its own versions of these constants
> if the system headers don't.
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