Pranith Kumar <bobby.pr...@gmail.com> writes: > On Sun, Dec 11, 2016 at 5:59 PM, Peter Maydell <peter.mayd...@linaro.org> > wrote: >> >>> Error: >>> /home/pranith/devops/code/qemu/linux-user/ioctls.h:224:9: error: >>> ‘SNDCTL_DSP_MAPINBUF’ undeclared here (not in a function) >>> IOCTL(SNDCTL_DSP_MAPINBUF, IOC_R, MK_PTR(MK_STRUCT(STRUCT_buffmem_desc))) >>> ^ >> >> SNDCTL_DSP_MAPINBUF is supposed to be defined by your system >> headers (/usr/include/linux/soundcard.h or equivalent). >> Similarly for SNDCTL_DSP_MAPOUTBUF and SOUND_MIXER_ACCESS. >> >> Looking at QEMU's git history we've used these symbols >> for years. I would check whether your system headers >> are actually providing these symbols (and that the >> compiler is really putting the right headers on the >> include path). > > So soundcard.h header is provided by two packages: > > $ apt-file search /usr/include/linux/soundcard.h > linux-libc-dev: /usr/include/linux/soundcard.h > oss4-dev: /usr/include/linux/soundcard.h > > I had oss4-dev installed. After removing that and reinstalling > linux-libc-dev, it compiles fine. Not sure why this file differs. May > be a packaging issue.
Sounds like it. How did you ensure you had your QEMU build dependencies installed on your system? -- Alex Bennée
