On 1/27/2020 7:44 PM, Douglas R. Reno via blfs-support wrote:
On 1/27/20 8:35 PM, Alan Feuerbacher via blfs-support wrote:
Building alsa-tools-1.1.7 in BLFS systemd development version:

The BLFS book has a script that builds a number of sub-programs. I got an
error with "make" for one of them, and tracked it down to a conversion
error in the sub-program hdspmixer. You get six errors like:

###############
HDSPMixerWindow.cxx: In function ‘void readregisters_cb(void*)’:
HDSPMixerWindow.cxx:82:36: error: invalid conversion from ‘__u64*’ {aka ‘long long unsigned int*’} to ‘uint64_t*’ {aka ‘long unsigned int*’} [-fpermissive]
   82 |         input_rms = hdspm_peak_rms.input_rms;
      |                     ~~~~~~~~~~~~~~~^~~~~~~~~
      |                                    |
      |                                    __u64* {aka long long unsigned int*}
. . .
###############

I'm guessing that there is a problem here that needs to be fixed by
the alsa-tools people.

I got around the problem by changing the "for tool in *" script so that it does not build the offending program "hdspmixer", but builds all the others.

I don't know if I'll need alsa-tools in the long run, but am building
it now because a number of other programs list it as a dependency.

Does this seem reasonable?

Alan

Hi Alan,

With alsa-lib-1.2.1.2 and alsa-tools-1.1.7, I can't produce this. Can you ensure that you used the sed in the book please? I remember adding one there to fix this problem. It's due to the Kernel API Headers being incompatible with alsa-tools after being synced into the alsa-lib tree (as part of this, they removed the user definitions from the API by accident, and the sed is designed to fix it).

Just to make sure:

sed -i -e "/#include/i #define __user" \ hdspconf/src/*.cxx \ hdspmixer/src/*.cxx \ hdsploader/hdsploader.c

Should be what you're inputting.

Hi Doug,

Yes, I double-checked that sed; it's correct.

I also rebuilt alsa-lib and then alsa-tools. Same error.

And again, when I cd into the hdspmixer directory, and execute "./configure --prefix=/usr; make", I get that same error.

Hopefully a new version of alsa-lib will fix this soon. :)

Yeah. ;-)

Alan

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