Warnings while building alsa-gobject

[GitHub issues - opened]

alsa-project/alsa-gobject issue #60 was opened from playaspec:

```
spec at spec-OBSPro:/opt/alsa-gobject-0.2.0/build$ ninja
[1/80] Generating alsactl-sigs-marshal_c with a custom command
INFO: Reading ../src/ctl/alsactl-sigs-marshal.list...
[2/80] Generating alsactl-sigs-marshal_h with a custom command
INFO: Reading ../src/ctl/alsactl-sigs-marshal.list...
[71/80] Generating ALSACtl-0.0.gir with a custom command
g-ir-scanner: link: x86_64-linux-gnu-gcc -pthread -o /opt/alsa-gobject-0.2.0/build/tmp-introspectwlgw8uso/ALSACtl-0.0 /opt/alsa-gobject-0.2.0/build/tmp-introspectwlgw8uso/ALSACtl-0.0.o -L. -Wl,-rpath,. -Wl,--no-as-needed -L/opt/alsa-gobject-0.2.0/build/src/ctl -Wl,-rpath,/opt/alsa-gobject-0.2.0/build/src/ctl -lalsactl -lgobject-2.0 -lglib-2.0 -ludev -lgirepository-1.0 -lgio-2.0 -lgobject-2.0 -Wl,--export-dynamic -lgmodule-2.0 -pthread -lglib-2.0
[73/80] Generating ALSATimer-0.0.gir with a custom command
g-ir-scanner: link: x86_64-linux-gnu-gcc -pthread -o /opt/alsa-gobject-0.2.0/build/tmp-introspecth2cag8su/ALSATimer-0.0 /opt/alsa-gobject-0.2.0/build/tmp-introspecth2cag8su/ALSATimer-0.0.o -L. -Wl,-rpath,. -Wl,--no-as-needed -L/opt/alsa-gobject-0.2.0/build/src/timer -Wl,-rpath,/opt/alsa-gobject-0.2.0/build/src/timer -lalsatimer -lgobject-2.0 -lglib-2.0 -ludev -lgirepository-1.0 -lgio-2.0 -lgobject-2.0 -Wl,--export-dynamic -lgmodule-2.0 -pthread -lglib-2.0
[75/80] Generating ALSARawmidi-0.0.gir with a custom command
g-ir-scanner: link: x86_64-linux-gnu-gcc -pthread -o /opt/alsa-gobject-0.2.0/build/tmp-introspectirtcfspf/ALSARawmidi-0.0 /opt/alsa-gobject-0.2.0/build/tmp-introspectirtcfspf/ALSARawmidi-0.0.o -L. -Wl,-rpath,. -Wl,--no-as-needed -L/opt/alsa-gobject-0.2.0/build/src/rawmidi -Wl,-rpath,/opt/alsa-gobject-0.2.0/build/src/rawmidi -lalsarawmidi -lgobject-2.0 -lglib-2.0 -ludev -lgirepository-1.0 -lgio-2.0 -lgobject-2.0 -Wl,--export-dynamic -lgmodule-2.0 -pthread -lglib-2.0
[76/80] Generating ALSAHwdep-0.0.gir with a custom command
g-ir-scanner: link: x86_64-linux-gnu-gcc -pthread -o /opt/alsa-gobject-0.2.0/build/tmp-introspectbm236ozt/ALSAHwdep-0.0 /opt/alsa-gobject-0.2.0/build/tmp-introspectbm236ozt/ALSAHwdep-0.0.o -L. -Wl,-rpath,. -Wl,--no-as-needed -L/opt/alsa-gobject-0.2.0/build/src/hwdep -Wl,-rpath,/opt/alsa-gobject-0.2.0/build/src/hwdep -lalsahwdep -lgobject-2.0 -lglib-2.0 -ludev -lgirepository-1.0 -lgio-2.0 -lgobject-2.0 -Wl,--export-dynamic -lgmodule-2.0 -pthread -lglib-2.0
../src/hwdep/alsahwdep-enum-types.h:10: Warning: ALSAHwdep: symbol='SNDRV_HWDEP_IFACE_LINE6': Unknown namespace for symbol 'SNDRV_HWDEP_IFACE_LINE6'
../src/hwdep/alsahwdep-enum-types.h:16: Warning: ALSAHwdep: symbol='SNDRV_HWDEP_IFACE_FW_MOTU': Unknown namespace for symbol 'SNDRV_HWDEP_IFACE_FW_MOTU'
../src/hwdep/alsahwdep-enum-types.h:17: Warning: ALSAHwdep: symbol='SNDRV_HWDEP_IFACE_FW_FIREFACE': Unknown namespace for symbol 'SNDRV_HWDEP_IFACE_FW_FIREFACE'
[79/80] Generating ALSASeq-0.0.gir with a custom command
g-ir-scanner: link: x86_64-linux-gnu-gcc -pthread -o /opt/alsa-gobject-0.2.0/build/tmp-introspectn1rw21o7/ALSASeq-0.0 /opt/alsa-gobject-0.2.0/build/tmp-introspectn1rw21o7/ALSASeq-0.0.o -L. -Wl,-rpath,. -Wl,--no-as-needed -L/opt/alsa-gobject-0.2.0/build/src/timer -Wl,-rpath,/opt/alsa-gobject-0.2.0/build/src/timer -L/opt/alsa-gobject-0.2.0/build/src/seq -Wl,-rpath,/opt/alsa-gobject-0.2.0/build/src/seq -L/opt/alsa-gobject-0.2.0/build/src/timer -Wl,-rpath,/opt/alsa-gobject-0.2.0/build/src/timer -lalsaseq -lalsatimer -lgobject-2.0 -lglib-2.0 -ludev -lgirepository-1.0 -lgio-2.0 -lgobject-2.0 -Wl,--export-dynamic -lgmodule-2.0 -pthread -lglib-2.0
[80/80] Generating ALSASeq-0.0.typelib with a custom command

```

Tried both git version and the 0.2.0 tar file. System is Ubuntu Studio 20.04.02 Kernel 5.8.0-59-lowlatency. ALSA: alsa-base 1.0.25+dfsg-0ubuntu5, Pulseaudio 1:13.99.1-1ubuntu3.11, pipewire 0.3.31-3~ubuntu20.04, jack2 1.9.14-0ubuntu2

Running on a Mac Pro 4,1, using a MOTU 828mkII.

Perhaps these warnings are inconsequential, but I figured I'd report them since it may affect my hardware. Happy to provide more info and testing.

Issue URL     : https://github.com/alsa-project/alsa-gobject/issues/60
Repository URL: https://github.com/alsa-project/alsa-gobject