Hello,
I would like to use AudioMixer with Alsa (sound default system within
Debian RPI OS Lite)
I got the latest source from Savannah:
svn co svn://svn.savannah.nongnu.org/gap/trunk/system-apps/AudioMixer
And I note this issue about a 'forward class' while building with the
latest GNUstep API:
patrick@pi400gnustep:~/SOURCES/AudioMixer $ make
This is gnustep-make 2.9.3. Type 'gmake print-gnustep-make-help' for
help.
Running in gnustep-make version 2 strict mode.
Making all for app AudioMixer...
Creating AudioMixer.app/....
Compiling file AppController.m ...
AppController.m:73:16: warning: receiver 'SoundDevice' is a forward
class and co
rresponding @interface may not exist [-Wreceiver-forward-class]
73 | soundDev = [[SoundDevice alloc] init];
| ^~~~~~~~~~~
./AppController.h:32:8: note: forward declaration of class here
32 | @class SoundDevice;
| ^
/usr/local/include/Foundation/NSObject.h:329:1: note: method 'alloc'
is used for
the forward class
329 | + (id) alloc;
| ^
AppController.m:75:21: warning: instance method '-outMainLevel' not
found (retur
n type defaults to 'id') [-Wobjc-method-access]
75 | level = [soundDev outMainLevel];
| ^~~~~~~~~~~~
./AppController.h:32:8: note: receiver is instance of class declared
here
32 | @class SoundDevice;
| ^
AppController.m:75:9: error: incompatible pointer to integer
conversion assignin
g to 'int' from 'id' [-Wint-conversion]
75 | level = [soundDev outMainLevel];
| ^ ~~~~~~~~~~~~~~~~~~~~~~~
AppController.m:76:23: warning: instance method '-outMainBalance' not
found (ret
urn type defaults to 'id') [-Wobjc-method-access]
76 | balance = [soundDev outMainBalance];
| ^~~~~~~~~~~~~~
./AppController.h:32:8: note: receiver is instance of class declared
here
32 | @class SoundDevice;
| ^
AppController.m:76:11: error: incompatible pointer to integer
conversion assigni
ng to 'int' from 'id' [-Wint-conversion]
76 | balance = [soundDev outMainBalance];
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~
AppController.m:109:13: warning: instance method
'-setMainLevel:withBalance:' no
t found (return type defaults to 'id') [-Wobjc-method-access]
109 | [soundDev setMainLevel: level withBalance: balance];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./AppController.h:32:8: note: receiver is instance of class declared
here
32 | @class SoundDevice;
| ^
AppController.m:120:13: warning: instance method
'-setMainLevel:withBalance:' no
t found (return type defaults to 'id') [-Wobjc-method-access]
120 | [soundDev setMainLevel: level withBalance: balance];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./AppController.h:32:8: note: receiver is instance of class declared
here
32 | @class SoundDevice;
| ^
5 warnings and 2 errors generated.
gmake[3]: *** [/usr/local/share/GNUstep/Makefiles/rules.make:534 :
obj/AudioMixe
r.obj/AppController.m.o] Erreur 1
gmake[2]: ***
[/usr/local/share/GNUstep/Makefiles/Instance/application.make:145
: internal-app-run-compile-submake] Erreur 2
gmake[1]: ***
[/usr/local/share/GNUstep/Makefiles/Master/rules.make:297 : AudioM
ixer.all.app.variables] Erreur 2
make: ***
[/usr/local/share/GNUstep/Makefiles/Master/application.make:38 : inter
nal-all] Erreur 2
Regards,
--
Patrick Cardona - Pi400 - GNU/Linux (Debian 12 aarch64: RPI OS Lite)
Xorg (1:1.7.1-1.2) - libcairo2 (1.16.0-7+rpt1 arm64)
Window Maker (0.96.0) - GWorkspace (1.1.0 - 02 2025) - Theme: Heritage
- MUA: GNUMail (1.4.0)
