[simpleaudio] problem compiling with ldc2 under linux

[TheZipCreator]

I'm trying to compile arsd.simpleaudio with ldc2/dub on linux and I'm getting the following errors:

Performing "debug" build using /home/z/things/compilers/ldc2/bin/ldc2 for x86_64.
arsd-official:simpleaudio 10.9.8: building configuration "library"...
/home/z/things/compilers/ldc2/bin/../import/core/sys/posix/sys/types.d(685,11): Error: undefined identifier `c_ulong`
/home/z/things/compilers/ldc2/bin/../import/core/sys/posix/sys/types.d(661,40): Error: undefined identifier `__SIZEOF_PTHREAD_MUTEX_T`
/home/z/things/compilers/ldc2/bin/../import/core/sys/posix/sys/types.d(662,16): Error: undefined identifier `c_long`
/home/z/things/compilers/ldc2/bin/../import/core/thread/threadbase.d(85,23): Error: template instance `core.internal.traits.classInstanceAlignment!(Mutex)` error instantiating
/home/z/things/compilers/ldc2/bin/ldc2 failed with exit code 1.

Not sure if this is an ldc2 bug or a simpleaudio bug.

[adamdruppe]

It is a compiler regression bug:

https://issues.dlang.org/show_bug.cgi?id=23595

With a possible fix not merged:

https://github.com/dlang/dmd/pull/14826

You can work around it by changing the order of imports in a all-at-once build. I don't know if dub will let you do that but maybe editing the file to import something else first will trick it.

[TheZipCreator]

ah. I've moved it into my project instead of importing it as a dependency and now I get this error instead, which may actually be a problem with simpleaudio.d:

Performing "debug" build using /home/z/things/compilers/ldc2/bin/ldc2 for x86_64.
bloqq ~master: building configuration "application"...
Linking...
/usr/bin/ld: .dub/build/application-debug-linux.posix-x86_64-ldc_v1.30.0-5E1DB52313F78E46745920055EEB0576/bloqq.o: in function `silence_alsa_messages':
/home/z/code/d/bloqq/source/arsd/simpleaudio.d:3119: undefined reference to `snd_lib_error_set_handler'
collect2: error: ld returned 1 exit status
Error: /usr/bin/cc failed with status: 1
/home/z/things/compilers/ldc2/bin/ldc2 failed with exit code 1.

commenting out the function call snd_lib_error_set_handler(&alsa_message_silencer) appears to fix it and it compiles with no errors (yay!) but there's probably a better solution.

EDIT: ... or it doesn't work. Actually trying to use the library (literally just constructing a single AudioOutputThread causes the following:

Performing "debug" build using /home/z/things/compilers/ldc2/bin/ldc2 for x86_64.
bloqq ~master: building configuration "application"...
Linking...
/usr/bin/ld: .dub/build/application-debug-linux.posix-x86_64-ldc_v1.30.0-5E1DB52313F78E46745920055EEB0576/bloqq.o: in function `_D4arsd11simpleaudio11AudioOutput4playMFZv':
/home/z/code/d/bloqq/source/arsd/simpleaudio.d:2054: undefined reference to `snd_pcm_wait'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2057: undefined reference to `snd_pcm_recover'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2068: undefined reference to `snd_pcm_avail_update'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2088: undefined reference to `snd_pcm_writei'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2091: undefined reference to `snd_pcm_recover'
/usr/bin/ld: .dub/build/application-debug-linux.posix-x86_64-ldc_v1.30.0-5E1DB52313F78E46745920055EEB0576/bloqq.o: in function `_D4arsd11simpleaudio11AudioOutput5closeMFZv':
/home/z/code/d/bloqq/source/arsd/simpleaudio.d:2235: undefined reference to `snd_pcm_close'
/usr/bin/ld: .dub/build/application-debug-linux.posix-x86_64-ldc_v1.30.0-5E1DB52313F78E46745920055EEB0576/bloqq.o: in function `_D4arsd11simpleaudio11openAlsaPcmFEQBhQBf16snd_pcm_stream_tiiAyaZPSQCnQCl9snd_pcm_t':
/home/z/code/d/bloqq/source/arsd/simpleaudio.d:2854: undefined reference to `snd_pcm_open'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2860: undefined reference to `snd_pcm_hw_params_malloc'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2865: undefined reference to `snd_pcm_hw_params_any'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2869: undefined reference to `snd_pcm_hw_params_set_access'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2872: undefined reference to `snd_pcm_hw_params_set_format'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2877: undefined reference to `snd_pcm_hw_params_set_rate_near'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2882: undefined reference to `snd_pcm_hw_params_set_channels'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2887: undefined reference to `snd_pcm_hw_params_set_periods_near'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2893: undefined reference to `snd_pcm_hw_params_set_buffer_size_near'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2898: undefined reference to `snd_pcm_hw_params'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2904: undefined reference to `snd_pcm_sw_params_malloc'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2908: undefined reference to `snd_pcm_sw_params_current'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2910: undefined reference to `snd_pcm_sw_params_set_avail_min'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2912: undefined reference to `snd_pcm_sw_params_set_start_threshold'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2914: undefined reference to `snd_pcm_sw_params'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2919: undefined reference to `snd_pcm_prepare'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2907: undefined reference to `snd_pcm_sw_params_free'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2863: undefined reference to `snd_pcm_hw_params_free'
/usr/bin/ld: /home/z/code/d/bloqq/source/arsd/simpleaudio.d:2857: undefined reference to `snd_pcm_close'
/usr/bin/ld: .dub/build/application-debug-linux.posix-x86_64-ldc_v1.30.0-5E1DB52313F78E46745920055EEB0576/bloqq.o: in function `_D4arsd11simpleaudio13AlsaException6__ctorMFAyaiQemC6object9ThrowableZCQCrQCpQCf':
/home/z/code/d/bloqq/source/arsd/simpleaudio.d:2929: undefined reference to `snd_strerror'
collect2: error: ld returned 1 exit status
Error: /usr/bin/cc failed with status: 1
/home/z/things/compilers/ldc2/bin/ldc2 failed with exit code 1.

is there some setup or shared library or something I'm missing?

[adamdruppe]

Looks like you didn't add the -lasound library (which the file does automatically when built with a good build system, but dub ignores it... so you have to repeat yourself and add "libs":["asound"] to the config file).

[TheZipCreator]

yep that worked. still kind of annoying that I need to put simpleaudio into my actual project instead of just adding it as a dependency, but hey what can you do. at least it works now.

[adamdruppe]

hopefully they'll have the compiler bug fixed soon. i might also be able to work around it in the source with some hack... just pushed something that includes it.

just i have a lot of big changes pending and don't want to tag. i just accidentally committed 200 more lines than i meant to there but fixing it is too much of a hassle

commit history is a lot of work lol

[adamdruppe]

there slightly more broekn up commit b4ada541d364ba5eb6d76e4634c18267527902bd

but arsd master is now containing breaking changes