[asterisk-bugs] [JIRA] (ASTERISK-27720) [patch] BuildSystem: Enable Advanced Linux Sound Architecture (ALSA) in NetBSD.

[Chris Savinovich (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-27720?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Savinovich updated ASTERISK-27720:
----------------------------------------

    Target Release Version/s: 15.4.0

> [patch] BuildSystem: Enable Advanced Linux Sound Architecture (ALSA) in NetBSD.
> -------------------------------------------------------------------------------
>
>                 Key: ASTERISK-27720
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27720
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_alsa, Core/BuildSystem
>    Affects Versions: 13.19.2, 15.2.2
>         Environment: NetBSD 7.1.1
>            Reporter: Alexander Traud
>            Assignee: Alexander Traud
>            Severity: Minor
>              Labels: patch
>      Target Release: 13.21.0, 15.4.0
>
>         Attachments: NetBSD_enable_alsa.patch
>
>
> A shared library should specify all its dependencies by itself. That way, a user (here: Asterisk) simply adds that library, for example:
> {code}cc hello.c -lasound{code}
> Then, the platform loads the dependent libraries automatically. Therefore, looking for a library without any additional libraries should be the default. Everything else should be the exception. Since Autotools were added to Asterisk, the shared library {{libasound.so}} was always loaded together with -lm and -ldl, always. Why ever. The commit logs do not reveal which platform/version required that. Anyway, {{libdl.so}} is not available on BSD systems like NetBSD.
> Therefore, the attached patch first tries without any additional libraries. To keep compatibility with an unknown platform/version, the script {{./configure}} retries with those libraries as previously.
> Furthermore, the error code ESTRPIPE does not exist on NetBSD.
> Finally, a check for an external library should use a symbol actually used in Asterisk. {{snd_spcm_init(.)}} is not used but {{snd_pcm_open(.)}} is.



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