[jira] [Commented] (GUACAMOLE-1892) Build fails with "undefined reference to 'timer_create'"

["Jimmy (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/GUACAMOLE-1892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17805064#comment-17805064 ] 

Jimmy commented on GUACAMOLE-1892:
----------------------------------

[~mjumper] I've just created a PR for this issue: [https://github.com/apache/guacamole-server/pull/476]

Please check it. Thanks.

> Build fails with "undefined reference to 'timer_create'"
> --------------------------------------------------------
>
>                 Key: GUACAMOLE-1892
>                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-1892
>             Project: Guacamole
>          Issue Type: Bug
>          Components: guacamole-server
>    Affects Versions: 1.5.4
>            Reporter: Mike Jumper
>            Priority: Minor
>
> When attempting to build guacamole-server on Ubuntu 20.04.6, the build fails with the following errors:
> {code:none}
> /usr/bin/ld: .../src/libguac/.libs/libguac.so: undefined reference to `timer_delete'
> /usr/bin/ld: .../src/libguac/.libs/libguac.so: undefined reference to `timer_settime'
> /usr/bin/ld: .../src/libguac/.libs/libguac.so: undefined reference to `timer_create'
> {code}
> This is because the {{timer_create()}}, {{timer_settime()}}, and {{timer_delete()}} functions are defined in a separate library on Ubuntu 20.04 ({{librt}}). A configure test likely needs to be added to recognize whether {{librt}} needs to be linked in.
> *NOTE:* Users encountering this error can work around the problem by performing the build with the {{LDFLAGS}} environment variable set to {{"-lrt"}}. For example, when running {{configure}} for a fresh build:
> {code:none}
> LDFLAGS="-lrt" ./configure
> {code}
> Running {{make}}, etc. should then succeed as normal.



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