[asterisk-bugs] [JIRA] (ASTERISK-27585) [patch] BuildSystem: Resolve resolv.h not via Generic but Particular Header-Check.

[Asterisk Team (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-27585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=241589#comment-241589 ] 

Asterisk Team commented on ASTERISK-27585:
------------------------------------------

The severity of this issue has been automatically downgraded from "Blocker" to "Major". The "Blocker" severity is reserved for issues which have been determined to block the next release of Asterisk. This severity can only be set by privileged users. If this issue is deemed to block the next release it will be updated accordingly during the triage process.

> [patch] BuildSystem: Resolve resolv.h not via Generic but Particular Header-Check.
> ----------------------------------------------------------------------------------
>
>                 Key: ASTERISK-27585
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27585
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/BuildSystem
>    Affects Versions: 15.2.0
>         Environment: OpenBSD 6.2
>            Reporter: Alexander Traud
>
> [Gerrit 5375|http://gerrit.asterisk.org/5375] changed the script ./configure how to look for required headers. In that change, the generic AC_CHECK_HEADERS is used. Currently, ./configure checks each header in that list individually, and tries to compile it via a small app. If a header is incomplete, the test fails. Therefore, the whole ./configure fails. However in that list of headers, {{resolv.h}} needs prerequisites—another header—because it is incomplete.
> Currently OpenBSD (tested latest; 6.2) is affected by this. Tested myself and confirmed by <https://stackoverflow.com/q/35359456>. I reported that issue to OpenBSD.
> For Asterisk, the workaround is to go for [particular header checks|http://www.gnu.org/software/autoconf/manual/autoconf.html#Particular-Headers] which leverage the long-term knowledge of the GNU autoconf team.
> Because Gerrit 5375 has no issue report attached, I have to invite [~coreyfarrell] manually.



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