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Date:      Fri, 10 Nov 2023 17:58:54 +0000
From:      bugzilla-noreply@freebsd.org
To:        emulation@FreeBSD.org
Subject:   =?UTF-8?B?W0J1ZyAyNzUwMTRdIGF1ZGlvL2xpbnV4LWM3LWFsc2EtcGx1Z2lu?= =?UTF-8?B?cy1vc3M6IGZhaWxzIHRvIGJ1aWxkIHdpdGggLWVuYWJsZS10cml2aWFsLWF1?= =?UTF-8?B?dG8tdmFyLWluaXQtemVyby1rbm93aW5nLWl0LXdpbGwtYmUtcmVtb3ZlZC1m?= =?UTF-8?B?cm9tLWNsYW5n?=
Message-ID:  <bug-275014-4077@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D275014

            Bug ID: 275014
           Summary: audio/linux-c7-alsa-plugins-oss: fails to build with
                    -enable-trivial-auto-var-init-zero-knowing-it-will-be-
                    removed-from-clang
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: emulation@FreeBSD.org
          Reporter: sean@rogue-research.com
          Assignee: emulation@FreeBSD.org
             Flags: maintainer-feedback?(emulation@FreeBSD.org)

I build my own packages with poudriere.

I recently globally added the clang
`-enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang` =
flag
and that broke `audio/linux-c7-alsa-plugins-oss` from building.  The other =
419
packages I build had no problem.

The error is:

```
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... Segmentation fault (core dumped)
configure: error: in
`/wrkdirs/usr/ports/audio/linux-c7-alsa-plugins-oss/work/32/alsa-plugins-1.=
1.6':
configure: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details
*** Error code 77

Stop.
make: stopped in /usr/ports/audio/linux-c7-alsa-plugins-oss
```

The `-enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-cla=
ng`
flag has a dubious name I agree, but that's only because FreeBSD 13.2's cla=
ng
14 is rather old.  In newer clang the flag was promoted from experimental to
fully legit and is now named `-ftrivial-auto-var-init=3Dzero`.  See
https://discourse.llvm.org/t/making-ftrivial-auto-var-init-zero-a-first-cla=
ss-option/55143

My reason for using the flag is the same as others: security.  Android, Chr=
ome
OS, Windows, Apple, and others use this in production builds too.

>From the error output, I would guess that something is building and running=
 a C
program to test something, and that program is crashing.

--=20
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