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Date:      Sat, 06 Jan 2018 06:44:50 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-ports-bugs@FreeBSD.org
Subject:   [Bug 224947] audio/libsidplay: fails to build with clang 6.0 (blocks 8 ports)
Message-ID:  <bug-224947-13@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D224947

            Bug ID: 224947
           Summary: audio/libsidplay: fails to build with clang 6.0
                    (blocks 8 ports)
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Keywords: needs-patch
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: ehaupt@FreeBSD.org
          Reporter: jbeich@FreeBSD.org
                CC: dim@FreeBSD.org
            Blocks: 224669
                CC: dim@FreeBSD.org
             Flags: maintainer-feedback?(ehaupt@FreeBSD.org),
                    maintainer-feedback?(dim@FreeBSD.org)
          Assignee: ehaupt@FreeBSD.org

FreeBSD -CURRENT plans to update base Clang to 6.0.0 soon. While testing th=
is
port failed to build. The underlying issue appears to be Clang's idiosyncra=
sy
with C++11 attributes. GCC 6+ is unaffected.

$ cat a.cc
extern "C" void exit(int);

#include <stdlib.h>

int main() { return 0; }

$ c++ a.cc
In file included from a.cc:3:
In file included from /usr/include/c++/v1/stdlib.h:94:
/usr/include/stdlib.h:97:1: error: function declared '[[noreturn]]' after i=
ts
first declaration
_Noreturn void   exit(int);
^
/usr/include/sys/cdefs.h:278:22: note: expanded from macro '_Noreturn'
#define _Noreturn               [[noreturn]]
                                  ^
a.cc:1:17: note: declaration missing '[[noreturn]]' attribute is here
extern "C" void exit(int);
                ^
1 error generated.

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<phase=
: configure      >=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D>  Configuring for libsidplay-1.36.59_1
[...]
checking whether exception-handling is supported... no
[...]
checking size of char... configure: error: cannot compute sizeof (char), 77
See `config.log' for more details.
=3D=3D=3D>  Script "configure" failed unexpectedly.

To reproduce:
$ poudriere jail -cj clang6-amd64 -a amd64 -v projects/clang600-import -m
svn+https
$ poudriere bulk -Ctj clang6-amd64 audio/libsidplay

http://package18.nyi.freebsd.org/data/headamd64PR224669-default/2018-01-02_=
08h32m49s/logs/errors/libsidplay-1.36.59_1.log


Referenced Bugs:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D224669
[Bug 224669] [exp-run] Against projects/clang600-import branch
--=20
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