[Bug 257124] multimedia/ffmpeg: inline assembly requires more registers than available

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=257124

            Bug ID: 257124
           Summary: multimedia/ffmpeg: inline assembly requires more
                    registers than available
           Product: Ports & Packages
           Version: Latest
          Hardware: i386
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: multimedia@FreeBSD.org
          Reporter: mi@FreeBSD.org
          Assignee: multimedia@FreeBSD.org
             Flags: maintainer-feedback?(multimedia@FreeBSD.org)

Created attachment 226381
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=226381&action=edit
Configured ffmpeg options

Trying to build the port, configured as per the attached options-file, I get
the following errors. The machine is FreeBSD-12/i386.

The problem strikes with both base cc (clang-10.0.1) and the ports-installed
clang12 (12.0.0).


ld: error: inline assembly requires more registers than available at line
1545398
ld: error: inline assembly requires more registers than available at line
1545398
ld: error: inline assembly requires more registers than available at line
1062512
ld: error: inline assembly requires more registers than available at line
1062512
ld: error: inline assembly requires more registers than available at line
1297481
ld: error: inline assembly requires more registers than available at line
1297481
clang: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[2]: *** [ffbuild/library.mak:103: libpostproc/libpostproc.so.55] Error 1
gmake[2]: *** Waiting for unfinished jobs....
ld: error: inline assembly requires more registers than available at line
2148613353
ld: error: inline assembly requires more registers than available at line
2148613353
ld: error: inline assembly requires more registers than available at line
2148613353
ld: error: inline assembly requires more registers than available at line
2148625407
ld: error: inline assembly requires more registers than available at line
2148625407
ld: error: inline assembly requires more registers than available at line
2148625407
ld: error: inline assembly requires more registers than available at line
1018758
ld: error: inline assembly requires more registers than available at line
1018038
ld: error: inline assembly requires more registers than available at line
1018758
ld: error: inline assembly requires more registers than available at line
1018038
ld: error: inline assembly requires more registers than available at line
1001035
ld: error: inline assembly requires more registers than available at line
1001035
ld: error: inline assembly requires more registers than available at line
2148301486
ld: error: inline assembly requires more registers than available at line
2148301486
ld: error: inline assembly requires more registers than available at line
2148301486
ld: error: inline assembly requires more registers than available at line
2148313628
ld: error: inline assembly requires more registers than available at line
2148313628
ld: error: inline assembly requires more registers than available at line
2148313628
ld: error: inline assembly requires more registers than available at line
700842
ld: error: inline assembly requires more registers than available at line
700122
ld: error: too many errors emitted, stopping now (use -error-limit=0 to see all
errors)
clang: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[2]: *** [ffbuild/library.mak:103: libswscale/libswscale.so.5] Error 1


Is LTO-option to blame?

In addition, the maintainer of this port -- multimedia@FreeBSD.org -- is no
longer approachable: the mailing list software rejects e-mails from
non-members. I don't think, this is suitable for an official port-maintainer
contact.

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