Bug#1107403: gmtsar:FTBFS:build failed(gcc: error: unrecognized command-line option =?UTF-8?Q?=E2=80=98-m64=E2=80=99?=)

[Sebastiaan Couwenberg]

Control: severity -1 important

Lowering the severity as gmtsar never built successfully on riscv64 since its introduction in the archive.

No need to trigger testing autoremoval for this issue, nor prepare a targeted fix for trixie.

Kind Regards,

Bas

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