Bug#1144238: ultrastardx: FTBFS with ffmpeg 9.0

Source: ultrastardx
Version: 2026.6.0+dfsg2-1
Severity: serious
Tags: ftbfs sid forky
Justification: fails to build from source (but built successfully in the past)
X-Debbugs-Cc: [email protected]
Usertags: ffmpeg-9.0

Dear maintainer,

ultrastardx FTBFS with ffmpeg 9.0 (available in experimental):

checking for libavcodec... yes
checking version of libavcodec... [63.1.100]
checking for libavformat... yes
checking version of libavformat... [63.1.100]
checking for libavutil... yes
checking version of libavutil... [61.1.100]
checking for libswscale... yes
checking version of libswscale... [10.1.100]
checking for libswresample... yes
checking version of libswresample... [7.1.100]
checking version of ffmpeg... configure: error: 

Unsupported ffmpeg version, most recent version supported is 8.0, oldest version supported is 4.0.

	tail -v -n \+0 config.log
==> config.log <==
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by ultrastardx configure 2026.6.0, which was
generated by GNU Autoconf 2.73.  Invocation command line was

  $ ./configure --build=aarch64-linux-gnu --prefix=/usr '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' --sysconfdir=/etc --localstatedir=/var --disable-option-checking --disable-silent-rules '--libdir=${prefix}/lib/aarch64-linux-gnu' --runstatedir=/run --disable-maintainer-mode --disable-dependency-tracking --bindir=/usr/games --datarootdir=/usr/share/games --with-opencv-cxx-api --disable-midiemu

See the attached log for more details.

Cheers
-- 
Sebastian Ramacher