Testsuite failing on 64-bit PowerPC (big-endian)

[glaubitz]

The testsuite for sedlex fails on 64-bit PowerPC (big-endian) as following:

dune runtest -j 16 -p sedlex
(cd _build/default/examples && ./subtraction.exe)
a
	Whitespace
abc
	Whitespace
abc
	Whitespace
d
	Whitespace
Other
	End
(cd _build/default/examples && ./complement.exe)
ULL??ULLU.
(cd _build/default/examples && ./repeat.exe)
a
	Whitespace
bcbc
	Whitespace
d
	Whitespace
ef
	Whitespace
efef
	Whitespace
efefef
	End
(cd _build/default/examples && ./tokenizer.exe)
Ident foobar
Ident A123Bfoo
Op ++
Number 123
Ident Xbar
Op /
Ident foo
EOF
(cd _build/default/examples && ./performance.exe)
Execution time: 0.670450s
File "examples/dune", line 15, characters 0-77:
15 | (rule
16 |  (alias runtest)
17 |  (deps
18 |   (:< regressions.exe))
19 |  (action
20 |   (run %{<})))
(cd _build/default/examples && ./regressions.exe)
Testing Unicode regression: 14.0.0 => 15.0.0

Full build log available in: https://buildd.debian.org/status/fetch.php?pkg=ocaml-sedlex&arch=ppc64&ver=3.2-1&stamp=1717239639&raw=0

A porterbox running Debian ppc64 (big-endian) can be accessed through the GCC Compile Farm: https://gcc.gnu.org/wiki/CompileFarm