Bug#1099418: ocaml-mdx fails to build when nice value is not zero

[Jochen Sprickerhof <jspricke@debian.org>]

Source: ocaml-mdx
Version: 2.5.0-2
Severity: normal
Tags: ftbfs

Hi,

ocaml-mdx has a test that expects to be run with nice zero. Otherwise it
fails with:

   dh_auto_test -a -O--buildsystem=ocaml_dune
	dune runtest -j 6 -p mdx
File "test/bin/mdx-test/expect/os_type/test-case.md", line 1, characters 0-0:
(cd _build/default && /usr/bin/diff -u test/bin/mdx-test/expect/os_type/test-case.md test/bin/mdx-test/expect/os_type.actual)
--- test/bin/mdx-test/expect/os_type/test-case.md	2025-02-28 13:07:48.010376024 +0000
+++ test/bin/mdx-test/expect/os_type.actual	2025-02-28 13:07:50.370508337 +0000
@@ -3,7 +3,7 @@
 ```ocaml os_type<>Win32
 # #require "unix"
 # Unix.nice 0
-- : int = 0
+- : int = 10
 ```

(build ran with nice 10)

This currently makes the package not reproducible on
reproduce.debian.net:

https://reproduce.debian.net/amd64/#libmdx-ocaml

I would recommend to either mock the expected value or disable the test.

Cheers Jochen