https://github.com/martinpitt/umockdev/commit/9e68706bfbc4185c7b65550fdc94dd14a6e5ffd6

From 9e68706bfbc4185c7b65550fdc94dd14a6e5ffd6 Mon Sep 17 00:00:00 2001
From: Martin Pitt <martin@piware.de>
Date: Sun, 5 Jan 2025 14:58:52 +0100
Subject: [PATCH] tests: Fix ioctl data type

The `0xdeadbeef` constant in Vala is implicitly an int64. On 32 bit
big-endian architectures like powerpc this argument vanishes during its
interpretation through varargs and long (i.e. gets shifted to the second
argument, which we never look at). Explicitly make it an int.
--- a/tests/test-umockdev-vala.vala
+++ b/tests/test-umockdev-vala.vala
@@ -1140,10 +1140,11 @@ E: SUBSYSTEM=test
   int fd = Posix.open ("/dev/test", Posix.O_RDWR, 0);
   assert_cmpint (fd, CompareOperator.GE, 0);
 
-  assert_cmpint (Posix.ioctl (fd, 1, 0xdeadbeef), CompareOperator.EQ, (int) 0xdeadbeef);
+  int value = (int) 0xdeadbeef;
+  assert_cmpint (Posix.ioctl (fd, 1, value), CompareOperator.EQ, value);
   assert_cmpint (Posix.errno, CompareOperator.EQ, 0);
 
-  assert_cmpint (Posix.ioctl (fd, 2, 0xdeadbeef), CompareOperator.EQ, -1);
+  assert_cmpint (Posix.ioctl (fd, 2, value), CompareOperator.EQ, -1);
   assert_cmpint (Posix.errno, CompareOperator.EQ, Posix.ENOMEM);
 
   assert_cmpint (Posix.ioctl (fd, 3, &ioctl_target), CompareOperator.EQ, 0);