[tests/selinux] pr775-checkpolicy-revdeps: libselinux/matchpathcon: Work around yum issue on CentOS 9

[Vit Mojzis <vmojzis@redhat.com>]

            A new commit has been pushed.

            Repo   : tests/selinux
            Branch : pr775-checkpolicy-revdeps
            Commit : ab42eb93783515a3dce32ce579c4cd401c2b4829
            Author : Vit Mojzis <vmojzis@redhat.com>
            Date   : 2024-08-15T23:36:22+02:00
            Stats  : +4/-0 in 1 file(s)
            URL    : https://src.fedoraproject.org/tests/selinux/c/ab42eb93783515a3dce32ce579c4cd401c2b4829?branch=pr775-checkpolicy-revdeps

            Log:
            libselinux/matchpathcon: Work around yum issue on CentOS 9

Fixes:
  # cd libselinux/setfiles-in-chroot-env
  # 1minutetip 1MT-CentOS-Stream-9
  # ./runtest.sh

  yum -y install filesystem libselinux libselinux-utils python3-libselinux policycoreutils --installroot=/tmp/tmp.WhKcf2BrOe  --skip-broken'
  Unable to detect release version (use '--releasever' to specify release version)
  Error: Failed to download metadata for repo 'epel': Cannot prepare internal mirrorlist: Status code: 404
  [   FAIL   ]

Signed-off-by: Vit Mojzis <vmojzis@redhat.com>

---
diff --git a/libselinux/setfiles-in-chroot-env/runtest.sh b/libselinux/setfiles-in-chroot-env/runtest.sh
index c626652..d18d0a4 100755
--- a/libselinux/setfiles-in-chroot-env/runtest.sh
+++ b/libselinux/setfiles-in-chroot-env/runtest.sh
@@ -40,6 +40,10 @@ fi
 if yum install --help | grep -q skip-unavailable ; then
     INSTALL_OPTION="${INSTALL_OPTION} --skip-unavailable"
 fi
+# yum sometimes fails to detect the release version on CentOS 9
+if rlIsCentOS 9 ; then
+    INSTALL_OPTION="${INSTALL_OPTION} --releasever 9"
+fi
 
 rlJournalStart
     rlPhaseStartSetup