With operator '=', when in /etc/os-release:
ID_LIKE="opensuse suse" # Tumbleweed since at least 2018-04-24
or
ID_LIKE="suse opensuse" # Leap 15
PATH=/sbin:/bin:/usr/sbin:/usr/bin
export PATH
-LOOKS_LIKE_DEBIAN=$(source /etc/os-release && [[ "$ID" = "debian" || "$ID_LIKE" = "debian" ]] && echo yes || true)
-LOOKS_LIKE_ARCH=$(source /etc/os-release && [[ "$ID" = "arch" ]] && echo yes || true)
-LOOKS_LIKE_SUSE=$(source /etc/os-release && [[ "$ID_LIKE" = "suse" ]] && echo yes || true)
+LOOKS_LIKE_DEBIAN=$(source /etc/os-release && [[ "$ID" = "debian" || " $ID_LIKE " = *" debian "* ]] && echo yes || true)
+LOOKS_LIKE_ARCH=$(source /etc/os-release && [[ "$ID" = "arch" || " $ID_LIKE " = *" arch "* ]] && echo yes || true)
+LOOKS_LIKE_SUSE=$(source /etc/os-release && [[ " $ID_LIKE " = *" suse "* ]] && echo yes || true)
KERNEL_VER=${KERNEL_VER-$(uname -r)}
KERNEL_MODS="/lib/modules/$KERNEL_VER/"
QEMU_TIMEOUT="${QEMU_TIMEOUT:-infinity}"