Compilation failure on ppc64le platform: “note: rerun with option '-Wcounterexamples' to generate conflict counterexamples”

[Super-long]

I am having some problems compiling snacc on ppc64le platform, my environment information is as follows.

1. Linux localhost.localdomain 3.10.0-1160.el7.ppc64le # 1 SMP Wed Sep 30 02:21:30 UTC 2020 ppc64le ppc64le ppc64le GNU/Linux
2. bison (GNU Bison) 3.8.2
3. flex 2.5.37
4. autoconf (GNU Autoconf) 2.71
5. automake (GNU automake) 1.16.5
6. libtool (GNU libtool) 2.4.2
7. GNU Make 4.4

I perform the following actions（The same operation I did on Linux VM-35-18-centos 3.10.107-1-tlinux2_kvm_guest-0056 # 1 SMP Wed Dec 29 14:35:09 CST 2021 x86_64 x86_64 x86_64 GNU/Linux compiled successfully）.

1. . /boot.sh
2. . /configure
3. make

The following result is obtained:

What should I do to get esnacc to compile successfully, or does snacc not currently support the ppc64le architecture?