I've been trying but unable to get this built/installed on a gentoo host

[redog]

I have tried with mit-krb5 1.11 and 1.12
I tried on both x86 and x86_64
I get the same error each time.

linking shared-object rkerberos.so
rkerberos.o: In function rkrb5_get_permitted_enctypes': rkerberos.c:(.text+0x12e): undefined reference tokrb5_enctype_to_string'
collect2: error: ld returned 1 exit status
make: *** [rkerberos.so] Error 1

My /usr/lincludes/krb5/krb5.h includes this line.
krb5_enctype_to_string(krb5_enctype enctype, char *buffer, size_t buflen);

Do I need an older mit-krb5?

In the readme you say,

"The rkerberos library is a repackaging of my custom branch of the krb5_auth library. Eventually the gem djberg96-krb5_auth will be removed from the gem index."

But it's not clear to me if this custom krb5_auth could be contributing to my build woes? Do I need to patch my mit-krb5 install?

[djberg96]

Very peculiar. I don't think it's an issue with the version of Kerberos that you have installed. I wouldn't worry about krb5_auth, you don't need it and it wouldn't interfere with your build anyway.

My googling turned up https://bugzilla.samba.org/show_bug.cgi?id=7561, so I wonder if your krb5 library didn't link properly? Otherwise I'm not sure.