On 02/24/2013 10:40 PM, Duncan wrote: > Michael Mol posted on Sun, 24 Feb 2013 22:17:56 -0500 as excerpted: > >>> I'm not following you here. 'slot' means a very specific thing. You are >>> not actually suggesting we use SLOT, you simply want both versions of >>> the library to be installed in one ROOT? >>> >>> I would not advocate this approach. You should strive to have only one >>> kerberos implementation on a given machine. >> >> I'm really not certain, to be honest. It was my impression that slots >> allow for two different versions of a thing to be present on the same >> system, and that their different sonames on the system would lead to >> correct symbol resolution. (Although it would require that the soname >> being sought be adjusted in a dependent program to target the version >> required.) > > The issue is in one's definition of "two different versions of a thing". > > "Slot", in the gentoo sense, has the meaning of two different versions of > the same package, say qt-3 (tho that's long out-of-tree, but alive in kde- > sunset) and qt-4 and qt-5 (tho that's very new, but is or will soon be a > problem as more packages dep on it), where there'd ordinarily be file and/ > or functionality collisions, NOT two different packages containing the > same functionality, which is the extended meaning it appears you're > applying here, but which only confuses people when used within the gentoo > context. >
My presumption was that both app-crypt/heimdal and app-crypt/mit-krb5 used the same binary names. $ equery f app-crypt/mit-krb5|grep -e '\.so'|sed -e 's/\.so.*//'|sed -e 's/.*\///'|sort -u|grep -v debug db2 encrypted_challenge libgssapi_krb5 libgssrpc libk5crypto libkadm5clnt libkadm5clnt_mit libkadm5srv libkadm5srv_mit libkdb5 libkrb5 libkrb5support pkinit (on a different machine) $ equery f app-crypt/heimdal|grep -e '\.so'|sed -e 's/\.so.*//'|sed -e 's/.*\///'|sort -u|grep -v debug libasn1 libgssapi libhcrypto libhdb libheimbase libheimntlm libhx509 libkadm5clnt libkadm5srv libkafs libkdc libkrb5 libroken libsl libwind windc The overlap between the two includes libkrb5, libkadm5clnt and libkadm5srv. When I was thinking "why not slots?", that was explicitly the part I was thinking of. The distinction between two versions of a thing, and two implementations of a thing, is a thorny epistemological issue; "extended meaning" is good way to put it. I've acknowledge that abusing slots in this way is pretty vile. I don't really care to advocate it; I merely brought it up as an alternative. (But it seems it's a difficult question to bridge.)
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