Hangs when attempting to build

[okapia]

The build.rs program attempts to do find /usr -name libgssapi_krb5.so*. This will take a very long time on many systems because it is a recursive find. It never seems to work on my system and certainly takes a very long time. It probably finds multiple incorrect matches. The source of the problem is that krb5-config --prefix returns /usr. Now at the very least you should append "/lib" and maybe "/lib64" to this before running find but it should sooner take the output of krb5-config --libs gssapi and interpret that. On my system, that is:

-L/usr/lib -lgssapi -lgssapi_krb5 -lheimntlm -lkrb5 -lhx509 -lcom_err -lcrypto -lasn1 -lwind -lheimbase -lroken -lcrypt -pthread

Only the second argument there really seems to be necessary (the first is relevant but a default). Alternatuvely, krb5-config --version does identify my GSS implementation as being heimdal.

I really can't stress enough what a bad idea running a recursive find is. Prefixes can be nested such as /usr/local being below /usr so you'll potentially pick up libraries there. find also tends to search in directory order so the results may not be deterministic. Also as a final pedantic point, omitting the -print option to find is a non-standard (but common) extension. I'm not really using libgssapi directly but it gets picked up as a transitive dependency.

[estokes]

I would gladly accept a PR to improve the situation