Bug#850299: libgnupg-perl: FTBFS randomly (not enough entropy)

[Santiago Vila]

Hi.

I can confirm that lack of entropy is indeed the problem.

Since I'm using sbuild, I added this line to /etc/schroot/default/fstab:

/dev/urandom    /dev/random     none    rw,bind         0       0

then tried to build this package 100 times, and I got 100 successful
builds (and a lot faster than ever).

I wonder if we can really assume that an autobuilder will always have
enough "entropy", like we do for memory.

Apparently we implicitly assume such thing, but I still think we should not.
For example: Does this package really need to generate a key at build
time? It may not be pregenerated and used during the build, like other
packages do? (mini-buildd comes to mind).

Thanks.