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

[Santiago Vila]

Package: src:libgnupg-perl
Version: 0.19-2
Severity: important

Dear maintainer:

I tried to build this package in stretch with "dpkg-buildpackage -A"
(which is what the "Arch: all" autobuilder would do to build it)
but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-indep
dh build-indep
   dh_testdir -i
   dh_update_autotools_config -i
   dh_auto_configure -i
	perl -I. Makefile.PL INSTALLDIRS=vendor "OPTIMIZE=-g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2" "LD=x86_64-linux-gnu-gcc -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wl,-z,relro"
Checking if your kit is complete...
Looks good
Generating a Unix-style Makefile
Writing Makefile for GnuPG
Writing MYMETA.yml and MYMETA.json
   dh_auto_build -i
	make -j1
make[1]: Entering directory '/<<PKGBUILDDIR>>'
cp GnuPG/Tie.pm blib/lib/GnuPG/Tie.pm
cp GnuPG.pm blib/lib/GnuPG.pm
cp GnuPG/Tie/ClearSign.pm blib/lib/GnuPG/Tie/ClearSign.pm
cp GnuPG/Tie/Sign.pm blib/lib/GnuPG/Tie/Sign.pm
cp GnuPG/Tie/Encrypt.pm blib/lib/GnuPG/Tie/Encrypt.pm
cp GnuPG/Tie/Decrypt.pm blib/lib/GnuPG/Tie/Decrypt.pm
cp gpgmailtunl blib/script/gpgmailtunl
"/usr/bin/perl" -MExtUtils::MY -e 'MY->fixin(shift)' -- blib/script/gpgmailtunl
Manifying 1 pod document
Manifying 2 pod documents
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
   debian/rules override_dh_auto_test
make[1]: Entering directory '/<<PKGBUILDDIR>>'
cp -r /<<PKGBUILDDIR>>/test /<<PKGBUILDDIR>>/test.ori
dh_auto_test
	make -j1 test TEST_VERBOSE=1
make[2]: Entering directory '/<<PKGBUILDDIR>>'
PERL_DL_NONLAZY=1 PERL_USE_UNSAFE_INC=1 "/usr/bin/perl" "-Iblib/lib" "-Iblib/arch" test.pl
1..26
# Generating a key - can take some time
E: Build killed with signal TERM after 30 minutes of inactivity
--------------------------------------------------------------------------------

[ This package usually takes 8 seconds to build, so 30 minutes of inactivity
  should be more than enough ]
 
I've put several build logs here:

https://people.debian.org/~sanvila/build-logs/libgnupg-perl/

I suspect of lack of entropy. I'm using "randomly" in the subject because
the buildability of this package seems to depend on something which
is not available from a build-depends, and it's not guaranteed
to be present (I refer to entropy, of course).

Thanks.