It may be possible to use the Entropy Gathering Daemon (written in
Perl!), available from L<http://www.lothar.com/tech/crypto/>.
+=head1 SunOS 4.x
+
+In SunOS 4.x you most probably want to use the SunOS ld, /usr/bin/ld,
+since the more recent versions of GNU ld (like 2.13) do not seem to
+work for building Perl anymore. When linking the extensions, the
+GNU ld gets very unhappy and spews a lot of errors like this
+
+ ... relocation truncated to fit: BASE13 ...
+
+and dies. Therefore the SunOS 4.1 hints file explicitly sets the
+ld to be /usr/bin/ld.
+
+As of Perl 5.8.1 the dynamic loading of libraries (DynaLoader, XSLoader)
+also seems to have become broken in in SunOS 4.x. Therefore the default
+is to build Perl statically.
+
+Running the test suite in SunOS 4.1 is a bit tricky since the
+F<lib/Tie/File/t/09_gen_rs> test hangs (subtest #51, FWIW) for some
+unknown reason. Just stop the test and kill that particular Perl
+process.
+
+There are various other failures, that as of SunOS 4.1.4 and gcc 3.2.2
+look a lot like gcc bugs. Many of the failures happen in the Encode
+tests, where for example when the test expects "0" you get "0"
+which should after a little squinting look very odd indeed.
+Another example is earlier in F<t/run/fresh_perl> where chr(0xff) is
+expected but the test fails because the result is chr(0xff). Exactly.
+
+This is the "make test" result from the said combination:
+
+ Failed 27 test scripts out of 745, 96.38% okay.
+
+Running the C<harness> is painful because of the many failing
+Unicode-related tests will output megabytes of failure messages,
+but if one patiently waits, one gets these results:
+
+ Failed Test Stat Wstat Total Fail Failed List of Failed
+ -----------------------------------------------------------------------------
+ ...
+ ../ext/Encode/t/at-cn.t 4 1024 29 4 13.79% 14-17
+ ../ext/Encode/t/at-tw.t 10 2560 17 10 58.82% 2 4 6 8 10 12
+ 14-17
+ ../ext/Encode/t/enc_data.t 29 7424 ?? ?? % ??
+ ../ext/Encode/t/enc_eucjp.t 29 7424 ?? ?? % ??
+ ../ext/Encode/t/enc_module.t 29 7424 ?? ?? % ??
+ ../ext/Encode/t/encoding.t 29 7424 ?? ?? % ??
+ ../ext/Encode/t/grow.t 12 3072 24 12 50.00% 2 4 6 8 10 12 14
+ 16 18 20 22 24
+ Failed Test Stat Wstat Total Fail Failed List of Failed
+ ------------------------------------------------------------------------------
+ ../ext/Encode/t/guess.t 255 65280 29 40 137.93% 10-29
+ ../ext/Encode/t/jperl.t 29 7424 15 30 200.00% 1-15
+ ../ext/Encode/t/mime-header.t 2 512 10 2 20.00% 2-3
+ ../ext/Encode/t/perlio.t 22 5632 38 22 57.89% 1-4 9-16 19-20
+ 23-24 27-32
+ ../ext/List/Util/t/shuffle.t 0 139 ?? ?? % ??
+ ../ext/PerlIO/t/encoding.t 14 1 7.14% 11
+ ../ext/PerlIO/t/fallback.t 9 2 22.22% 3 5
+ ../ext/Socket/t/socketpair.t 0 2 45 70 155.56% 11-45
+ ../lib/CPAN/t/vcmp.t 30 1 3.33% 25
+ ../lib/Tie/File/t/09_gen_rs.t 0 15 ?? ?? % ??
+ ../lib/Unicode/Collate/t/test.t 199 30 15.08% 7 26-27 71-75
+ 81-88 95 101
+ 103-104 106 108-
+ 109 122 124 161
+ 169-172
+ ../lib/sort.t 0 139 119 26 21.85% 107-119
+ op/alarm.t 4 1 25.00% 4
+ op/utfhash.t 97 1 1.03% 31
+ run/fresh_perl.t 91 1 1.10% 32
+ uni/tr_7jis.t ?? ?? % ??
+ uni/tr_eucjp.t 29 7424 6 12 200.00% 1-6
+ uni/tr_sjis.t 29 7424 6 12 200.00% 1-6
+ 56 tests and 467 subtests skipped.
+ Failed 27/811 test scripts, 96.67% okay. 1383/75399 subtests failed, 98.17% okay.
+
+The alarm() test failure is caused by system() apparently blocking
+alarm(). That is probably a libc bug, and given that SunOS 4.x
+has been end-of-lifed years ago, don't hold your breath for a fix.
+In addition to that, don't try anything too Unicode-y, especially
+with Encode, and you should be fine in SunOS 4.x.
+
=head1 AUTHOR
The original was written by Andy Dougherty F<doughera@lafayette.edu>