Thanks to Hannu Napari <Hannu.Napari@hut.fi> for the IRIX
pthreads patches information.
+=head2 Irix 5.3
+
+While running Configure and when building, you are likely to get
+quite a few of these warnings:
+
+ ld:
+ The shared object /usr/lib/libm.so did not resolve any symbols.
+ You may want to remove it from your link line.
+
+Ignore them: in IRIX 5.3 there is no way to quieten ld about this.
+
+During compilation you will see this warning from toke.c:
+
+ uopt: Warning: Perl_yylex: this procedure not optimized because it
+ exceeds size threshold; to optimize this procedure, use -Olimit option
+ with value >= 4252.
+
+Ignore the warning.
+
+In IRIX 5.3 and with Perl 5.8.1 (Perl 5.8.0 didn't compile in IRIX 5.3)
+the following failures are known.
+
+ Failed Test Stat Wstat Total Fail Failed List of Failed
+ --------------------------------------------------------------------------
+ ../ext/List/Util/t/shuffle.t 0 139 ?? ?? % ??
+ ../lib/Math/Trig.t 255 65280 29 12 41.38% 24-29
+ ../lib/sort.t 0 138 119 72 60.50% 48-119
+ 56 tests and 474 subtests skipped.
+ Failed 3/811 test scripts, 99.63% okay. 78/75813 subtests failed, 99.90% okay.
+
+They are suspected to be compiler errors (at least the shuffle.t
+failure is known from some IRIX 6 setups) and math library errors
+(the Trig.t failure), but since IRIX 5 is long since end-of-lifed,
+further fixes for the IRIX are unlikely. If you can get gcc for 5.3,
+you could try that, too, since gcc in IRIX 6 is a known workaround for
+at least the shuffle.t and sort.t failures.
+
=head1 AUTHOR
Jarkko Hietaniemi <jhi@iki.fi>