3 If you read this file _as_is_, just ignore the funny characters you
4 see. It is written in the POD format (see pod/perlpod.pod) which is
5 specifically designed to be readable as is.
9 perlirix - Perl version 5 on Irix systems
13 This document describes various features of Irix that will affect how Perl
14 version 5 (hereafter just Perl) is compiled and/or runs.
16 =head2 Building 32-bit Perl in Irix
20 sh Configure -Dcc='cc -n32'
22 to compile Perl 32-bit. Don't bother with -n32 unless you have 7.1
23 or later compilers (use cc -version to check).
25 (Building 'cc -n32' is the default.)
27 =head2 Building 64-bit Perl in Irix
31 sh Configure -Dcc='cc -64' -Duse64bitint
33 This requires require a 64-bit MIPS CPU (R8000, R10000, ...)
37 sh Configure -Dcc='cc -64' -Duse64bitall
39 but that makes no difference compared with the -Duse64bitint because
44 sh Configure -Dcc='cc -n32' -Duse64bitint
46 to use long longs for the 64-bit integer type, in case you don't
49 If you are using gcc, just
51 sh Configure -Dcc=gcc -Duse64bitint
53 should be enough, the Configure should automatically probe for the
54 correct 64-bit settings.
56 =head2 About Compiler Versions of Irix
58 Some Irix cc versions, e.g. 7.3.1.1m (try cc -version) have been known
59 to have issues (coredumps) when compiling perl.c. If you've used
60 -OPT:fast_io=ON and this happens, try removing it. If that fails, or
61 you didn't use that, then try adjusting other optimization options
62 (-LNO, -INLINE, -O3 to -O2, et cetera). The compiler bug has been
63 reported to SGI. (Allen Smith <easmith@beatrice.rutgers.edu>)
65 =head2 Linker Problems in Irix
67 If you get complaints about so_locations then search in the file
68 hints/irix_6.sh for "lddflags" and do the suggested adjustments.
69 (David Billinghurst <David.Billinghurst@riotinto.com.au>)
73 Do not try to use Perl's malloc, this will lead into very mysterious
74 errors (especially with -Duse64bitall).
76 =head2 Building with threads in Irix
78 Run Configure with -Duseithreads which will configure Perl with
79 the Perl 5.8.0 "interpreter threads", see L<threads>.
81 For Irix 6.2 with perl threads, you have to have the following
84 1404 Irix 6.2 Posix 1003.1b man pages
85 1645 Irix 6.2 & 6.3 POSIX header file updates
86 2000 Irix 6.2 Posix 1003.1b support modules
87 2254 Pthread library fixes
88 2401 6.2 all platform kernel rollup
90 B<IMPORTANT>: Without patch 2401, a kernel bug in Irix 6.2 will cause
91 your machine to panic and crash when running threaded perl. Irix 6.3
94 Thanks to Hannu Napari <Hannu.Napari@hut.fi> for the IRIX
95 pthreads patches information.
99 While running Configure and when building, you are likely to get
100 quite a few of these warnings:
103 The shared object /usr/lib/libm.so did not resolve any symbols.
104 You may want to remove it from your link line.
106 Ignore them: in IRIX 5.3 there is no way to quieten ld about this.
108 During compilation you will see this warning from toke.c:
110 uopt: Warning: Perl_yylex: this procedure not optimized because it
111 exceeds size threshold; to optimize this procedure, use -Olimit
112 option with value >= 4252.
116 In IRIX 5.3 and with Perl 5.8.1 (Perl 5.8.0 didn't compile in IRIX 5.3)
117 the following failures are known.
119 Failed Test Stat Wstat Total Fail Failed|Failing List
120 -----------------------------------------------------------------------
121 ../ext/List/Util/t/shuffle.t 0 139 ?? ?? % ??
122 ../lib/Math/Trig.t 255 65280 29 12 41.38% 24-29
123 ../lib/sort.t 0 138 119 72 60.50% 48-119
124 56 tests and 474 subtests skipped.
125 Failed 3/811 test scripts, 99.63% okay. 78/75813 subtests failed,
128 They are suspected to be compiler errors (at least the shuffle.t
129 failure is known from some IRIX 6 setups) and math library errors
130 (the Trig.t failure), but since IRIX 5 is long since end-of-lifed,
131 further fixes for the IRIX are unlikely. If you can get gcc for 5.3,
132 you could try that, too, since gcc in IRIX 6 is a known workaround for
133 at least the shuffle.t and sort.t failures.
137 Jarkko Hietaniemi <jhi@iki.fi>
139 Please report any errors, updates, or suggestions to
140 L<https://github.com/Perl/perl5/issues>.