1 If you read this file _as_is_, just ignore the funny characters you
2 see. It is written in the POD format (see pod/perlpod.pod) which is
3 specifically designed to be readable as is.
7 perlirix - Perl version 5 on Irix systems
11 This document describes various features of Irix that will affect how Perl
12 version 5 (hereafter just Perl) is compiled and/or runs.
14 =head2 Building 32-bit Perl in Irix
18 sh Configure -Dcc='cc -n32'
20 to compile Perl 32-bit. Don't bother with -n32 unless you have 7.1
21 or later compilers (use cc -version to check).
23 (Building 'cc -n32' is the default.)
25 =head2 Building 64-bit Perl in Irix
29 sh Configure -Dcc='cc -64' -Duse64bitint
31 This requires require a 64-bit MIPS CPU (R8000, R10000, ...)
35 sh Configure -Dcc='cc -64' -Duse64bitall
37 but that makes no difference compared with the -Duse64bitint because
42 sh Configure -Dcc='cc -n32' -Duse64bitint
44 to use long longs for the 64-bit integer type, in case you don't
47 If you are using gcc, just
49 sh Configure -Dcc=gcc -Duse64bitint
51 should be enough, the Configure should automatically probe for the
52 correct 64-bit settings.
54 =head2 About Compiler Versions of Irix
56 Some Irix cc versions, e.g. 7.3.1.1m (try cc -version) have been known
57 to have issues (coredumps) when compiling perl.c. If you've used
58 -OPT:fast_io=ON and this happens, try removing it. If that fails, or
59 you didn't use that, then try adjusting other optimization options
60 (-LNO, -INLINE, -O3 to -O2, et cetera). The compiler bug has been
61 reported to SGI. (Allen Smith <easmith@beatrice.rutgers.edu>)
63 =head2 Linker Problems in Irix
65 If you get complaints about so_locations then search in the file
66 hints/irix_6.sh for "lddflags" and do the suggested adjustments.
67 (David Billinghurst <David.Billinghurst@riotinto.com.au>)
71 Do not try to use Perl's malloc, this will lead into very mysterious
72 errors (especially with -Duse64bitall).
74 =head2 Building with threads in Irix
76 Run Configure with -Duseithreads which will configure Perl with
77 the Perl 5.8.0 "interpreter threads", see L<threads>.
79 For Irix 6.2 with perl threads, you have to have the following
82 1404 Irix 6.2 Posix 1003.1b man pages
83 1645 Irix 6.2 & 6.3 POSIX header file updates
84 2000 Irix 6.2 Posix 1003.1b support modules
85 2254 Pthread library fixes
86 2401 6.2 all platform kernel rollup
88 B<IMPORTANT>: Without patch 2401, a kernel bug in Irix 6.2 will cause
89 your machine to panic and crash when running threaded perl. Irix 6.3
92 Thanks to Hannu Napari <Hannu.Napari@hut.fi> for the IRIX
93 pthreads patches information.
97 While running Configure and when building, you are likely to get
98 quite a few of these warnings:
101 The shared object /usr/lib/libm.so did not resolve any symbols.
102 You may want to remove it from your link line.
104 Ignore them: in IRIX 5.3 there is no way to quieten ld about this.
106 During compilation you will see this warning from toke.c:
108 uopt: Warning: Perl_yylex: this procedure not optimized because it
109 exceeds size threshold; to optimize this procedure, use -Olimit
110 option with value >= 4252.
114 In IRIX 5.3 and with Perl 5.8.1 (Perl 5.8.0 didn't compile in IRIX 5.3)
115 the following failures are known.
117 Failed Test Stat Wstat Total Fail Failed|Failing List
118 -----------------------------------------------------------------------
119 ../ext/List/Util/t/shuffle.t 0 139 ?? ?? % ??
120 ../lib/Math/Trig.t 255 65280 29 12 41.38% 24-29
121 ../lib/sort.t 0 138 119 72 60.50% 48-119
122 56 tests and 474 subtests skipped.
123 Failed 3/811 test scripts, 99.63% okay. 78/75813 subtests failed,
126 They are suspected to be compiler errors (at least the shuffle.t
127 failure is known from some IRIX 6 setups) and math library errors
128 (the Trig.t failure), but since IRIX 5 is long since end-of-lifed,
129 further fixes for the IRIX are unlikely. If you can get gcc for 5.3,
130 you could try that, too, since gcc in IRIX 6 is a known workaround for
131 at least the shuffle.t and sort.t failures.
135 Jarkko Hietaniemi <jhi@iki.fi>
137 Please report any errors, updates, or suggestions to
138 L<https://github.com/Perl/perl5/issues>.