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.TH PERLIRIX 1 "2006-01-07" "perl v5.8.8" "Perl Programmers Reference Guide"
README.irix \- Perl version 5 on Irix systems
This document describes various features of Irix that will affect how Perl
version 5 (hereafter just Perl) is compiled and/or runs.
.Sh "Building 32\-bit Perl in Irix"
.IX Subsection "Building 32-bit Perl in Irix"
\& sh Configure -Dcc='cc -n32'
to compile Perl 32\-bit. Don't bother with \-n32 unless you have 7.1
or later compilers (use cc \-version to check).
(Building 'cc \-n32' is the default.)
.Sh "Building 64\-bit Perl in Irix"
.IX Subsection "Building 64-bit Perl in Irix"
\& sh Configure -Dcc='cc -64' -Duse64bitint
This requires require a 64\-bit \s-1MIPS\s0 \s-1CPU\s0 (R8000, R10000, ...)
\& sh Configure -Dcc='cc -64' -Duse64bitall
but that makes no difference compared with the \-Duse64bitint because
of the \f(CW\*(C`cc \-64\*(C'\fR.
\& sh Configure -Dcc='cc -n32' -Duse64bitint
to use long longs for the 64\-bit integer type, in case you don't
have a 64\-bit \s-1CPU\s0.
If you are using gcc, just
\& sh Configure -Dcc=gcc -Duse64bitint
should be enough, the Configure should automatically probe for the
correct 64\-bit settings.
.Sh "About Compiler Versions of Irix"
.IX Subsection "About Compiler Versions of Irix"
Some Irix cc versions, e.g. 7.3.1.1m (try cc \-version) have been known
to have issues (coredumps) when compiling perl.c. If you've used
\&\-OPT:fast_io=ON and this happens, try removing it. If that fails, or
you didn't use that, then try adjusting other optimization options
(\-LNO, \-INLINE, \-O3 to \-O2, etcetera). The compiler bug has been
reported to \s-1SGI\s0. (Allen Smith <easmith@beatrice.rutgers.edu>)
.Sh "Linker Problems in Irix"
.IX Subsection "Linker Problems in Irix"
If you get complaints about so_locations then search in the file
hints/irix_6.sh for \*(L"lddflags\*(R" and do the suggested adjustments.
(David Billinghurst <David.Billinghurst@riotinto.com.au>)
.IX Subsection "Malloc in Irix"
Do not try to use Perl's malloc, this will lead into very mysterious
errors (especially with \-Duse64bitall).
.Sh "Building with threads in Irix"
.IX Subsection "Building with threads in Irix"
Run Configure with \-Duseithreads which will configure Perl with
the new Perl 5.8.0 \*(L"interpreter threads\*(R", see threads.
The old Perl 5.005 threads is obsolete, unmaintained, and its use is
discouraged. If you really want it, run Configure with the
\&\-Dusethreads \-Duse5005threads options as described in \s-1INSTALL\s0.
For either thread model and for Irix 6.2, you have to have the
following patches installed:
\& 1404 Irix 6.2 Posix 1003.1b man pages
\& 1645 Irix 6.2 & 6.3 POSIX header file updates
\& 2000 Irix 6.2 Posix 1003.1b support modules
\& 2254 Pthread library fixes
\& 2401 6.2 all platform kernel rollup
\&\fB\s-1IMPORTANT\s0\fR: Without patch 2401, a kernel bug in Irix 6.2 will cause
your machine to panic and crash when running threaded perl. Irix 6.3
\& Thanks to Hannu Napari <Hannu.Napari@hut.fi> for the IRIX
\& pthreads patches information.
.IX Subsection "Irix 5.3"
While running Configure and when building, you are likely to get
quite a few of these warnings:
\& 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 \s-1IRIX\s0 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
In \s-1IRIX\s0 5.3 and with Perl 5.8.1 (Perl 5.8.0 didn't compile in \s-1IRIX\s0 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 \s-1IRIX\s0 6 setups) and math library errors
(the Trig.t failure), but since \s-1IRIX\s0 5 is long since end\-of\-lifed,
further fixes for the \s-1IRIX\s0 are unlikely. If you can get gcc for 5.3,
you could try that, too, since gcc in \s-1IRIX\s0 6 is a known workaround for
at least the shuffle.t and sort.t failures.
Jarkko Hietaniemi <jhi@iki.fi>
Please report any errors, updates, or suggestions to \fIperlbug@perl.org\fR.
projects / OpenSPARC-T2-SAM / blob