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<?xml version="1.0" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>README.irix - Perl version 5 on Irix systems</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:" /> </head> <body style="background-color: white"> <table border="0" width="100%" cellspacing="0" cellpadding="3"> <tr><td class="block" style="background-color: #cccccc" valign="middle"> <big><strong><span class="block"> README.irix - Perl version 5 on Irix systems</span></strong></big> </td></tr> </table> <!-- INDEX BEGIN --> <div name="index"> <p><a name="__index__"></a></p> <ul> <li><a href="#name">NAME</a></li> <li><a href="#description">DESCRIPTION</a></li> <ul> <li><a href="#building_32_bit_perl_in_irix">Building 32-bit Perl in Irix</a></li> <li><a href="#building_64_bit_perl_in_irix">Building 64-bit Perl in Irix</a></li> <li><a href="#about_compiler_versions_of_irix">About Compiler Versions of Irix</a></li> <li><a href="#linker_problems_in_irix">Linker Problems in Irix</a></li> <li><a href="#malloc_in_irix">Malloc in Irix</a></li> <li><a href="#building_with_threads_in_irix">Building with threads in Irix</a></li> <li><a href="#irix_5_3">Irix 5.3</a></li> </ul> <li><a href="#author">AUTHOR</a></li> </ul> <hr name="index" /> </div> <!-- INDEX END --> <p> </p> <h1><a name="name">NAME</a></h1> <p>README.irix - Perl version 5 on Irix systems</p> <p> </p> <hr /> <h1><a name="description">DESCRIPTION</a></h1> <p>This document describes various features of Irix that will affect how Perl version 5 (hereafter just Perl) is compiled and/or runs.</p> <p> </p> <h2><a name="building_32_bit_perl_in_irix">Building 32-bit Perl in Irix</a></h2> <p>Use</p> <pre> sh Configure -Dcc='cc -n32'</pre> <p>to compile Perl 32-bit. Don't bother with -n32 unless you have 7.1 or later compilers (use cc -version to check).</p> <p>(Building 'cc -n32' is the default.)</p> <p> </p> <h2><a name="building_64_bit_perl_in_irix">Building 64-bit Perl in Irix</a></h2> <p>Use</p> <pre> sh Configure -Dcc='cc -64' -Duse64bitint</pre> <p>This requires require a 64-bit MIPS CPU (R8000, R10000, ...)</p> <p>You can also use</p> <pre> sh Configure -Dcc='cc -64' -Duse64bitall</pre> <p>but that makes no difference compared with the -Duse64bitint because of the <code>cc -64</code>.</p> <p>You can also do</p> <pre> sh Configure -Dcc='cc -n32' -Duse64bitint</pre> <p>to use long longs for the 64-bit integer type, in case you don't have a 64-bit CPU.</p> <p>If you are using gcc, just</p> <pre> sh Configure -Dcc=gcc -Duse64bitint</pre> <p>should be enough, the Configure should automatically probe for the correct 64-bit settings.</p> <p> </p> <h2><a name="about_compiler_versions_of_irix">About Compiler Versions of Irix</a></h2> <p>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 SGI. (Allen Smith <<a href="mailto:easmith@beatrice.rutgers.edu">easmith@beatrice.rutgers.edu</a>>)</p> <p> </p> <h2><a name="linker_problems_in_irix">Linker Problems in Irix</a></h2> <p>If you get complaints about so_locations then search in the file hints/irix_6.sh for "lddflags" and do the suggested adjustments. (David Billinghurst <<a href="mailto:David.Billinghurst@riotinto.com.au">David.Billinghurst@riotinto.com.au</a>>)</p> <p> </p> <h2><a name="malloc_in_irix">Malloc in Irix</a></h2> <p>Do not try to use Perl's malloc, this will lead into very mysterious errors (especially with -Duse64bitall).</p> <p> </p> <h2><a name="building_with_threads_in_irix">Building with threads in Irix</a></h2> <p>Run Configure with -Duseithreads which will configure Perl with the Perl 5.8.0 "interpreter threads", see <a href="file://C|\ADE\aime_smenon_perl_090715\perl\html/lib/threads.html">the threads manpage</a>.</p> <p>For Irix 6.2 with perl threads, you have to have the following patches installed:</p> <pre> 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</pre> <p><strong>IMPORTANT</strong>: 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 and later are okay.</p> <pre> Thanks to Hannu Napari <Hannu.Napari@hut.fi> for the IRIX pthreads patches information.</pre> <p> </p> <h2><a name="irix_5_3">Irix 5.3</a></h2> <p>While running Configure and when building, you are likely to get quite a few of these warnings:</p> <pre> ld: The shared object /usr/lib/libm.so did not resolve any symbols. You may want to remove it from your link line.</pre> <p>Ignore them: in IRIX 5.3 there is no way to quieten ld about this.</p> <p>During compilation you will see this warning from toke.c:</p> <pre> uopt: Warning: Perl_yylex: this procedure not optimized because it exceeds size threshold; to optimize this procedure, use -Olimit option with value >= 4252.</pre> <p>Ignore the warning.</p> <p>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.</p> <pre> 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.</pre> <p>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.</p> <p> </p> <hr /> <h1><a name="author">AUTHOR</a></h1> <p>Jarkko Hietaniemi <<a href="mailto:jhi@iki.fi">jhi@iki.fi</a>></p> <p>Please report any errors, updates, or suggestions to <em class="file"><a href="mailto:perlbug@perl.org">perlbug@perl.org</a></em>.</p> <table border="0" width="100%" cellspacing="0" cellpadding="3"> <tr><td class="block" style="background-color: #cccccc" valign="middle"> <big><strong><span class="block"> README.irix - Perl version 5 on Irix systems</span></strong></big> </td></tr> </table> </body> </html>
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