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diff --git a/Master/tlpkg/tlperl/lib/pods/perlirix.pod b/Master/tlpkg/tlperl/lib/pods/perlirix.pod new file mode 100644 index 00000000000..911a2514b3a --- /dev/null +++ b/Master/tlpkg/tlperl/lib/pods/perlirix.pod @@ -0,0 +1,137 @@ +If you read this file _as_is_, just ignore the funny characters you +see. It is written in the POD format (see pod/perlpod.pod) which is +specifically designed to be readable as is. + +=head1 NAME + +README.irix - Perl version 5 on Irix systems + +=head1 DESCRIPTION + +This document describes various features of Irix that will affect how Perl +version 5 (hereafter just Perl) is compiled and/or runs. + +=head2 Building 32-bit Perl in Irix + +Use + + 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.) + +=head2 Building 64-bit Perl in Irix + +Use + + sh Configure -Dcc='cc -64' -Duse64bitint + +This requires require a 64-bit MIPS CPU (R8000, R10000, ...) + +You can also use + + sh Configure -Dcc='cc -64' -Duse64bitall + +but that makes no difference compared with the -Duse64bitint because +of the C<cc -64>. + +You can also do + + 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 CPU. + +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. + +=head2 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 SGI. (Allen Smith <easmith@beatrice.rutgers.edu>) + +=head2 Linker Problems in Irix + +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 <David.Billinghurst@riotinto.com.au>) + +=head2 Malloc in Irix + +Do not try to use Perl's malloc, this will lead into very mysterious +errors (especially with -Duse64bitall). + +=head2 Building with threads in Irix + +Run Configure with -Duseithreads which will configure Perl with +the Perl 5.8.0 "interpreter threads", see L<threads>. + +For Irix 6.2 with perl threads, 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 + +B<IMPORTANT>: 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. + + 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> + +Please report any errors, updates, or suggestions to F<perlbug@perl.org>. + |