.\" Automatically generated by Pod::Man 2.25 (Pod::Simple 3.16) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. 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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" README.irix \- Perl version 5 on Irix systems .SH "DESCRIPTION" .IX Header "DESCRIPTION" This document describes various features of Irix that will affect how Perl version 5 (hereafter just Perl) is compiled and/or runs. .SS "Building 32\-bit Perl in Irix" .IX Subsection "Building 32-bit Perl in Irix" Use .PP .Vb 1 \& sh Configure \-Dcc=\*(Aqcc \-n32\*(Aq .Ve .PP to compile Perl 32\-bit. Don't bother with \-n32 unless you have 7.1 or later compilers (use cc \-version to check). .PP (Building 'cc \-n32' is the default.) .SS "Building 64\-bit Perl in Irix" .IX Subsection "Building 64-bit Perl in Irix" Use .PP .Vb 1 \& sh Configure \-Dcc=\*(Aqcc \-64\*(Aq \-Duse64bitint .Ve .PP This requires require a 64\-bit \s-1MIPS\s0 \s-1CPU\s0 (R8000, R10000, ...) .PP You can also use .PP .Vb 1 \& sh Configure \-Dcc=\*(Aqcc \-64\*(Aq \-Duse64bitall .Ve .PP but that makes no difference compared with the \-Duse64bitint because of the \f(CW\*(C`cc \-64\*(C'\fR. .PP You can also do .PP .Vb 1 \& sh Configure \-Dcc=\*(Aqcc \-n32\*(Aq \-Duse64bitint .Ve .PP to use long longs for the 64\-bit integer type, in case you don't have a 64\-bit \s-1CPU\s0. .PP If you are using gcc, just .PP .Vb 1 \& sh Configure \-Dcc=gcc \-Duse64bitint .Ve .PP should be enough, the Configure should automatically probe for the correct 64\-bit settings. .SS "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 ) .SS "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 ) .SS "Malloc in Irix" .IX Subsection "Malloc in Irix" Do not try to use Perl's malloc, this will lead into very mysterious errors (especially with \-Duse64bitall). .SS "Building with threads in Irix" .IX Subsection "Building with threads in Irix" Run Configure with \-Duseithreads which will configure Perl with the Perl 5.8.0 \*(L"interpreter threads\*(R", see threads. .PP For Irix 6.2 with perl threads, you have to have the following patches installed: .PP .Vb 5 \& 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 .Ve .PP \&\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 and later are okay. .PP .Vb 2 \& Thanks to Hannu Napari for the IRIX \& pthreads patches information. .Ve .SS "Irix 5.3" .IX Subsection "Irix 5.3" While running Configure and when building, you are likely to get quite a few of these warnings: .PP .Vb 3 \& ld: \& The shared object /usr/lib/libm.so did not resolve any symbols. \& You may want to remove it from your link line. .Ve .PP Ignore them: in \s-1IRIX\s0 5.3 there is no way to quieten ld about this. .PP During compilation you will see this warning from toke.c: .PP .Vb 3 \& uopt: Warning: Perl_yylex: this procedure not optimized because it \& exceeds size threshold; to optimize this procedure, use \-Olimit option \& with value >= 4252. .Ve .PP Ignore the warning. .PP 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. .PP .Vb 7 \& 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. .Ve .PP 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. .SH "AUTHOR" .IX Header "AUTHOR" Jarkko Hietaniemi .PP Please report any errors, updates, or suggestions to \fIperlbug@perl.org\fR.