amigaos4: use afstat for fstat

[perl5.git] / README.irix

diff --git a/README.irix b/README.irix
index dddb5ff..23cc17b 100644 (file)
--- a/README.irix
+++ b/README.irix
@@ -4,7 +4,7 @@ specifically designed to be readable as is.
 
 =head1 NAME
 
-README.irix - Perl version 5 on Irix systems
+perlirix - Perl version 5 on Irix systems
 
 =head1 DESCRIPTION
 
@@ -25,10 +25,31 @@ or later compilers (use cc -version to check).
 =head2 Building 64-bit Perl in Irix
 
 Use
-       
-       sh Configure -Dcc='cc -64'
 
-to compiler Perl 64-bit.
+       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
 
@@ -50,9 +71,13 @@ hints/irix_6.sh for "lddflags" and do the suggested adjustments.
 Do not try to use Perl's malloc, this will lead into very mysterious
 errors (especially with -Duse64bitall).
 
-=head2 Building with threads
+=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, you have to have the following patches installed:
+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
@@ -60,10 +85,50 @@ For Irix 6.2, you have to have the following patches installed:
         2254 Pthread library fixes
         2401 6.2 all platform kernel rollup
 
-IMPORTANT: Without patch 2401, a kernel bug in Irix 6.2 will cause
+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>