Update to Unicode 3.1.1.

[perl5.git] / README.aix

diff --git a/README.aix b/README.aix
index bf83535..45a0621 100644 (file)
--- a/README.aix
+++ b/README.aix
@@ -24,16 +24,23 @@ of these two (which is quite a lot easier than using gcc), be sure to
 upgrade to the latest available patch level. Currently:
 
     xlC.C     3.1.4.0
-    vac.C     4.4.0.3  (5.0 is already available)
+    vac.C     4.4.0.3 or 5.0.2.0
 
 Perl can be compiled with either IBM's ANSI C compiler or with gcc.
 The former is recommended, as not only can it compile Perl with no
 difficulty, but also can take advantage of features listed later that
 require the use of IBM compiler-specific command-line flags.
 
+The IBM's compiler patch levels 5.0.0.0 and 5.0.1.0 have compiler
+optimization bugs that affect compiling perl.c and regcomp.c,
+respectively.  If Perl's configuration detects those compiler patch
+levels, optimization is turned off for the said source code files.
+Upgrading to at least 5.0.2.0 is recommended.
+
 If you decide to use gcc, make sure your installation is recent and
 complete, and be sure to read the Perl README file for more gcc-specific
-details.
+details. Please report any hoops you had to jump through to the development
+team.
 
 =head2 OS level
 
@@ -54,12 +61,20 @@ AIX supports dynamically loadable libraries (shared libraries).
 Shared libraries end with the suffix .a, which is a bit misleading,
 because *all* libraries are shared ;-).
 
+Note that starting from Perl 5.7.2 (and consequently 5.8.0) and AIX
+4.3 or newer Perl uses the AIX native dynamic loading interface
+instead of the emulated interface that was used in Perl releases 5.6.1
+and earlier or, for AIX releases 4.2 and earlier.  This change will
+probably break backward compatibility with compiled modules.
+The change was made to make Perl more compliant with other applications
+like modperl which are using the AIX native interface.
+
 =head2 The IBM ANSI C Compiler
 
 All defaults for Configure can be used.
 
 If you've chosen to use vac 4, be sure to run 4.4.0.3. Older versions
-will turn up nasty later on.
+will turn up nasty later on. For vac 5 be sure to run at least 5.0.1.0.
 
 Here's a brief lead of how to upgrade the compiler to the latest
 level.  Of course this is subject to changes.  You can only upgrade
@@ -139,27 +154,32 @@ Follow the messages ... and you're done.
 
 =head2 Using GNU's gcc for building perl
 
-... ?
+We're woking on this using gcc-3.0 ... (any input highly appreciated)
 
 =head2 Using Large Files with Perl
 
-... ?
+Should yield no problems.
 
 =head2 Threaded Perl
 
-... ?
+Threads seem to work OK, though at the moment not all tests pass when
+threads are used in combination with 64bit configurations.
 
 =head2 64-bit Perl
 
-... ?
-
-=head2 GDBM and Threads
-
-... ?
+If your AIX is installed with 64-bit support, you can expect 64bit
+configurations to work. In combination with threads some tests might
+still fail.
 
-=head2 NFS filesystems and utime(2)
+=head2 AIX 4.2 and extensions using C++ with statics
 
-... ?
+In AIX 4.2 Perl extensions that use C++ functions that use statics
+may have problems in that the statics are not getting initialized.
+In newer AIX releases this has been solved by linking Perl with
+the libC_r library, but unfortunately in AIX 4.2 the said library
+has an obscure bug where the various functions related to time
+(such as time() and gettimeofday()) return broken values, and
+therefore in AIX 4.2 Perl is not linked against the libC_r.
 
 =head1 AUTHOR
 
@@ -169,6 +189,6 @@ Structure copied from README.hpux
 
 =head1 DATE
 
-Version 0.0.1: 16-10-2000
+Version 0.0.3: 12 Jul 2001
 
 =cut