.\" Automatically generated by Pod::Man v1.34, Pod::Parser v1.13 .\" .\" Standard preamble: .\" ======================================================================== .de Sh \" Subsection heading .br .if t .Sp .ne 5 .PP \fB\\$1\fR .PP .. .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. | will give a .\" real vertical bar. \*(C+ will give a nicer C++. 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If you decide to use either of these two (which is quite a lot easier than using gcc), be sure to upgrade to the latest available patch level. Currently: .PP .Vb 2 \& xlC.C 3.1.4.10 or 3.6.6.0 or 5.0.2.6 \& vac.C 4.4.0.3 or 5.0.2.4 .Ve .PP Perl can be compiled with either \s-1IBM\s0's \s-1ANSI\s0 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 \s-1IBM\s0 compiler-specific command-line flags. .PP The \s-1IBM\s0'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. .PP If you decide to use gcc, make sure your installation is recent and complete, and be sure to read the Perl \s-1README\s0 file for more gcc-specific details. Please report any hoops you had to jump through to the development team. .Sh "\s-1OS\s0 level" .IX Subsection "OS level" Before installing the patches to the \s-1IBM\s0 C\-compiler you need to know the level of patching for the Operating System. \s-1IBM\s0's command 'oslevel' will show the base, but is not always complete (in this example oslevel shows 4.3.NULL, whereas the system might run most of 4.3.THREE): .PP .Vb 6 \& # oslevel \& 4.3.0.0 \& # lslpp -l | grep 'bos.rte ' \& bos.rte 4.3.3.75 COMMITTED Base Operating System Runtime \& bos.rte 4.3.2.0 COMMITTED Base Operating System Runtime \& # .Ve .PP The same might happen to \s-1AIX\s0 5.1 or other \s-1OS\s0 levels. As a side note, perl cannot be built without bos.adt.syscalls and bos.adt.libm installed .PP .Vb 4 \& # lslpp -l | egrep "syscalls|libm" \& bos.adt.libm 5.1.0.25 COMMITTED Base Application Development \& bos.adt.syscalls 5.1.0.25 COMMITTED System Calls Application \& # .Ve .Sh "Building Dynamic Extensions on \s-1AIX\s0" .IX Subsection "Building Dynamic Extensions on AIX" \&\s-1AIX\s0 supports dynamically loadable objects as well as shared libraries. Shared libraries by convention end with the suffix .a, which is a bit misleading, as an archive can contain static as well as dynamic members. For perl dynamically loaded objects we use the .so suffix also used on many other platforms. .PP Note that starting from Perl 5.7.2 (and consequently 5.8.0) and \s-1AIX\s0 4.3 or newer Perl uses the \s-1AIX\s0 native dynamic loading interface in the so called runtime linking mode instead of the emulated interface that was used in Perl releases 5.6.1 and earlier or, for \s-1AIX\s0 releases 4.2 and earlier. This change does break backward compatibility with compiled modules from earlier perl releases. The change was made to make Perl more compliant with other applications like Apache/mod_perl which are using the \s-1AIX\s0 native interface. This change also enables the use of \*(C+ code with static constructors and destructors in perl extensions, which was not possible using the emulated interface. .Sh "The \s-1IBM\s0 \s-1ANSI\s0 C Compiler" .IX Subsection "The IBM ANSI C Compiler" All defaults for Configure can be used. .PP If you've chosen to use vac 4, be sure to run 4.4.0.3. Older versions will turn up nasty later on. For vac 5 be sure to run at least 5.0.1.0, but vac 5.0.2.3 or up is highly recommended. Note that since \s-1IBM\s0 has removed vac 5.0.2.1 and 5.0.2.2 from the software depot, these versions should be considered obsolete. .PP 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 versions from ftp-available updates if the first three digit groups are the same (in where you can skip intermediate unlike the patches in the developer snapshots of perl), or to one version up where the `base' is available. In other words, the \s-1AIX\s0 compiler patches are cumulative. .PP .Vb 2 \& vac.C.4.4.0.1 => vac.C.4.4.0.3 is OK (vac.C.4.4.0.2 not needed) \& xlC.C.3.1.3.3 => xlC.C.3.1.4.10 is NOT OK (xlC.C.3.1.4.0 is not available) .Ve .PP .Vb 23 \& # ftp ftp.software.ibm.com \& Connected to service.boulder.ibm.com. \& : welcome message ... \& Name (ftp.software.ibm.com:merijn): anonymous \& 331 Guest login ok, send your complete e-mail address as password. \& Password: \& ... accepted login stuff \& ftp> cd /aix/fixes/v4/ \& ftp> dir other other.ll \& output to local-file: other.ll? y \& 200 PORT command successful. \& 150 Opening ASCII mode data connection for /bin/ls. \& 226 Transfer complete. \& ftp> dir xlc xlc.ll \& output to local-file: xlc.ll? y \& 200 PORT command successful. \& 150 Opening ASCII mode data connection for /bin/ls. \& 226 Transfer complete. \& ftp> bye \& ... goodbye messages \& # ls -l *.ll \& -rw-rw-rw- 1 merijn system 1169432 Nov 2 17:29 other.ll \& -rw-rw-rw- 1 merijn system 29170 Nov 2 17:29 xlc.ll .Ve .PP On \s-1AIX\s0 4.2 using xlC, we continue: .PP .Vb 16 \& # lslpp -l | fgrep 'xlC.C ' \& xlC.C 3.1.4.9 COMMITTED C for AIX Compiler \& xlC.C 3.1.4.0 COMMITTED C for AIX Compiler \& # grep 'xlC.C.3.1.4.*.bff' xlc.ll \& -rw-r--r-- 1 45776101 1 6286336 Jul 22 1996 xlC.C.3.1.4.1.bff \& -rw-rw-r-- 1 45776101 1 6173696 Aug 24 1998 xlC.C.3.1.4.10.bff \& -rw-r--r-- 1 45776101 1 6319104 Aug 14 1996 xlC.C.3.1.4.2.bff \& -rw-r--r-- 1 45776101 1 6316032 Oct 21 1996 xlC.C.3.1.4.3.bff \& -rw-r--r-- 1 45776101 1 6315008 Dec 20 1996 xlC.C.3.1.4.4.bff \& -rw-rw-r-- 1 45776101 1 6178816 Mar 28 1997 xlC.C.3.1.4.5.bff \& -rw-rw-r-- 1 45776101 1 6188032 May 22 1997 xlC.C.3.1.4.6.bff \& -rw-rw-r-- 1 45776101 1 6191104 Sep 5 1997 xlC.C.3.1.4.7.bff \& -rw-rw-r-- 1 45776101 1 6185984 Jan 13 1998 xlC.C.3.1.4.8.bff \& -rw-rw-r-- 1 45776101 1 6169600 May 27 1998 xlC.C.3.1.4.9.bff \& # wget ftp://ftp.software.ibm.com/aix/fixes/v4/xlc/xlC.C.3.1.4.10.bff \& # .Ve .PP On \s-1AIX\s0 4.3 using vac, we continue: .PP .Vb 9 \& # lslpp -l | grep 'vac.C ' \& vac.C 5.0.2.2 COMMITTED C for AIX Compiler \& vac.C 5.0.2.0 COMMITTED C for AIX Compiler \& # grep 'vac.C.5.0.2.*.bff' other.ll \& -rw-rw-r-- 1 45776101 1 13592576 Apr 16 2001 vac.C.5.0.2.0.bff \& -rw-rw-r-- 1 45776101 1 14133248 Apr 9 2002 vac.C.5.0.2.3.bff \& -rw-rw-r-- 1 45776101 1 14173184 May 20 2002 vac.C.5.0.2.4.bff \& # wget ftp://ftp.software.ibm.com/aix/fixes/v4/other/vac.C.5.0.2.4.bff \& # .Ve .PP Likewise on all other \s-1OS\s0 levels. Then execute the following command, and fill in its choices .PP .Vb 5 \& # smit install_update \& -> Install and Update from LATEST Available Software \& * INPUT device / directory for software [ vac.C.5.0.2.4.bff ] \& [ OK ] \& [ OK ] .Ve .PP Follow the messages ... and you're done. .Sh "Using \s-1GNU\s0's gcc for building perl" .IX Subsection "Using GNU's gcc for building perl" Using gcc\-3.0 (tested with 3.0.4) now works out of the box, as do recent gcc\-2.9 builds available directly from \s-1IBM\s0 as part of their Linux compatibility packages, available here: .PP .Vb 1 \& http://www.ibm.com/servers/aix/products/aixos/linux/ .Ve .Sh "Using Large Files with Perl" .IX Subsection "Using Large Files with Perl" Should yield no problems. .Sh "Threaded Perl" .IX Subsection "Threaded Perl" Threads seem to work \s-1OK\s0, though at the moment not all tests pass when threads are used in combination with 64bit configurations. .Sh "64\-bit Perl" .IX Subsection "64-bit Perl" If your \s-1AIX\s0 is installed with 64\-bit support, you can expect 64bit configurations to work. In combination with threads some tests might still fail. .Sh "\s-1AIX\s0 4.2 and extensions using \*(C+ with statics" .IX Subsection "AIX 4.2 and extensions using with statics" In \s-1AIX\s0 4.2 Perl extensions that use \*(C+ functions that use statics may have problems in that the statics are not getting initialized. In newer \s-1AIX\s0 releases this has been solved by linking Perl with the libC_r library, but unfortunately in \s-1AIX\s0 4.2 the said library has an obscure bug where the various functions related to time (such as \fItime()\fR and \fIgettimeofday()\fR) return broken values, and therefore in \s-1AIX\s0 4.2 Perl is not linked against the libC_r. .SH "AUTHOR" .IX Header "AUTHOR" H.Merijn Brand .SH "DATE" .IX Header "DATE" Version 0.0.5: 22 May 2002