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Perl Programmers Reference Guide                      PERLHPUX(1)

     README.hpux - Perl version 5 on Hewlett-Packard Unix (HP-UX)

     This document describes various features of HP's Unix
     operating system (HP-UX) that will affect how Perl version 5
     (hereafter just Perl) is compiled and/or runs.

  Using perl as shipped with HP-UX
     Application release September 2001, HP-UX 11.00 is the first
     to ship with Perl. By the time it was perl-5.6.1 in
     /opt/perl. The first occurrence is on CD 5012-7954 and can
     be installed using

       swinstall -s /cdrom perl

     assuming you have mounted that CD on /cdrom. In this version
     the following modules were installed:

       ActivePerl::DocTools-0.04   HTML::Parser-3.19   XML::DOM-1.25
       Archive::Tar-0.072          HTML::Tagset-3.03   XML::Parser-2.27
       Compress::Zlib-1.08         MIME::Base64-2.11   XML::Simple-1.05
       Convert::ASN1-0.10          Net-1.07            XML::XPath-1.09
       Digest::MD5-2.11            PPM-2.1.5           XML::XSLT-0.32
       File::CounterFile-0.12      SOAP::Lite-0.46     libwww-perl-5.51
       Font::AFM-1.18              Storable-1.011      libxml-perl-0.07
       HTML-Tree-3.11              URI-1.11            perl-ldap-0.23

     That build was a portable hppa-1.1 multithread build that
     supports large files compiled with gcc-2.9-hppa-991112.

     If you perform a new installation, then (a newer) Perl will
     be installed automatically.  Preinstalled HP-UX systems now
     slao have more recent versions of Perl and the updated

     The official (threaded) builds from HP, as they are shipped
     on the Application DVD/CD's are available on
     for both PA-RISC and IPF (Itanium Processor Family). They
     are built with the HP ANSI-C compiler. Up till 5.8.8 that
     was done by ActiveState.

     To see what version is included on the DVD (assumed here to
     be mounted on /cdrom), issue this command:

       # swlist -s /cdrom perl
       # perl           D.5.8.8.B  5.8.8 Perl Programming Language
         perl.Perl5-32  D.5.8.8.B  32-bit 5.8.8 Perl Programming Language with Extensions
         perl.Perl5-64  D.5.8.8.B  64-bit 5.8.8 Perl Programming Language with Extensions

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  Using perl from HP's porting centre
     HP porting centre tries very hard to keep up with customer
     demand and release updates from the Open Source community.
     Having precompiled Perl binaries available is obvious.

     The HP porting centres are limited in what systems they are
     allowed to port to and they usually choose the two most
     recent OS versions available. This means that at the moment
     of writing, there are only HP-UX 11.11 (pa-risc 2.0) and HP-
     UX 11.23 (Itanium 2) ports available on the porting centres.

     HP has asked the porting centre to move Open Source binaries
     from /opt to /usr/local, so binaries produced since the
     start of July 2002 are located in /usr/local.

     One of HP porting centres URL's is The port currently available is
     built with GNU gcc.

  Compiling Perl 5 on HP-UX
     When compiling Perl, you must use an ANSI C compiler.  The C
     compiler that ships with all HP-UX systems is a K&R compiler
     that should only be used to build new kernels.

     Perl can be compiled with either HP'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 HP
     compiler-specific command-line flags.

     If you decide to use gcc, make sure your installation is
     recent and complete, and be sure to read the Perl INSTALL
     file for more gcc-specific details.

     HP's HP9000 Unix systems run on HP's own Precision
     Architecture (PA-RISC) chip.  HP-UX used to run on the
     Motorola MC68000 family of chips, but any machine with this
     chip in it is quite obsolete and this document will not
     attempt to address issues for compiling Perl on the Motorola

     The version of PA-RISC at the time of this document's last
     update is 2.0, which is also the last there will be. HP PA-
     RISC systems are usually refered to with model description
     "HP 9000". The last CPU in this series is the PA-8900.
     Support for PA-RISC architectured machines officially ends
     as shown in the following table:

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        PA-RISC End-of-Life Roadmap
      | HP9000 | Superdome      | PA-8700        | Spring 2011     |
      | 4-128  |                | PA-8800/sx1000 | Summer 2012     |
      | cores  |                | PA-8900/sx1000 | 2014            |
      |        |                | PA-8900/sx2000 | 2015            |
      | HP9000 | rp7410, rp8400 | PA-8700        | Spring 2011     |
      | 2-32   | rp7420, rp8420 | PA-8800/sx1000 | 2012            |
      | cores  | rp7440, rp8440 | PA-8900/sx1000 | Autumn 2013     |
      |        |                | PA-8900/sx2000 | 2015            |
      | HP9000 | rp44x0         | PA-8700        | Spring 2011     |
      | 1-8    |                | PA-8800/rp44x0 | 2012            |
      | cores  |                | PA-8900/rp44x0 | 2014            |
      | HP9000 | rp34x0         | PA-8700        | Spring 2011     |
      | 1-4    |                | PA-8800/rp34x0 | 2012            |
      | cores  |                | PA-8900/rp34x0 | 2014            |


      The last order date for HP 9000 systems was December 31, 2008.

     A complete list of models at the time the OS was built is in
     the file /usr/sam/lib/mo/sched.models. The first column
     corresponds to the last part of the output of the "model"
     command.  The second column is the PA-RISC version and the
     third column is the exact chip type used.  (Start browsing
     at the bottom to prevent confusion ;-)

       # model
       # grep L1000-44 /usr/sam/lib/mo/sched.models
       L1000-44        2.0     PA8500

  Portability Between PA-RISC Versions
     An executable compiled on a PA-RISC 2.0 platform will not
     execute on a PA-RISC 1.1 platform, even if they are running
     the same version of HP-UX.  If you are building Perl on a
     PA-RISC 2.0 platform and want that Perl to also run on a PA-
     RISC 1.1, the compiler flags +DAportable and +DS32 should be

     It is no longer possible to compile PA-RISC 1.0 executables
     on either the PA-RISC 1.1 or 2.0 platforms.  The command-
     line flags are accepted, but the resulting executable will
     not run when transferred to a PA-RISC 1.0 system.

  PA-RISC 1.0
     The original version of PA-RISC, HP no longer sells any

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     system with this chip.

     The following systems contained PA-RISC 1.0 chips:

       600, 635, 645, 808, 815, 822, 825, 832, 834, 835, 840, 842, 845, 850,
       852, 855, 860, 865, 870, 890

  PA-RISC 1.1
     An upgrade to the PA-RISC design, it shipped for many years
     in many different system.

     The following systems contain with PA-RISC 1.1 chips:

       705, 710, 712, 715, 720, 722, 725, 728, 730, 735, 742, 743, 744, 745,
       747, 750, 755, 770, 777, 778, 779, 800, 801, 803, 806, 807, 809, 811,
       813, 816, 817, 819, 821, 826, 827, 829, 831, 837, 839, 841, 847, 849,
       851, 856, 857, 859, 867, 869, 877, 887, 891, 892, 897, A180, A180C,
       B115, B120, B132L, B132L+, B160L, B180L, C100, C110, C115, C120,
       C160L, D200, D210, D220, D230, D250, D260, D310, D320, D330, D350,
       D360, D410, DX0, DX5, DXO, E25, E35, E45, E55, F10, F20, F30, G30,
       G40, G50, G60, G70, H20, H30, H40, H50, H60, H70, I30, I40, I50, I60,
       I70, J200, J210, J210XC, K100, K200, K210, K220, K230, K400, K410,
       K420, S700i, S715, S744, S760, T500, T520

  PA-RISC 2.0
     The most recent upgrade to the PA-RISC design, it added
     support for 64-bit integer data.

     As of the date of this document's last update, the following
     systems contain PA-RISC 2.0 chips:

       700, 780, 781, 782, 783, 785, 802, 804, 810, 820, 861, 871, 879, 889,
       893, 895, 896, 898, 899, A400, A500, B1000, B2000, C130, C140, C160,
       C180, C180+, C180-XP, C200+, C400+, C3000, C360, C3600, CB260, D270,
       D280, D370, D380, D390, D650, J220, J2240, J280, J282, J400, J410,
       J5000, J5500XM, J5600, J7000, J7600, K250, K260, K260-EG, K270, K360,
       K370, K380, K450, K460, K460-EG, K460-XP, K470, K570, K580, L1000,
       L2000, L3000, N4000, R380, R390, SD16000, SD32000, SD64000, T540,
       T600, V2000, V2200, V2250, V2500, V2600

     Just before HP took over Compaq, some systems were renamed.
     the link that contained the explanation is dead, so here's a
     short summary:

       HP 9000 A-Class servers, now renamed HP Server rp2400 series.
       HP 9000 L-Class servers, now renamed HP Server rp5400 series.
       HP 9000 N-Class servers, now renamed HP Server rp7400.

       rp2400, rp2405, rp2430, rp2450, rp2470, rp3410, rp3440, rp4410,
       rp4440, rp5400, rp5405, rp5430, rp5450, rp5470, rp7400, rp7405,
       rp7410, rp7420, rp7440, rp8400, rp8420, rp8440, Superdome

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     The current naming convention is:

       ||||`+- 00 - 99 relative capacity & newness (upgrades, etc.)
       |||`--- unique number for each architecture to ensure different
       |||     systems do not have the same numbering across
       |||     architectures
       ||`---- 1 - 9 identifies family and/or relative positioning
       |`----- c = ia32 (cisc)
       |       p = pa-risc
       |       x = ia-64 (Itanium & Itanium 2)
       |       h = housing
       `------ t = tower
               r = rack optimized
               s = super scalable
               b = blade
               sa = appliance

  Itanium Processor Family (IPF) and HP-UX
     HP-UX also runs on the new Itanium processor.  This requires
     the use of a different version of HP-UX (currently 11.23 or
     11i v2), and with the exception of a few differences
     detailed below and in later sections, Perl should compile
     with no problems.

     Although PA-RISC binaries can run on Itanium systems, you
     should not attempt to use a PA-RISC version of Perl on an
     Itanium system.  This is because shared libraries created on
     an Itanium system cannot be loaded while running a PA-RISC

     HP Itanium 2 systems are usually refered to with model
     description "HP Integrity".

  Itanium, Itanium 2 & Madison 6
     HP also ships servers with the 128-bit Itanium processor(s).
     The cx26x0 is told to have Madison 6. As of the date of this
     document's last update, the following systems contain
     Itanium or Itanium 2 chips (this is likely to be out of

       BL60p, BL860c, BL870c, cx2600, cx2620, rx1600, rx1620, rx2600,
       rx2600hptc, rx2620, rx2660, rx3600, rx4610, rx4640, rx5670,
       rx6600, rx7420, rx7620, rx7640, rx8420, rx8620, rx8640, rx9610,
       sx1000, sx2000

     To see all about your machine, type

       # model
       ia64 hp server rx2600
       # /usr/contrib/bin/machinfo

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  HP-UX versions
     Not all architectures (PA = PA-RISC, IPF = Itanium Processor
     Family) support all versions of HP-UX, here is a short list

       HP-UX version  Kernel  Architecture
       -------------  ------  ------------
       10.20          32 bit  PA
       11.00          32/64   PA
       11.11  11i v1  32/64   PA
       11.22  11i v2     64        IPF
       11.23  11i v2     64   PA & IPF
       11.31  11i v3     64   PA & IPF

     See for the full list of hardware/OS support and expected

  Building Dynamic Extensions on HP-UX
     HP-UX supports dynamically loadable libraries (shared
     libraries).  Shared libraries end with the suffix .sl.  On
     Itanium systems, they end with the suffix .so.

     Shared libraries created on a platform using a particular
     PA-RISC version are not usable on platforms using an earlier
     PA-RISC version by default.  However, this backwards
     compatibility may be enabled using the same +DAportable
     compiler flag (with the same PA-RISC 1.0 caveat mentioned

     Shared libraries created on an Itanium platform cannot be
     loaded on a PA-RISC platform.  Shared libraries created on a
     PA-RISC platform can only be loaded on an Itanium platform
     if it is a PA-RISC executable that is attempting to load the
     PA-RISC library.  A PA-RISC shared library cannot be loaded
     into an Itanium executable nor vice-versa.

     To create a shared library, the following steps must be

       1. Compile source modules with +z or +Z flag to create a .o module
          which contains Position-Independent Code (PIC).  The linker will
          tell you in the next step if +Z was needed.
          (For gcc, the appropriate flag is -fpic or -fPIC.)

       2. Link the shared library using the -b flag.  If the code calls
          any functions in other system libraries (e.g., libm), it must
          be included on this line.

     (Note that these steps are usually handled automatically by
     the extension's Makefile).

     If these dependent libraries are not listed at shared
     library creation time, you will get fatal "Unresolved

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     symbol" errors at run time when the library is loaded.

     You may create a shared library that refers to another
     library, which may be either an archive library or a shared
     library.  If this second library is a shared library, this
     is called a "dependent library".  The dependent library's
     name is recorded in the main shared library, but it is not
     linked into the shared library.  Instead, it is loaded when
     the main shared library is loaded.  This can cause problems
     if you build an extension on one system and move it to
     another system where the libraries may not be located in the
     same place as on the first system.

     If the referred library is an archive library, then it is
     treated as a simple collection of .o modules (all of which
     must contain PIC).  These modules are then linked into the
     shared library.

     Note that it is okay to create a library which contains a
     dependent library that is already linked into perl.

     Some extensions, like DB_File and Compress::Zlib use/require
     prebuilt libraries for the perl extensions/modules to work.
     If these libraries are built using the default
     configuration, it might happen that you run into an error
     like "invalid loader fixup" during load phase.  HP is aware
     of this problem.  Search the HP-UX cxx-dev forums for
     discussions about the subject.  The short answer is that
     everything (all libraries, everything) must be compiled with
     "+z" or "+Z" to be PIC (position independent code).  (For
     gcc, that would be "-fpic" or "-fPIC").  In HP-UX 11.00 or
     newer the linker error message should tell the name of the
     offending object file.

     A more general approach is to intervene manually, as with an
     example for the DB_File module, which requires SleepyCat's

       # cd .../db-3.2.9/build_unix
       # vi Makefile
       ... add +Z to all cflags to create shared objects
       CFLAGS=         -c $(CPPFLAGS) +Z -Ae +O2 +Onolimit \
                       -I/usr/local/include -I/usr/include/X11R6
       CXXFLAGS=       -c $(CPPFLAGS) +Z -Ae +O2 +Onolimit \
                       -I/usr/local/include -I/usr/include/X11R6

       # make clean
       # make
       # mkdir tmp
       # cd tmp
       # ar x ../libdb.a
       # ld -b -o *.o

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       # mv /usr/local/lib
       # rm *.o
       # cd /usr/local/lib
       # rm -f
       # ln -s

       # cd .../DB_File-1.76
       # make distclean
       # perl Makefile.PL
       # make
       # make test
       # make install

     As of db-4.2.x it is no longer needed to do this by hand.
     Sleepycat has changed the configuration process to add +z on
     HP-UX automatically.

       # cd .../db-4.2.25/build_unix
       # env CFLAGS=+DD64 LDFLAGS=+DD64 ../dist/configure

     should work to generate 64bit shared libraries for HP-UX
     11.00 and 11i.

     It is no longer possible to link PA-RISC 1.0 shared
     libraries (even though the command-line flags are still

     PA-RISC and Itanium object files are not interchangeable.
     Although you may be able to use ar to create an archive
     library of PA-RISC object files on an Itanium system, you
     cannot link against it using an Itanium link editor.

  The HP ANSI C Compiler
     When using this compiler to build Perl, you should make sure
     that the flag -Aa is added to the cpprun and cppstdin
     variables in the file (though see the section on
     64-bit perl below). If you are using a recent version of the
     Perl distribution, these flags are set automatically.

     Even though HP-UX 10.20 and 11.00 are not actively
     maintained by HP anymore, updates for the HP ANSI C compiler
     are still available from time to time, and it might be
     advisable to see if updates are applicable.  At the moment
     of writing, the latests available patches for 11.00 that
     should be applied are PHSS_35098, PHSS_35175, PHSS_35100,
     PHSS_33036, and PHSS_33902). If you have a SUM account, you
     can use it to search for updates/patches. Enter "ANSI" as

  The GNU C Compiler
     When you are going to use the GNU C compiler (gcc), and you
     don't have gcc yet, you can either build it yourself from

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     the sources (available from e.g. or
     fetch a prebuilt binary from the HP porting center. gcc
     prebuilds can be fetched from,1703,547,00.html
     (Browse through the list, because there are often multiple
     versions of the same package available).

     Above mentioned distributions are depots. H.Merijn Brand has
     made prebuilt gcc binaries available on and/or for HP-UX 10.20, HP-UX 11.00,
     HP-UX 11.11 (HP-UX 11i v1), and HP-UX 11.23 (HP-UX 11i v2)
     in both 32- and 64-bit versions. These are bzipped tar
     archives that also include recent GNU binutils and GNU gdb.
     Read the instructions on that page to rebuild gcc using

     On PA-RISC you need a different compiler for 32-bit
     applications and for 64-bit applications. On PA-RISC, 32-bit
     objects and 64-bit objects do not mix. Period. There is no
     different behaviour for HP C-ANSI-C or GNU gcc. So if you
     require your perl binary to use 64-bit libraries, like
     Oracle-64bit, you MUST build a 64-bit perl.

     Building a 64-bit capable gcc on PA-RISC from source is
     possible only when you have the HP C-ANSI C compiler or an
     already working 64-bit binary of gcc available. Best
     performance for perl is achieved with HP's native compiler.

  Using Large Files with Perl on HP-UX
     Beginning with HP-UX version 10.20, files larger than 2GB
     (2^31 bytes) may be created and manipulated.  Three separate
     methods of doing this are available.  Of these methods, the
     best method for Perl is to compile using the -Duselargefiles
     flag to Configure.  This causes Perl to be compiled using
     structures and functions in which these are 64 bits wide,
     rather than 32 bits wide.  (Note that this will only work
     with HP's ANSI C compiler.  If you want to compile Perl
     using gcc, you will have to get a version of the compiler
     that supports 64-bit operations. See above for where to find

     There are some drawbacks to this approach.  One is that any
     extension which calls any file-manipulating C function will
     need to be recompiled (just follow the usual "perl
     Makefile.PL; make; make test; make install" procedure).

     The list of functions that will need to recompiled is:
       creat,          fgetpos,        fopen,
       freopen,        fsetpos,        fstat,
       fstatvfs,       fstatvfsdev,    ftruncate,

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       ftw,            lockf,          lseek,
       lstat,          mmap,           nftw,
       open,           prealloc,       stat,
       statvfs,        statvfsdev,     tmpfile,
       truncate,       getrlimit,      setrlimit

     Another drawback is only valid for Perl versions before
     5.6.0.  This drawback is that the seek and tell functions
     (both the builtin version and POSIX module version) will not
     perform correctly.

     It is strongly recommended that you use this flag when you
     run Configure.  If you do not do this, but later answer the
     question about large files when Configure asks you, you may
     get a configuration that cannot be compiled, or that does
     not function as expected.

  Threaded Perl on HP-UX
     It is possible to compile a version of threaded Perl on any
     version of HP-UX before 10.30, but it is strongly suggested
     that you be running on HP-UX 11.00 at least.

     To compile Perl with threads, add -Dusethreads to the
     arguments of Configure.  Verify that the
     -D_POSIX_C_SOURCE=199506L compiler flag is automatically
     added to the list of flags.  Also make sure that -lpthread
     is listed before -lc in the list of libraries to link Perl
     with. The hints provided for HP-UX during Configure will try
     very hard to get this right for you.

     HP-UX versions before 10.30 require a separate installation
     of a POSIX threads library package. Two examples are the HP
     DCE package, available on "HP-UX Hardware Extensions 3.0,
     Install and Core OS, Release 10.20, April 1999
     (B3920-13941)" or the Freely available PTH package,
     available on H.Merijn's site
     ( The use of PTH will
     be unsupported in perl-5.12 and up and is rather buggy in

     If you are going to use the HP DCE package, the library used
     for threading is /usr/lib/, but there have been
     multiple updates of that library over time. Perl will build
     with the first version, but it will not pass the test suite.
     Older Oracle versions might be a compelling reason not to
     update that library, otherwise please find a newer version
     in one of the following patches: PHSS_19739, PHSS_20608, or

     reformatted output:

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       d3:/usr/lib 106 > what libcma-*.1
          HP DCE/9000 1.5               Module: (Export)
                                        Date: Apr 29 1996 22:11:24
          HP DCE/9000 1.5 PHSS_19739-40 Module: (Export)
                                        Date: Sep  4 1999 01:59:07
          HP DCE/9000 1.5 PHSS_20608    Module: libcma.1 (Export)
                                        Date: Dec  8 1999 18:41:23
          HP DCE/9000 1.5 PHSS_23672    Module: libcma.1 (Export)
                                        Date: Apr  9 2001 10:01:06
       d3:/usr/lib 107 >

     If you choose for the PTH package, use swinstall to install
     pth in the default location (/opt/pth), and then make
     symbolic links to the libraries from /usr/lib

       # cd /usr/lib
       # ln -s /opt/pth/lib/libpth* .

     For building perl to support Oracle, it needs to be linked
     with libcl and libpthread. So even if your perl is an
     unthreaded build, these libraries might be required. See
     "Oracle on HP-UX" below.

  64-bit Perl on HP-UX
     Beginning with HP-UX 11.00, programs compiled under HP-UX
     can take advantage of the LP64 programming environment (LP64
     means Longs and Pointers are 64 bits wide), in which scalar
     variables will be able to hold numbers larger than 2^32 with
     complete precision.  Perl has proven to be consistent and
     reliable in 64bit mode since 5.8.1 on all HP-UX 11.xx.

     As of the date of this document, Perl is fully 64-bit
     compliant on HP-UX 11.00 and up for both cc- and gcc builds.
     If you are about to build a 64-bit perl with GNU gcc, please
     read the gcc section carefully.

     Should a user have the need for compiling Perl in the LP64
     environment, use the -Duse64bitall flag to Configure.  This
     will force Perl to be compiled in a pure LP64 environment
     (with the +DD64 flag for HP C-ANSI-C, with no additional
     options for GNU gcc 64-bit on PA-RISC, and with -mlp64 for
     GNU gcc on Itanium).  If you want to compile Perl using gcc,
     you will have to get a version of the compiler that supports
     64-bit operations.)

     You can also use the -Duse64bitint flag to Configure.
     Although there are some minor differences between compiling
     Perl with this flag versus the -Duse64bitall flag, they

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     should not be noticeable from a Perl user's perspective.
     When configuring -Duse64bitint using a 64bit gcc on a pa-
     risc architecture, -Duse64bitint is silently promoted to

     In both cases, it is strongly recommended that you use these
     flags when you run Configure.  If you do not use do this,
     but later answer the questions about 64-bit numbers when
     Configure asks you, you may get a configuration that cannot
     be compiled, or that does not function as expected.

  Oracle on HP-UX
     Using perl to connect to Oracle databases through DBI and
     DBD::Oracle has caused a lot of people many headaches. Read
     README.hpux in the DBD::Oracle for much more information.
     The reason to mention it here is that Oracle requires a perl
     built with libcl and libpthread, the latter even when perl
     is build without threads. Building perl using all defaults,
     but still enabling to build DBD::Oracle later on can be
     achieved using

       Configure -A prepend:libswanted='cl pthread ' ...

     Do not forget the space before the trailing quote.

     Also note that this does not (yet) work with all
     configurations, it is known to fail with 64-bit versions of

  GDBM and Threads on HP-UX
     If you attempt to compile Perl with (POSIX) threads on an
     11.X system and also link in the GDBM library, then Perl
     will immediately core dump when it starts up.  The only
     workaround at this point is to relink the GDBM library under
     11.X, then relink it into Perl.

     the error might show something like:

     Pthread internal error: message: __libc_reinit() failed,
     file: ../pthreads/pthread.c, line: 1096 Return Pointer is
     0xc082bf33 sh: 5345 Quit(coredump)

     and Configure will give up.

  NFS filesystems and utime(2) on HP-UX
     If you are compiling Perl on a remotely-mounted NFS
     filesystem, the test io/fs.t may fail on test #18.  This
     appears to be a bug in HP-UX and no fix is currently

  HP-UX Kernel Parameters (maxdsiz) for Compiling Perl
     By default, HP-UX comes configured with a maximum data

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     segment size of 64MB.  This is too small to correctly
     compile Perl with the maximum optimization levels.  You can
     increase the size of the maxdsiz kernel parameter through
     the use of SAM.

     When using the GUI version of SAM, click on the Kernel
     Configuration icon, then the Configurable Parameters icon.
     Scroll down and select the maxdsiz line.  From the Actions
     menu, select the Modify Configurable Parameter item.  Insert
     the new formula into the Formula/Value box.  Then follow the
     instructions to rebuild your kernel and reboot your system.

     In general, a value of 256MB (or "256*1024*1024") is
     sufficient for Perl to compile at maximum optimization.

nss_delete core dump from op/pwent or op/grent
     You may get a bus error core dump from the op/pwent or
     op/grent tests. If compiled with -g you will see a stack
     trace much like the following:

       #0  0xc004216c in  () from /usr/lib/libc.2
       #1  0xc00d7550 in __nss_src_state_destr () from /usr/lib/libc.2
       #2  0xc00d7768 in __nss_src_state_destr () from /usr/lib/libc.2
       #3  0xc00d78a8 in nss_delete () from /usr/lib/libc.2
       #4  0xc01126d8 in endpwent () from /usr/lib/libc.2
       #5  0xd1950 in Perl_pp_epwent () from ./perl
       #6  0x94d3c in Perl_runops_standard () from ./perl
       #7  0x23728 in S_run_body () from ./perl
       #8  0x23428 in perl_run () from ./perl
       #9  0x2005c in main () from ./perl

     The key here is the "nss_delete" call.  One workaround for
     this bug seems to be to create add to the file
     /etc/nsswitch.conf (at least) the following lines

       group: files
       passwd: files

     Whether you are using NIS does not matter.  Amazingly
     enough, the same bug also affects Solaris.

     HP-UX 11 Y2K patch "Y2K-1100 B.11.00.B0125 HP-UX Core OS
     Year 2000 Patch Bundle" has been reported to break the io/fs
     test #18 which tests whether utime() can change timestamps.
     The Y2K patch seems to break utime() so that over NFS the
     timestamps do not get changed (on local filesystems utime()
     still works). This has probably been fixed on your system by

     H.Merijn Brand <> Jeff Okamoto

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     With much assistance regarding shared libraries from Marc

     Version 0.8.3: 2008-06-24

     See attributes(5) for descriptions of the following

     |Availability   | runtime/perl-512 |
     |Stability      | Uncommitted      |
     This software was built from source available at  The original
     community source was downloaded from

     Further information about this software can be found on the
     open source community website at

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