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PERLSOLARIS(1)			 Perl Programmers Reference Guide		   PERLSOLARIS(1)

NAME
       perlsolaris - Perl version 5 on Solaris systems

DESCRIPTION
       This document describes various features of Sun's Solaris operating system that will
       affect how Perl version 5 (hereafter just perl) is compiled and/or runs.  Some issues
       relating to the older SunOS 4.x are also discussed, though they may be out of date.

       For the most part, everything should just work.

       Starting with Solaris 8, perl5.00503 (or higher) is supplied with the operating system, so
       you might not even need to build a newer version of perl at all.  The Sun-supplied version
       is installed in /usr/perl5 with /usr/bin/perl pointing to /usr/perl5/bin/perl.  Do not
       disturb that installation unless you really know what you are doing.  If you remove the
       perl supplied with the OS, you will render some bits of your system inoperable.	If you
       wish to install a newer version of perl, install it under a different prefix from
       /usr/perl5.  Common prefixes to use are /usr/local and /opt/perl.

       You may wish to put your version of perl in the PATH of all users by changing the link
       /usr/bin/perl.  This is probably OK, as most perl scripts shipped with Solaris use an
       explicit path.  (There are a few exceptions, such as /usr/bin/rpm2cpio and
       /etc/rcm/scripts/README, but these are also sufficiently generic that the actual version
       of perl probably doesn't matter too much.)

       Solaris ships with a range of Solaris-specific modules.	If you choose to install your own
       version of perl you will find the source of many of these modules is available on CPAN
       under the Sun::Solaris:: namespace.

       Solaris may include two versions of perl, e.g. Solaris 9 includes both 5.005_03 and 5.6.1.
       This is to provide stability across Solaris releases, in cases where a later perl version
       has incompatibilities with the version included in the preceding Solaris release.  The
       default perl version will always be the most recent, and in general the old version will
       only be retained for one Solaris release.  Note also that the default perl will NOT be
       configured to search for modules in the older version, again due to
       compatibility/stability concerns.  As a consequence if you upgrade Solaris, you will have
       to rebuild/reinstall any additional CPAN modules that you installed for the previous
       Solaris version.  See the CPAN manpage under 'autobundle' for a quick way of doing this.

       As an interim measure, you may either change the #! line of your scripts to specifically
       refer to the old perl version, e.g. on Solaris 9 use #!/usr/perl5/5.00503/bin/perl to use
       the perl version that was the default for Solaris 8, or if you have a large number of
       scripts it may be more convenient to make the old version of perl the default on your
       system.	You can do this by changing the appropriate symlinks under /usr/perl5 as follows
       (example for Solaris 9):

	# cd /usr/perl5
	# rm bin man pod
	# ln -s ./5.00503/bin
	# ln -s ./5.00503/man
	# ln -s ./5.00503/lib/pod
	# rm /usr/bin/perl
	# ln -s ../perl5/5.00503/bin/perl /usr/bin/perl

       In both cases this should only be considered to be a temporary measure - you should
       upgrade to the later version of perl as soon as is practicable.

       Note also that the perl command-line utilities (e.g. perldoc) and any that are added by
       modules that you install will be under /usr/perl5/bin, so that directory should be added
       to your PATH.

   Solaris Version Numbers.
       For consistency with common usage, perl's Configure script performs some minor
       manipulations on the operating system name and version number as reported by uname.
       Here's a partial translation table:

		 Sun:			   perl's Configure:
	uname	 uname -r   Name	   osname     osvers
	SunOS	 4.1.3	   Solaris 1.1	   sunos      4.1.3
	SunOS	 5.6	   Solaris 2.6	   solaris    2.6
	SunOS	 5.8	   Solaris 8	   solaris    2.8
	SunOS	 5.9	   Solaris 9	   solaris    2.9
	SunOS	 5.10	   Solaris 10	   solaris    2.10

       The complete table can be found in the Sun Managers' FAQ
       <ftp://ftp.cs.toronto.edu/pub/jdd/sunmanagers/faq> under "9.1) Which Sun models run which
       versions of SunOS?".

RESOURCES
       There are many, many sources for Solaris information.  A few of the important ones for
       perl:

       Solaris FAQ
	   The Solaris FAQ is available at <http://www.science.uva.nl/pub/solaris/solaris2.html>.

	   The Sun Managers' FAQ is available at
	   <ftp://ftp.cs.toronto.edu/pub/jdd/sunmanagers/faq>

       Precompiled Binaries
	   Precompiled binaries, links to many sites, and much, much more are available at
	   <http://www.sunfreeware.com/> and <http://www.blastwave.org/>.

       Solaris Documentation
	   All Solaris documentation is available on-line at <http://docs.sun.com/>.

SETTING UP
   File Extraction Problems on Solaris.
       Be sure to use a tar program compiled under Solaris (not SunOS 4.x) to extract the
       perl-5.x.x.tar.gz file.	Do not use GNU tar compiled for SunOS4 on Solaris.  (GNU tar
       compiled for Solaris should be fine.)  When you run SunOS4 binaries on Solaris, the run-
       time system magically alters pathnames matching m#lib/locale# so that when tar tries to
       create lib/locale.pm, a file named lib/oldlocale.pm gets created instead.  If you found
       this advice too late and used a SunOS4-compiled tar anyway, you must find the incorrectly
       renamed file and move it back to lib/locale.pm.

   Compiler and Related Tools on Solaris.
       You must use an ANSI C compiler to build perl.  Perl can be compiled with either Sun's
       add-on C compiler or with gcc.  The C compiler that shipped with SunOS4 will not do.

       Include /usr/ccs/bin/ in your PATH.

       Several tools needed to build perl are located in /usr/ccs/bin/:  ar, as, ld, and make.
       Make sure that /usr/ccs/bin/ is in your PATH.

       On all the released versions of Solaris (8, 9 and 10) you need to make sure the following
       packages are installed (this info is extracted from the Solaris FAQ):

       for tools (sccs, lex, yacc, make, nm, truss, ld, as): SUNWbtool, SUNWsprot, SUNWtoo

       for libraries & headers: SUNWhea, SUNWarc, SUNWlibm, SUNWlibms, SUNWdfbh, SUNWcg6h,
       SUNWxwinc

       Additionaly, on Solaris 8 and 9 you also need:

       for 64 bit development: SUNWarcx, SUNWbtoox, SUNWdplx, SUNWscpux, SUNWsprox, SUNWtoox,
       SUNWlmsx, SUNWlmx, SUNWlibCx

       And only on Solaris 8 you also need:

       for libraries & headers: SUNWolinc

       If you are in doubt which package contains a file you are missing, try to find an
       installation that has that file. Then do a

	$ grep /my/missing/file /var/sadm/install/contents

       This will display a line like this:

       /usr/include/sys/errno.h f none 0644 root bin 7471 37605 956241356 SUNWhea

       The last item listed (SUNWhea in this example) is the package you need.

       Avoid /usr/ucb/cc.

       You don't need to have /usr/ucb/ in your PATH to build perl.  If you want /usr/ucb/ in
       your PATH anyway, make sure that /usr/ucb/ is NOT in your PATH before the directory
       containing the right C compiler.

       Sun's C Compiler

       If you use Sun's C compiler, make sure the correct directory (usually /opt/SUNWspro/bin/)
       is in your PATH (before /usr/ucb/).

       GCC

       If you use gcc, make sure your installation is recent and complete.  perl versions since
       5.6.0 build fine with gcc > 2.8.1 on Solaris >= 2.6.

       You must Configure perl with

	$ sh Configure -Dcc=gcc

       If you don't, you may experience strange build errors.

       If you have updated your Solaris version, you may also have to update your gcc.	For
       example, if you are running Solaris 2.6 and your gcc is installed under /usr/local, check
       in /usr/local/lib/gcc-lib and make sure you have the appropriate directory,
       sparc-sun-solaris2.6/ or i386-pc-solaris2.6/.  If gcc's directory is for a different
       version of Solaris than you are running, then you will need to rebuild gcc for your new
       version of Solaris.

       You can get a precompiled version of gcc from <http://www.sunfreeware.com/> or
       <http://www.blastwave.org/>. Make sure you pick up the package for your Solaris release.

       If you wish to use gcc to build add-on modules for use with the perl shipped with Solaris,
       you should use the Solaris::PerlGcc module which is available from CPAN.  The perl shipped
       with Solaris is configured and built with the Sun compilers, and the compiler
       configuration information stored in Config.pm is therefore only relevant to the Sun
       compilers.  The Solaris:PerlGcc module contains a replacement Config.pm that is correct
       for gcc - see the module for details.

       GNU as and GNU ld

       The following information applies to gcc version 2.  Volunteers to update it as
       appropriately for gcc version 3 would be appreciated.

       The versions of as and ld supplied with Solaris work fine for building perl.  There is
       normally no need to install the GNU versions to compile perl.

       If you decide to ignore this advice and use the GNU versions anyway, then be sure that
       they are relatively recent.  Versions newer than 2.7 are apparently new enough.	Older
       versions may have trouble with dynamic loading.

       If you wish to use GNU ld, then you need to pass it the -Wl,-E flag.  The
       hints/solaris_2.sh file tries to do this automatically by setting the following Configure
       variables:

	ccdlflags="$ccdlflags -Wl,-E"
	lddlflags="$lddlflags -Wl,-E -G"

       However, over the years, changes in gcc, GNU ld, and Solaris ld have made it difficult to
       automatically detect which ld ultimately gets called.  You may have to manually edit
       config.sh and add the -Wl,-E flags yourself, or else run Configure interactively and add
       the flags at the appropriate prompts.

       If your gcc is configured to use GNU as and ld but you want to use the Solaris ones
       instead to build perl, then you'll need to add -B/usr/ccs/bin/ to the gcc command line.
       One convenient way to do that is with

	$ sh Configure -Dcc='gcc -B/usr/ccs/bin/'

       Note that the trailing slash is required.  This will result in some harmless warnings as
       Configure is run:

	gcc: file path prefix `/usr/ccs/bin/' never used

       These messages may safely be ignored.  (Note that for a SunOS4 system, you must use
       -B/bin/ instead.)

       Alternatively, you can use the GCC_EXEC_PREFIX environment variable to ensure that Sun's
       as and ld are used.  Consult your gcc documentation for further information on the -B
       option and the GCC_EXEC_PREFIX variable.

       Sun and GNU make

       The make under /usr/ccs/bin works fine for building perl.  If you have the Sun C
       compilers, you will also have a parallel version of make (dmake).  This works fine to
       build perl, but can sometimes cause problems when running 'make test' due to
       underspecified dependencies between the different test harness files.  The same problem
       can also affect the building of some add-on modules, so in those cases either specify '-m
       serial' on the dmake command line, or use /usr/ccs/bin/make instead.  If you wish to use
       GNU make, be sure that the set-group-id bit is not set.	If it is, then arrange your PATH
       so that /usr/ccs/bin/make is before GNU make or else have the system administrator disable
       the set-group-id bit on GNU make.

       Avoid libucb.

       Solaris provides some BSD-compatibility functions in /usr/ucblib/libucb.a.  Perl will not
       build and run correctly if linked against -lucb since it contains routines that are
       incompatible with the standard Solaris libc.  Normally this is not a problem since the
       solaris hints file prevents Configure from even looking in /usr/ucblib for libraries, and
       also explicitly omits -lucb.

   Environment for Compiling perl on Solaris
       PATH

       Make sure your PATH includes the compiler (/opt/SUNWspro/bin/ if you're using Sun's
       compiler) as well as /usr/ccs/bin/ to pick up the other development tools (such as make,
       ar, as, and ld).  Make sure your path either doesn't include /usr/ucb or that it includes
       it after the compiler and compiler tools and other standard Solaris directories.  You
       definitely don't want /usr/ucb/cc.

       LD_LIBRARY_PATH

       If you have the LD_LIBRARY_PATH environment variable set, be sure that it does NOT include
       /lib or /usr/lib.  If you will be building extensions that call third-party shared
       libraries (e.g. Berkeley DB) then make sure that your LD_LIBRARY_PATH environment variable
       includes the directory with that library (e.g. /usr/local/lib).

       If you get an error message

	dlopen: stub interception failed

       it is probably because your LD_LIBRARY_PATH environment variable includes a directory
       which is a symlink to /usr/lib (such as /lib).  The reason this causes a problem is quite
       subtle.	The file libdl.so.1.0 actually *only* contains functions which generate 'stub
       interception failed' errors!  The runtime linker intercepts links to
       "/usr/lib/libdl.so.1.0" and links in internal implementations of those functions instead.
       [Thanks to Tim Bunce for this explanation.]

RUN CONFIGURE.
       See the INSTALL file for general information regarding Configure.  Only Solaris-specific
       issues are discussed here.  Usually, the defaults should be fine.

   64-bit perl on Solaris.
       See the INSTALL file for general information regarding 64-bit compiles.	In general, the
       defaults should be fine for most people.

       By default, perl-5.6.0 (or later) is compiled as a 32-bit application with largefile and
       long-long support.

       General 32-bit vs. 64-bit issues.

       Solaris 7 and above will run in either 32 bit or 64 bit mode on SPARC CPUs, via a reboot.
       You can build 64 bit apps whilst running 32 bit mode and vice-versa. 32 bit apps will run
       under Solaris running in either 32 or 64 bit mode.  64 bit apps require Solaris to be
       running 64 bit mode.

       Existing 32 bit apps are properly known as LP32, i.e. Longs and Pointers are 32 bit.
       64-bit apps are more properly known as LP64.  The discriminating feature of a LP64 bit app
       is its ability to utilise a 64-bit address space.  It is perfectly possible to have a LP32
       bit app that supports both 64-bit integers (long long) and largefiles (> 2GB), and this is
       the default for perl-5.6.0.

       For a more complete explanation of 64-bit issues, see the "Solaris 64-bit Developer's
       Guide" at <http://docs.sun.com/>

       You can detect the OS mode using "isainfo -v", e.g.

	$ isainfo -v   # Ultra 30 in 64 bit mode
	64-bit sparcv9 applications
	32-bit sparc applications

       By default, perl will be compiled as a 32-bit application.  Unless you want to allocate
       more than ~ 4GB of memory inside perl, or unless you need more than 255 open file
       descriptors, you probably don't need perl to be a 64-bit app.

       Large File Support

       For Solaris 2.6 and onwards, there are two different ways for 32-bit applications to
       manipulate large files (files whose size is > 2GByte).  (A 64-bit application
       automatically has largefile support built in by default.)

       First is the "transitional compilation environment", described in lfcompile64(5).
       According to the man page,

	The transitional compilation  environment  exports  all  the
	explicit 64-bit functions (xxx64()) and types in addition to
	all the regular functions (xxx()) and types. Both xxx()  and
	xxx64()  functions  are  available to the program source.  A
	32-bit application must use the xxx64() functions in  order
	to  access  large  files.  See the lf64(5) manual page for a
	complete listing of the 64-bit transitional interfaces.

       The transitional compilation environment is obtained with the following compiler and
       linker flags:

	getconf LFS64_CFLAGS	    -D_LARGEFILE64_SOURCE
	getconf LFS64_LDFLAG	    # nothing special needed
	getconf LFS64_LIBS	    # nothing special needed

       Second is the "large file compilation environment", described in lfcompile(5).  According
       to the man page,

	Each interface named xxx() that needs to access 64-bit entities
	to  access  large  files maps to a xxx64() call in the
	resulting binary. All relevant data types are defined to  be
	of correct size (for example, off_t has a typedef definition
	for a 64-bit entity).

	An application compiled in this environment is able  to  use
	the  xxx()  source interfaces to access both large and small
	files, rather than having to explicitly utilize the  transitional
	xxx64()  interface  calls to access large files.

       Two exceptions are fseek() and ftell().	32-bit applications should use fseeko(3C) and
       ftello(3C).  These will get automatically mapped to fseeko64() and ftello64().

       The large file compilation environment is obtained with

	getconf LFS_CFLAGS	-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
	getconf LFS_LDFLAGS	# nothing special needed
	getconf LFS_LIBS	# nothing special needed

       By default, perl uses the large file compilation environment and relies on Solaris to do
       the underlying mapping of interfaces.

       Building an LP64 perl

       To compile a 64-bit application on an UltraSparc with a recent Sun Compiler, you need to
       use the flag "-xarch=v9".  getconf(1) will tell you this, e.g.

	$ getconf -a | grep v9
	XBS5_LP64_OFF64_CFLAGS: 	-xarch=v9
	XBS5_LP64_OFF64_LDFLAGS:	-xarch=v9
	XBS5_LP64_OFF64_LINTFLAGS:	-xarch=v9
	XBS5_LPBIG_OFFBIG_CFLAGS:	-xarch=v9
	XBS5_LPBIG_OFFBIG_LDFLAGS:	-xarch=v9
	XBS5_LPBIG_OFFBIG_LINTFLAGS:	-xarch=v9
	_XBS5_LP64_OFF64_CFLAGS:	-xarch=v9
	_XBS5_LP64_OFF64_LDFLAGS:	-xarch=v9
	_XBS5_LP64_OFF64_LINTFLAGS:	-xarch=v9
	_XBS5_LPBIG_OFFBIG_CFLAGS:	-xarch=v9
	_XBS5_LPBIG_OFFBIG_LDFLAGS:	-xarch=v9
	_XBS5_LPBIG_OFFBIG_LINTFLAGS:	-xarch=v9

       This flag is supported in Sun WorkShop Compilers 5.0 and onwards (now marketed under the
       name Forte) when used on Solaris 7 or later on UltraSparc systems.

       If you are using gcc, you would need to use -mcpu=v9 -m64 instead.  This option is not yet
       supported as of gcc 2.95.2; from install/SPECIFIC in that release:

	GCC version 2.95 is not able to compile code correctly for sparc64
	targets. Users of the Linux kernel, at least, can use the sparc32
	program to start up a new shell invocation with an environment that
	causes configure to recognize (via uname -a) the system as sparc-*-*
	instead.

       All this should be handled automatically by the hints file, if requested.

       Long Doubles.

       As of 5.8.1, long doubles are working if you use the Sun compilers (needed for additional
       math routines not included in libm).

   Threads in perl on Solaris.
       It is possible to build a threaded version of perl on Solaris.  The entire perl thread
       implementation is still experimental, however, so beware.

   Malloc Issues with perl on Solaris.
       Starting from perl 5.7.1 perl uses the Solaris malloc, since the perl malloc breaks when
       dealing with more than 2GB of memory, and the Solaris malloc also seems to be faster.

       If you for some reason (such as binary backward compatibility) really need to use perl's
       malloc, you can rebuild perl from the sources and Configure the build with

	$ sh Configure -Dusemymalloc

       You should not use perl's malloc if you are building with gcc.  There are reports of core
       dumps, especially in the PDL module.  The problem appears to go away under -DDEBUGGING, so
       it has been difficult to track down.  Sun's compiler appears to be okay with or without
       perl's malloc. [XXX further investigation is needed here.]

MAKE PROBLEMS.
       Dynamic Loading Problems With GNU as and GNU ld
	   If you have problems with dynamic loading using gcc on SunOS or Solaris, and you are
	   using GNU as and GNU ld, see the section "GNU as and GNU ld" above.

       ld.so.1: ./perl: fatal: relocation error:
	   If you get this message on SunOS or Solaris, and you're using gcc, it's probably the
	   GNU as or GNU ld problem in the previous item "GNU as and GNU ld".

       dlopen: stub interception failed
	   The primary cause of the 'dlopen: stub interception failed' message is that the
	   LD_LIBRARY_PATH environment variable includes a directory which is a symlink to
	   /usr/lib (such as /lib).  See "LD_LIBRARY_PATH" above.

       #error "No DATAMODEL_NATIVE specified"
	   This is a common error when trying to build perl on Solaris 2.6 with a gcc
	   installation from Solaris 2.5 or 2.5.1.  The Solaris header files changed, so you need
	   to update your gcc installation.  You can either rerun the fixincludes script from gcc
	   or take the opportunity to update your gcc installation.

       sh: ar: not found
	   This is a message from your shell telling you that the command 'ar' was not found.
	   You need to check your PATH environment variable to make sure that it includes the
	   directory with the 'ar' command.  This is a common problem on Solaris, where 'ar' is
	   in the /usr/ccs/bin/ directory.

MAKE TEST
   op/stat.t test 4 in Solaris
       op/stat.t test 4 may fail if you are on a tmpfs of some sort.  Building in /tmp sometimes
       shows this behavior.  The test suite detects if you are building in /tmp, but it may not
       be able to catch all tmpfs situations.

   nss_delete core dump from op/pwent or op/grent
       See "nss_delete core dump from op/pwent or op/grent" in perlhpux.

PREBUILT BINARIES OF PERL FOR SOLARIS.
       You can pick up prebuilt binaries for Solaris from <http://www.sunfreeware.com/>,
       <http://www.blastwave.org>, ActiveState <http://www.activestate.com/>, and
       <http://www.perl.com/> under the Binaries list at the top of the page.  There are probably
       other sources as well.  Please note that these sites are under the control of their
       respective owners, not the perl developers.

RUNTIME ISSUES FOR PERL ON SOLARIS.
   Limits on Numbers of Open Files on Solaris.
       The stdio(3C) manpage notes that for LP32 applications, only 255 files may be opened using
       fopen(), and only file descriptors 0 through 255 can be used in a stream.  Since perl
       calls open() and then fdopen(3C) with the resulting file descriptor, perl is limited to
       255 simultaneous open files, even if sysopen() is used.	If this proves to be an
       insurmountable problem, you can compile perl as a LP64 application, see "Building an LP64
       perl" for details.  Note also that the default resource limit for open file descriptors on
       Solaris is 255, so you will have to modify your ulimit or rctl (Solaris 9 onwards)
       appropriately.

SOLARIS-SPECIFIC MODULES.
       See the modules under the Solaris:: and Sun::Solaris namespaces on CPAN, see
       http://www.cpan.org/modules/by-module/Solaris/ <http://www.cpan.org/modules/by-
       module/Solaris/> and http://www.cpan.org/modules/by-module/Sun/
       <http://www.cpan.org/modules/by-module/Sun/>.

SOLARIS-SPECIFIC PROBLEMS WITH MODULES.
   Proc::ProcessTable on Solaris
       Proc::ProcessTable does not compile on Solaris with perl5.6.0 and higher if you have
       LARGEFILES defined.  Since largefile support is the default in 5.6.0 and later, you have
       to take special steps to use this module.

       The problem is that various structures visible via procfs use off_t, and if you compile
       with largefile support these change from 32 bits to 64 bits.  Thus what you get back from
       procfs doesn't match up with the structures in perl, resulting in garbage.  See proc(4)
       for further discussion.

       A fix for Proc::ProcessTable is to edit Makefile to explicitly remove the largefile flags
       from the ones MakeMaker picks up from Config.pm.  This will result in Proc::ProcessTable
       being built under the correct environment.  Everything should then be OK as long as
       Proc::ProcessTable doesn't try to share off_t's with the rest of perl, or if it does they
       should be explicitly specified as off64_t.

   BSD::Resource on Solaris
       BSD::Resource versions earlier than 1.09 do not compile on Solaris with perl 5.6.0 and
       higher, for the same reasons as Proc::ProcessTable.  BSD::Resource versions starting from
       1.09 have a workaround for the problem.

   Net::SSLeay on Solaris
       Net::SSLeay requires a /dev/urandom to be present. This device is available from Solaris 9
       onwards.  For earlier Solaris versions you can either get the package SUNWski (packaged
       with several Sun software products, for example the Sun WebServer, which is part of the
       Solaris Server Intranet Extension, or the Sun Directory Services, part of Solaris for
       ISPs) or download the ANDIrand package from <http://www.cosy.sbg.ac.at/~andi/>. If you use
       SUNWski, make a symbolic link /dev/urandom pointing to /dev/random.  For more details, see
       Document ID27606 entitled "Differing /dev/random support requirements within Solaris[TM]
       Operating Environments", available at <http://sunsolve.sun.com> .

       It may be possible to use the Entropy Gathering Daemon (written in Perl!), available from
       <http://www.lothar.com/tech/crypto/>.

SunOS 4.x
       In SunOS 4.x you most probably want to use the SunOS ld, /usr/bin/ld, since the more
       recent versions of GNU ld (like 2.13) do not seem to work for building Perl anymore.  When
       linking the extensions, the GNU ld gets very unhappy and spews a lot of errors like this

	 ... relocation truncated to fit: BASE13 ...

       and dies.  Therefore the SunOS 4.1 hints file explicitly sets the ld to be /usr/bin/ld.

       As of Perl 5.8.1 the dynamic loading of libraries (DynaLoader, XSLoader) also seems to
       have become broken in in SunOS 4.x.  Therefore the default is to build Perl statically.

       Running the test suite in SunOS 4.1 is a bit tricky since the lib/Tie/File/t/09_gen_rs
       test hangs (subtest #51, FWIW) for some unknown reason.	Just stop the test and kill that
       particular Perl process.

       There are various other failures, that as of SunOS 4.1.4 and gcc 3.2.2 look a lot like gcc
       bugs.  Many of the failures happen in the Encode tests, where for example when the test
       expects "0" you get "&#48;" which should after a little squinting look very odd indeed.
       Another example is earlier in t/run/fresh_perl where chr(0xff) is expected but the test
       fails because the result is chr(0xff).  Exactly.

       This is the "make test" result from the said combination:

	 Failed 27 test scripts out of 745, 96.38% okay.

       Running the "harness" is painful because of the many failing Unicode-related tests will
       output megabytes of failure messages, but if one patiently waits, one gets these results:

	Failed Test			Stat Wstat Total Fail  Failed  List of Failed
	-----------------------------------------------------------------------------
	...
	../ext/Encode/t/at-cn.t 	   4  1024    29    4  13.79%  14-17
	../ext/Encode/t/at-tw.t 	  10  2560    17   10  58.82%  2 4 6 8 10 12
								       14-17
	../ext/Encode/t/enc_data.t	  29  7424    ??   ??	    %  ??
	../ext/Encode/t/enc_eucjp.t	  29  7424    ??   ??	    %  ??
	../ext/Encode/t/enc_module.t	  29  7424    ??   ??	    %  ??
	../ext/Encode/t/encoding.t	  29  7424    ??   ??	    %  ??
	../ext/Encode/t/grow.t		  12  3072    24   12  50.00%  2 4 6 8 10 12 14
								       16 18 20 22 24
	 Failed Test			 Stat Wstat Total Fail	Failed	List of Failed
	------------------------------------------------------------------------------
	../ext/Encode/t/guess.t 	 255 65280    29   40 137.93%  10-29
	../ext/Encode/t/jperl.t 	  29  7424    15   30 200.00%  1-15
	../ext/Encode/t/mime-header.t	   2   512    10    2  20.00%  2-3
	../ext/Encode/t/perlio.t	  22  5632    38   22  57.89%  1-4 9-16 19-20
								       23-24 27-32
	../ext/List/Util/t/shuffle.t	   0   139    ??   ??	    %  ??
	../ext/PerlIO/t/encoding.t		      14    1	7.14%  11
	../ext/PerlIO/t/fallback.t		       9    2  22.22%  3 5
	../ext/Socket/t/socketpair.t	   0	 2    45   70 155.56%  11-45
	../lib/CPAN/t/vcmp.t			      30    1	3.33%  25
	../lib/Tie/File/t/09_gen_rs.t	   0	15    ??   ??	    %  ??
	../lib/Unicode/Collate/t/test.t 	     199   30  15.08%  7 26-27 71-75
								       81-88 95 101
								       103-104 106 108-
								       109 122 124 161
								       169-172
	../lib/sort.t			   0   139   119   26  21.85%  107-119
	op/alarm.t				       4    1  25.00%  4
	op/utfhash.t				      97    1	1.03%  31
	run/fresh_perl.t			      91    1	1.10%  32
	uni/tr_7jis.t				      ??   ??	    %  ??
	uni/tr_eucjp.t			  29  7424     6   12 200.00%  1-6
	uni/tr_sjis.t			  29  7424     6   12 200.00%  1-6
	56 tests and 467 subtests skipped.
	Failed 27/811 test scripts, 96.67% okay. 1383/75399 subtests failed, 98.17% okay.

       The alarm() test failure is caused by system() apparently blocking alarm().  That is
       probably a libc bug, and given that SunOS 4.x has been end-of-lifed years ago, don't hold
       your breath for a fix.  In addition to that, don't try anything too Unicode-y, especially
       with Encode, and you should be fine in SunOS 4.x.

AUTHOR
       The original was written by Andy Dougherty doughera@lafayette.edu drawing heavily on
       advice from Alan Burlison, Nick Ing-Simmons, Tim Bunce, and many other Solaris users over
       the years.

       Please report any errors, updates, or suggestions to perlbug@perl.org.

perl v5.16.3				    2013-03-04				   PERLSOLARIS(1)
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