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PERLHPUX(1)	       Perl Programmers	Reference Guide		   PERLHPUX(1)

NAME
       perlhpux	- Perl version 5 on Hewlett-Packard Unix (HP-UX) systems

DESCRIPTION
       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.

       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.	 Pre-installed HP-UX systems now have more
       recent versions of Perl and the updated modules.

       The official (threaded) builds from HP, as they are shipped on the
       Application DVD/CD's are	available on
       <http://www.software.hp.com/portal/swdepot/displayProductInfo.do?productNumber=PERL>
       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

       To see what is installed	on your	system:

	 # swlist -R perl
	 # perl			   E.5.8.8.J  Perl Programming Language
	 # perl.Perl5-32	   E.5.8.8.J  32-bit Perl Programming Language
					      with Extensions
	   perl.Perl5-32.PERL-MAN  E.5.8.8.J  32-bit Perl Man Pages for	IA
	   perl.Perl5-32.PERL-RUN  E.5.8.8.J  32-bit Perl Binaries for IA
	 # perl.Perl5-64	   E.5.8.8.J  64-bit Perl Programming Language
					      with Extensions
	   perl.Perl5-64.PERL-MAN  E.5.8.8.J  64-bit Perl Man Pages for	IA
	   perl.Perl5-64.PERL-RUN  E.5.8.8.J  64-bit Perl Binaries for IA

   Using perl from HP's	porting	centre
       HP porting centre tries to keep up with customer	demand and release
       updates from the	Open Source community. Having precompiled Perl
       binaries	available is obvious, though "up-to-date" is something
       relative. At the	moment of writing perl-5.10.1 and 5.28.0 were
       available.

       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.

       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 <http://hpux.connect.org.uk/>	The
       port currently available	is built with GNU gcc. As porting modern GNU
       gcc is extremely	hard on	HP-UX, they are	stuck at version gcc-4.2.3.

   Other prebuilt perl binaries
       To get more perl	depots for the whole range of HP-UX, visit H.Merijn
       Brand's site at <http://mirrors.develooper.com/hpux/#Perl>.  Carefully
       read the	notes to see if	the available versions suit your needs.

   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.

   PA-RISC
       The last	and final version of PA-RISC is	2.0, HP	no longer sells	any
       system with these CPU's.

       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	chipset. Even though PA-RISC hardware is not sold anymore, a
       lot of machines still running on	these CPU's can	be found in the	wild.

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

       HP PA-RISC systems are usually referred to with model description "HP
       9000".  The last	CPU in this series is the PA-8900.  Support for	PA-
       RISC architectured machines officially ended as shown in	the following
       table:

	  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	     |
	+--------+----------------+----------------+-----------------+

       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
	 9000/800/L1000-44
	 # grep	L1000-44 /usr/sam/lib/mo/sched.models
	 L1000-44	 2.0	 PA8500

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

       The current naming convention is:

	 aadddd
	 ||||`+- 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

   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 used.

       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.

   Itanium Processor Family (IPF) and HP-UX
       HP-UX also runs on the newer Itanium processor.	This requires the use
       of HP-UX	version	11.23 (11i v2) or 11.31	(11i v3), 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 executable.

       HP Itanium 2 systems are	usually	referred 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 date):

	 BL60p,	BL860c,	BL870c,	BL890c,	cx2600,	cx2620,	rx1600,	rx1620,	rx2600,
	 rx2600hptc, rx2620, rx2660, rx2800, 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

   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 End-of-factory support
	 -------------	------	------------ ----------------------------------
	 10.20		32 bit	PA	     30-Jun-2003
	 11.00		32/64	PA	     31-Dec-2006
	 11.11	11i v1	32/64	PA	     31-Dec-2015
	 11.22	11i v2	   64	     IPF     30-Apr-2004
	 11.23	11i v2	   64	PA & IPF     31-Dec-2015
	 11.31	11i v3	   64	PA & IPF     31-Dec-2020 (PA) 31-Dec-2025 (IPF)

       See for the full	list of	hardware/OS support and	expected end-of-life
       <https://h20195.www2.hpe.com/V2/getpdf.aspx/4AA4-7673ENW.pdf>

   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 above).

       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 performed:

	 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 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 libdb.sl:

	 # 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 libdb-3.2.sl *.o
	 # mv libdb-3.2.sl /usr/local/lib
	 # rm *.o
	 # cd /usr/local/lib
	 # rm -f libdb.sl
	 # ln -s libdb-3.2.sl libdb.sl

	 # 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 present).

       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 config.sh
       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 keyword.

   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 (if you feel masochistic
       enough) from the	sources	(available from	e.g.
       <http://gcc.gnu.org/mirrors.html>) or fetch a prebuilt binary from the
       HP porting center at
       <http://hpux.connect.org.uk/hppd/cgi-bin/search?term=gcc&Search=Search>
       or from the DSPP	(you need to be	a member) at
       <http://h21007.www2.hp.com/portal/site/dspp/menuitem.863c3e4cbcdc3f3515b49c108973a801?ciid=2a08725cc2f02110725cc2f02110275d6e10RCRD&jumpid=reg_r1002_usen_c-001_title_r0001>
       (Browse through the list, because there are often multiple versions of
       the same	package	available).

       Most mentioned distributions are	depots.	H.Merijn Brand has made
       prebuilt	gcc binaries available on
       <http://mirrors.develooper.com/hpux/> and/or
       <http://www.cmve.net/~merijn/> for HP-UX	10.20 (only 32bit), HP-UX
       11.00, HP-UX 11.11 (HP-UX 11i v1), and HP-UX 11.23 (HP-UX 11i v2	PA-
       RISC) in	both 32- and 64-bit versions. For HP-UX	11.23 IPF and HP-UX
       11.31 IPF depots	are available too. The IPF versions do not need	two
       versions	of GNU gcc.

       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 it.)

       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,
	 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 (<http://mirrors.develooper.com/hpux/>).
       The use of PTH will be unsupported in perl-5.12 and up and is rather
       buggy in	5.11.x.

       If you are going	to use the HP DCE package, the library used for
       threading is /usr/lib/libcma.sl,	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 PHSS_23672

       reformatted output:

	 d3:/usr/lib 106 > what	libcma-*.1
	 libcma-00000.1:
	    HP DCE/9000	1.5		  Module: libcma.sl (Export)
					  Date:	Apr 29 1996 22:11:24
	 libcma-19739.1:
	    HP DCE/9000	1.5 PHSS_19739-40 Module: libcma.sl (Export)
					  Date:	Sep  4 1999 01:59:07
	 libcma-20608.1:
	    HP DCE/9000	1.5 PHSS_20608	  Module: libcma.1 (Export)
					  Date:	Dec  8 1999 18:41:23
	 libcma-23672.1:
	    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 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
       -Duse64bitall.

       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 GCC.

   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 available.

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

error: pasting ")" and "l" does	not give a valid preprocessing token
       There seems to be a broken system header	file in	HP-UX 11.00 that
       breaks perl building in 32bit mode with GNU gcc-4.x causing this	error.
       The same	file for HP-UX 11.11 (even though the file is older) does not
       show this failure, and has the correct definition, so the best fix is
       to patch	the header to match:

	--- /usr/include/inttypes.h  2001-04-20	18:42:14 +0200
	+++ /usr/include/inttypes.h  2000-11-14	09:00:00 +0200
	@@ -72,7 +72,7 @@
	 #define UINT32_C(__c)			 __CONCAT_U__(__c)
	 #else /* __LP64 */
	 #define INT32_C(__c)			 __CONCAT__(__c,l)
	-#define UINT32_C(__c)			 __CONCAT__(__CONCAT_U__(__c),l)
	+#define UINT32_C(__c)			 __CONCAT__(__c,ul)
	 #endif	/* __LP64 */

	 #define INT64_C(__c)			 __CONCAT_L__(__c,l)

Redeclaration of "sendpath" with a different storage class specifier
       The following compilation warnings may happen in	HP-UX releases earlier
       than 11.31 but are harmless:

	cc: "/usr/include/sys/socket.h", line 535: warning 562:
	   Redeclaration of "sendfile" with a different	storage	class
	   specifier: "sendfile" will have internal linkage.
	cc: "/usr/include/sys/socket.h", line 536: warning 562:
	   Redeclaration of "sendpath" with a different	storage	class
	   specifier: "sendpath" will have internal linkage.

       They seem to be caused by broken	system header files, and also other
       open source projects are	seeing them.  The following HP-UX patches
       should make the warnings	go away:

	 CR JAGae12001:	PHNE_27063
	 Warning 562 on	sys/socket.h due to redeclaration of prototypes

	 CR JAGae16787:
	 Warning 562 from socket.h sendpath/sendfile -D_FILEFFSET_BITS=64

	 CR JAGae73470 (11.23)
	 ER: Compiling socket.h	with cc	-D_FILEFFSET_BITS=64 warning 267/562

Miscellaneous
       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 now.

AUTHOR
       H.Merijn	Brand <h.m.brand@xs4all.nl> Jeff Okamoto <okamoto@corp.hp.com>

       With much assistance regarding shared libraries from Marc Sabatella.

perl v5.35.5			  2021-09-26			   PERLHPUX(1)

NAME | DESCRIPTION | nss_delete core dump from op/pwent or op/grent | error: pasting ")" and "l" does not give a valid preprocessing token | Redeclaration of "sendpath" with a different storage class specifier | Miscellaneous | AUTHOR

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