Ruby on HP-UX

[Alexey Verkhovsky]

If I remember correctly, the list of essential libraries is something
like (in no particular order):

- zlib
- libgdbm
- libiconv
- ncurses
- readline
- openssl

About a year ago, the major problems for me in building Ruiby on HP-UX
was libpthread.

Reason: an HPUX process that wants to use libraries compiled as
multithreaded (case in hand: the Oracle DB driver), must be compiled as
multithreaded itself. Unfortunately, Ruby didn't work when compiled in
multi-threaded mode on HP-UX. It did compile fine and dandy without
libpthread, but then I couldn't use it for half the tasks I needed it to
perform.

Alex

 

[MenTaLguY]

I'll work on at least openssl, since it is the squeaky wheel at the mom= ent.
I'm having issues with it's makefile at the moment. Incidentally, why = are
you refering to libcrypto, when the error is related to crypto? Is cry= pto
somehow contained in the libcrypto file?

Yes. The way libraries work on unix, if you specify -lcrypto, the linker=
looks for a libcrypto.sl or a libcrypto.a.

Incidentally, since you may not be aware -- in general HP-UX's tools don'=
t know to look in /usr/local by default. If you've got required librarie=
s, you'll need to have the following environment variables set at build-t=
ime:

export CPPFLAGS=3D"-I/usr/local/include"
export LDFLAGS=3D"-L/usr/local/lib -Wl,+b -Wl,/usr/local/lib"

This holds for building software on HP-UX in general. The -I/usr/local/i=
nclude is so that it can find the header files at compile time, the -L/us=
r/local/lib is so it can find the library files at link time, and the -Wl=
,+b -Wl,/usr/local/lib is so that the linked program can find the librari=
es again at runtime. This last one is sort of a peculiarity of HP-UX.

Unfortuantely openssl's build system is weird, so I can't promise that it=
respects those environment variables. It's been a while since I've done=
it myself. You might have to do some makefile hacking after running ./C=
onfigure.
=20

For example, when you talk about "disable ipv6 and wide-getaddrinfo so = it uses Ruby's
built-in getaddrinfo() instead" I ask the question "how?" I don't beli= eve I have IPv6
enabled, so maybe I'm good on this step.

Those refer to commandline options to pass when running Ruby's configure =
script:

--disable-ipv6 --disable-wide-getaddrinfo

Those _should_ get passed down to ext/socket/extconf.rb; if it turns out =
that name resolution still doesn't work from Ruby, you may have to rerun =
ext/socket/extconf.rb explicitly with those options, run make, and replac=
e the broken installed socket.sl manually.

[ For what it's worth, on most platforms Ruby's build system can detect t=
he absence of a working getaddrinfo() automatically, but HP-UX's getaddri=
nfo() implements just enough to fool the tests into thinking it's usable.=
]

how do I make sure of this? [that shared libraries get built]

This will vary from library to library; the desired end result is that yo=
u have an .sl version of the library installed.

For libraries with a standard autoconf-based build system, that usually m=
eans passing --enable-shared as an argument to ./configure. To achieve t=
his for openssl, however, this means configuring the library with somethi=
ng like:

./Configure hpux-parisc shared

(hopefully I'm remembering the platform string correctly)

-mental

 

[Tim Nordloh]

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Thanks, Mental, that helped immensely. I'm learning a lot.

Ok, openssl was a pain to compile but luckily the instructions at the HP
Software and Porting archive told me what I needed to know, namely to go
into one of the makefiles and replace the shared library extension
".so" with ".sl". Once I did that, I got much closer: only 'openssl' and
'zlib' remain uncommented in ext/Setup. Not too shabby. Of course, it's
all for naught at this point, for I continue to receive the same error from
yaml.rb when I try and run 'ri'.

root@atcito01 [/home/tnordloh/ruby/ruby-1.8.4]
# ri File
/usr/local/lib/ruby/1.8/yaml.rb:87: uninitialized constant
YAML::Syck::Resolver (NameError)
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_descriptions.rb:1
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_reader.rb:1
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_driver.rb:5
from /usr/local/bin/ri:43

I'm going to grab some lunch, get some real work done, and pick it up this
evening.

export CPPFLAGS=3D"-I/usr/local/include"
export LDFLAGS=3D"-L/usr/local/lib -Wl,+b -Wl,/usr/local/lib"

The above didn't make a difference for me, but since I had compiled openssl
at this point, simply adding -L"/usr/local/ssl/lib" to the LIBPATH in
relevant Makefiles seemed to do the trick. I'll go ahead and follow the
very first suggestion I got on this, and supply that path when I run the
/configure script....

For example, when you talk about "disable ipv6 and wide-getaddrinfo so i=

t
uses Ruby's

built-in getaddrinfo() instead" I ask the question "how?" I don't believ=

e
I have IPv6

enabled, so maybe I'm good on this step.

Those refer to commandline options to pass when running Ruby's configure
script:

--disable-ipv6 --disable-wide-getaddrinfo


got it, thanks.

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[Tim Nordloh]

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New steps:

1. install openssl(instructions on HP Software porting archive)
2. untar+gunzip ruby
3. run configure with these options
--with-openssl-dir=3D/usr/local/ssl/
--disable-ipv6
--disable-wide-getaddrinfo
4. Edit DLDFLAGS in Makefile, remove the extra -E flag there.
4. run "gmake all" in base ruby directory
5. run "gmake install-all"

By redoing the ./configure and including the --with-openssl-dir command, I
got openssl to compile, leaving iconv and zlib as the final victims. I
wonder which one YAML is relying on, causing my error. I'm going to guess
iconv and concentrate my efforts there, but if I'm wrong, someone chime in
and let me know

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[Tim Nordloh]

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Ok, I've had to install 2 libraries so far, do get all of the dynamic
linking to take. my new list of steps below reflect that change.

1. install openssl(instructions on HP Software porting archive)
2. install libiconv(configure, make and make all ran ok for me)
3. untar+gunzip ruby
3. run configure with these options
--with-openssl-dir=3D/usr/local/ssl/
--with-iconv-dir=3D/usr/local
--disable-ipv6
--disable-wide-getaddrinfo
4. Edit DLDFLAGS in Makefile, remove the extra -E flag there.
5. run "gmake all" in base ruby directory
6. run "gmake install-all"

None of this has actually done any good toward the source error:

$ ri File
/usr/local/lib/ruby/1.8/yaml.rb:87: uninitialized constant
YAML::Syck::Resolver (NameError)
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_descriptions.rb:1
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_reader.rb:1
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_driver.rb:5
from /usr/local/bin/ri:43


<sigh> ok, I have one library left to compile by hand, the zlib. That will
complete all basic libraries, and I'd bet at least one penny that it won't
help. So I guess I need to start asking about other reasons why this
constant isn't initialized. Anyone have any clue?

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[MenTaLguY]

None of this has actually done any good toward the source error:
=20
$ ri File
/usr/local/lib/ruby/1.8/yaml.rb:87: uninitialized constant
YAML::Syck::Resolver (NameError)
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_descriptions.rb:1
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_reader.rb:1
from /usr/local/lib/ruby/1.8/rdoc/ri/ri_driver.rb:5
from /usr/local/bin/ri:43

I'm puzzled by this one -- for whatever reason, syck isn't getting loaded=
I've not had this problem on HP-UX myself, and yaml.rb has a require '=
yaml/syck' at the top, so I don't know why you're not getting an error fr=
om rather than getting this far.

If you try:

ruby -r 'yaml/syck' -e 'p YAML::Syck::Resolver'

..what happens?

Also, this is 1.8.4, right?

-mental

 

[Tim Nordloh]

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I'm puzzled by this one -- for whatever reason, syck isn't getting loaded.
I've not had this problem on HP-UX myself, and yaml.rb has a require
'yaml/syck' at the top, so I don't know why you're not getting an error fro=
m
rather than getting this far.

Good point, and your saying it made me go check myself. Man, I hate it whe=
n
it turns out that the problem is my fault. I did have a problem like that
early on in the process, so I ended up copying the syck file one directory
higher. I went and deleted everything in the ruby installed library
directory, and suddenly it 'ri' started working.

Nothing better than looking like a moron to the entire Ruby community at
once, it saves time.

So my last set of steps works, but some of them are unnecessary. I do have
one little issue where I'm still manually editing the Makefile to remove th=
e
extra -E. Mental, do you have to do that too, or is there something I
should be tweaking in the ./configure command to make that not happen
anymore?

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[Simon Kröger]

Nothing better than looking like a moron to the entire Ruby community at
once, it saves time.

Rofl, don't worry too much. Most of us don't use HP-UX (like me) and
don't read this thread at all ... well ... most of the time.

If this does ease your pain: It will certainly make me feel a bit less
lost and lonely when hunting down linker errors or solving dynamic
binding riddles the next time.

So thanks for charing your experiments and insights.

cheers

Simon

 

[MenTaLguY]

So my last set of steps works, but some of them are unnecessary. I do
have one little issue where I'm still manually editing the Makefile to = remove
the extra -E...

I have the extra -E, but it doesn't cause problems. What version of gcc =
are you using, and are you using GNU ld or HP's ld? (I'm using the latte=
r, as grotty as it is...)

-mental

 

[Tim Nordloh]

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looks like gcc version 3.4.3, and HP's ld, version B.11.41

I have the extra -E, but it doesn't cause problems. What version of gcc
are you using, and are you using GNU ld or HP's ld? (I'm using the latte= r,
as grotty as it is...)

-mental

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[MenTaLguY]

looks like gcc version 3.4.3, and HP's ld, version B.11.41

Ok ... I've got gcc version 3.3.2, and HP's ld, version B.11.18.

I suspect it's the gcc version, though, since IIRC it's gcc that's compla=
ining about -E?

-mental

 

[Tim Nordloh]

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Yup, that's right. I might try upgrading to a more recent version, but tha=
t
isn't a major tweak to make.

I have a few dozen HP-UX boxes, and I don't have gcc installed on all of
them, so I suppose if I were really serious about this, I'd have to try to
build a depot that I can install across the environment, then send it to th=
e
porting archive once it is perfected . I don't even know enough about
building a depot to know how much work that would be but I suppose it would
involve capturing a list of all files ruby installed, as well as all of the
linking done by Ruby. I'll check the lab at work and see if there is a boo=
k
on how to do something like that, but at this point, if someone wants to
install it, I guess their best bet is to work their way through the
thread...

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[James Edward Gray II]

Yup, that's right. I might try upgrading to a more recent version,
but that
isn't a major tweak to make.

1.8.4 is the current version of Ruby.

James Edward Gray II