I need to build a 32-bit binary of a package that links against JVM on
what is otherwise a 64-bit install of SuSE 11.0. For all other
required libraries there are 32-bit development versions, but not for
Java.

Is there a way to install suse/i586/java-1_6_0-sun-1.6.0.u6-8.1.i586.rpm
alongsite suse/x86_64/java-1_6_0-sun-1.6.0.u6-8.1.x86_64.rpm?

I guess I can unpack the RPM and install the files, for example
through rpm2cpio. Would that work, and more importantly would it
work without getting into trouble with automatic updates, etc.?

Thanks --- Jan

Jan Wielemaker wrote:
> I need to build a 32-bit binary of a package that links against JVM on
> what is otherwise a 64-bit install of SuSE 11.0. For all other
> required libraries there are 32-bit development versions, but not for
> Java.
>
> Is there a way to install suse/i586/java-1_6_0-sun-1.6.0.u6-8.1.i586.rpm
> alongsite suse/x86_64/java-1_6_0-sun-1.6.0.u6-8.1.x86_64.rpm?
>
> I guess I can unpack the RPM and install the files, for example
> through rpm2cpio. Would that work, and more importantly would it
> work without getting into trouble with automatic updates, etc.?

AFAIK, Java is always 32-bit even on openSUSE x86-64. Sun never ported
it to 64-bit.

On 2008-07-16, Nikos Chantziaras <realnc@arcor.de> wrote:
> Jan Wielemaker wrote:
>> I need to build a 32-bit binary of a package that links against JVM on
>> what is otherwise a 64-bit install of SuSE 11.0. For all other
>> required libraries there are 32-bit development versions, but not for
>> Java.
>>
>> Is there a way to install suse/i586/java-1_6_0-sun-1.6.0.u6-8.1.i586.rpm
>> alongsite suse/x86_64/java-1_6_0-sun-1.6.0.u6-8.1.x86_64.rpm?
>>
>> I guess I can unpack the RPM and install the files, for example
>> through rpm2cpio. Would that work, and more importantly would it
>> work without getting into trouble with automatic updates, etc.?
>
> AFAIK, Java is always 32-bit even on openSUSE x86-64. Sun never ported
> it to 64-bit.

I guess your info is outdated:

gollem (~) 5_> file /usr/lib64/jvm/java-1.6.0-sun-1.6.0.u6/jre/lib/amd64/libjava.so
/usr/lib64/jvm/java-1.6.0-sun-1.6.0.u6/jre/lib/amd64/libjava.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, not stripped
gollem (~) 6_> rpm -qf /usr/lib64/jvm/java-1.6.0-sun-1.6.0.u6/jre/lib/amd64/libjava.so
java-1_6_0-sun-1.6.0.u6-8.1
gollem (~) 7_>

Cheers --- Jan

On Wed, 16 Jul 2008 14:59:28 +0000, Jan Wielemaker typed this message:

> On 2008-07-16, Nikos Chantziaras <realnc@arcor.de> wrote:
>> Jan Wielemaker wrote:
>>> I need to build a 32-bit binary of a package that links against JVM on
>>> what is otherwise a 64-bit install of SuSE 11.0. For all other
>>> required libraries there are 32-bit development versions, but not for
>>> Java.
>>>
>>> Is there a way to install
>>> suse/i586/java-1_6_0-sun-1.6.0.u6-8.1.i586.rpm alongsite
>>> suse/x86_64/java-1_6_0-sun-1.6.0.u6-8.1.x86_64.rpm?
>>>
>>> I guess I can unpack the RPM and install the files, for example
>>> through rpm2cpio. Would that work, and more importantly would it work
>>> without getting into trouble with automatic updates, etc.?
>>
>> AFAIK, Java is always 32-bit even on openSUSE x86-64. Sun never ported
>> it to 64-bit.
>
> I guess your info is outdated:
>
> gollem (~) 5_> file
> /usr/lib64/jvm/java-1.6.0-sun-1.6.0.u6/jre/lib/amd64/libjava.so
> /usr/lib64/jvm/java-1.6.0-sun-1.6.0.u6/jre/lib/amd64/libjava.so: ELF
> 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically
> linked, not stripped gollem (~) 6_> rpm -qf
> /usr/lib64/jvm/java-1.6.0-sun-1.6.0.u6/jre/lib/amd64/libjava.so
> java-1_6_0-sun-1.6.0.u6-8.1
> gollem (~) 7_>
>
> Cheers --- Jan

Generally, SuSe installs/updates both 32 and 64bit libraries. So, if you
need the java libraries use YaST or zypper to install the JAVA libraries
and resolve dependencies.

zypper search java

if needed
zypper install non-oss-java-32bit

On 2008-07-17, noi ance <noi@siam.com> wrote:
> On Wed, 16 Jul 2008 14:59:28 +0000, Jan Wielemaker typed this message:
>
>> On 2008-07-16, Nikos Chantziaras <realnc@arcor.de> wrote:
>>> Jan Wielemaker wrote:
>>>> I need to build a 32-bit binary of a package that links against JVM on
>>>> what is otherwise a 64-bit install of SuSE 11.0. For all other
>>>> required libraries there are 32-bit development versions, but not for
>>>> Java.
>>>>
>>>> Is there a way to install
>>>> suse/i586/java-1_6_0-sun-1.6.0.u6-8.1.i586.rpm alongsite
>>>> suse/x86_64/java-1_6_0-sun-1.6.0.u6-8.1.x86_64.rpm?
>>>>
>>>> I guess I can unpack the RPM and install the files, for example
>>>> through rpm2cpio. Would that work, and more importantly would it work
>>>> without getting into trouble with automatic updates, etc.?
>>>
>>> AFAIK, Java is always 32-bit even on openSUSE x86-64. Sun never ported
>>> it to 64-bit.
>>
>> I guess your info is outdated:
>>
>> gollem (~) 5_> file
>> /usr/lib64/jvm/java-1.6.0-sun-1.6.0.u6/jre/lib/amd64/libjava.so
>> /usr/lib64/jvm/java-1.6.0-sun-1.6.0.u6/jre/lib/amd64/libjava.so: ELF
>> 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically
>> linked, not stripped gollem (~) 6_> rpm -qf
>> /usr/lib64/jvm/java-1.6.0-sun-1.6.0.u6/jre/lib/amd64/libjava.so
>> java-1_6_0-sun-1.6.0.u6-8.1
>> gollem (~) 7_>
>>
>> Cheers --- Jan
>
> Generally, SuSe installs/updates both 32 and 64bit libraries. So, if you
> need the java libraries use YaST or zypper to install the JAVA libraries
> and resolve dependencies.
>
> zypper search java
>
> if needed
> zypper install non-oss-java-32bit

Hmmm.

gollem:/home/jan # zypper search java | grep 32
| devel_java-32bit | devel_java-32bit | pattern
| java-1_5_0-gcj-compat-32bit | JPackage Runti-> | package
| libreadline-java-32bit | Java Wrapper f-> | package
| non_oss_java-32bit | non_oss_java-3-> | pattern

Sofar, so good. Now it would be nice to know what this is going to do, so I typed

gollem:/home/jan # zypper info -t pattern devel_java-32bit
Reading installed packages...


Information for pattern devel_java-32bit:

Repository: openSUSE-11.0-Oss
Name: devel_java-32bit
Version: 11.0-110.3
Arch: x86_64
Vendor: SUSE LINUX Products GmbH, Nuernberg, Germany
Installed: No
Summary: devel_java-32bit
Description:

Contents: (empty)

Could be better :-( Then

gollem:/home/jan # zypper install -D -t pattern devel_java-32bit
Reading installed packages...

The following NEW pattern is going to be installed:
devel_java-32bit


No additional space will be used or freed after the operation.
Continue? [YES/no]:

That is getting weird. I guess it should use space!? No matter
what I enter on the prompt (return, y, Y, YES), it immediately
returns. Same without -D.

What do I miss? I also tried hard to find this pattern in the
YaST software management, but I can't find it.

Puzzled --- Jan

Jan Wielemaker wrote:
> Is there a way to install suse/i586/java-1_6_0-sun-1.6.0.u6-8.1.i586.rpm
> alongsite suse/x86_64/java-1_6_0-sun-1.6.0.u6-8.1.x86_64.rpm?

Not, it appears, using the RPMs.

On my x86_64 system:
chipotle:~ # rpm -qa|grep java
java-1_6_0-sun-devel-1.6.0.u6-8.1
java-1_6_0-sun-1.6.0.u6-8.1
chipotle:~ # rpm --install
/tmp/mnt/suse/i586/java-1_6_0-sun-1.6.0.u6-8.1.i586.rpm
package java-1_6_0-sun-1.6.0.u6-8.1 is already installed
chipotle:~ #

Even it if were possible, update-alternatives might not work well.

I suspect the path of least resistance is to install the i586 JRE/JDK
from Sun and separately maintain it.

On 2008-07-17, Gary Gapinski <usenet@garygapinski.com> wrote:
> Jan Wielemaker wrote:
>> Is there a way to install suse/i586/java-1_6_0-sun-1.6.0.u6-8.1.i586.rpm
>> alongsite suse/x86_64/java-1_6_0-sun-1.6.0.u6-8.1.x86_64.rpm?
>
> Not, it appears, using the RPMs.
>
> On my x86_64 system:
> chipotle:~ # rpm -qa|grep java
> java-1_6_0-sun-devel-1.6.0.u6-8.1
> java-1_6_0-sun-1.6.0.u6-8.1
> chipotle:~ # rpm --install
> /tmp/mnt/suse/i586/java-1_6_0-sun-1.6.0.u6-8.1.i586.rpm
> package java-1_6_0-sun-1.6.0.u6-8.1 is already installed
> chipotle:~ #

I have been there too :-)

> Even it if were possible, update-alternatives might not work well.
>
> I suspect the path of least resistance is to install the i586 JRE/JDK
> from Sun and separately maintain it.

The aim of this is to provide binary RPMs for i586 for SWI-Prolog
(http://www.swi-prolog.org) which includes a Java interface that can
be used on 32-bit systems. Except for Java there is no problem. If I
compile and link against the Sun binaries it still might not work if
the user only has java-1_6_0-sun-1.6.0.u6-8.1 for i586?

I know of course that I can run a copy of SuSE 32-bit in a virtual
machine, but I don't really like the burden of installing it and
keeping it up-to-date, just for a single missing library :-(

What I don't really get is what is so special about the -32bits
packages? Why is it not possible to install the i586 RPMs alongside
the 64-bit versions in general? They install in different directories
anyway.

Cheers --- Jan

Jan Wielemaker wrote:
> I know of course that I can run a copy of SuSE 32-bit in a virtual
> machine, but I don't really like the burden of installing it and
> keeping it up-to-date, just for a single missing library :-(


Perhaps the openSUSE Build Service (https://build.opensuse.org/) could
be used. I have not yet used it, so I'm unsure how easily 32- and 64-bit
packages might be maintained.


>
> What I don't really get is what is so special about the -32bits
> packages? Why is it not possible to install the i586 RPMs alongside
> the 64-bit versions in general? They install in different directories
> anyway.


I think it's just the packaging.

On 2008-07-17, Gary Gapinski <usenet@garygapinski.com> wrote:
> Jan Wielemaker wrote:
>> I know of course that I can run a copy of SuSE 32-bit in a virtual
>> machine, but I don't really like the burden of installing it and
>> keeping it up-to-date, just for a single missing library :-(
>
>
> Perhaps the openSUSE Build Service (https://build.opensuse.org/) could
> be used. I have not yet used it, so I'm unsure how easily 32- and 64-bit
> packages might be maintained.

That could indeed be an option (thanks, hadn't considered that yet),
though I prefer to keep it in my own hands as debugging trouble
locally is generally a lot easier and sometimes bugs are 32-bit
specific.

>> What I don't really get is what is so special about the -32bits
>> packages? Why is it not possible to install the i586 RPMs alongside
>> the 64-bit versions in general? They install in different directories
>> anyway.
>
> I think it's just the packaging.

Thats what I'm after. Can the package system be cheated ot better,
will there be a day this simply works and one can install any mixture
of i586 and AMD64 packages on the same system?

Of course, 32-bit versions for AMD64 of the Java packages are also a
solution :-) Some time ago it was very hard to get 64-bit Java
installed on a 64-bit machine, now it is hard to get the 32-bit
version :-(

Cheers --- Jan

On Thu, 17 Jul 2008 09:55:30 +0000, Jan Wielemaker typed this message:

> On 2008-07-17, noi ance <noi@siam.com> wrote:
>> On Wed, 16 Jul 2008 14:59:28 +0000, Jan Wielemaker typed this message:
>>
>>> On 2008-07-16, Nikos Chantziaras <realnc@arcor.de> wrote:
>>>> Jan Wielemaker wrote:
>>>>> I need to build a 32-bit binary of a package that links against JVM
>>>>> on what is otherwise a 64-bit install of SuSE 11.0. For all other
>>>>> required libraries there are 32-bit development versions, but not
>>>>> for Java.
>>>>>
>>>>> Is there a way to install
>>>>> suse/i586/java-1_6_0-sun-1.6.0.u6-8.1.i586.rpm alongsite
>>>>> suse/x86_64/java-1_6_0-sun-1.6.0.u6-8.1.x86_64.rpm?
>>>>>
>>>>> I guess I can unpack the RPM and install the files, for example
>>>>> through rpm2cpio. Would that work, and more importantly would it
>>>>> work without getting into trouble with automatic updates, etc.?
>>>>
>>>> AFAIK, Java is always 32-bit even on openSUSE x86-64. Sun never
>>>> ported it to 64-bit.
>>>
>>> I guess your info is outdated:
>>>
>>> gollem (~) 5_> file
>>> /usr/lib64/jvm/java-1.6.0-sun-1.6.0.u6/jre/lib/amd64/libjava.so
>>> /usr/lib64/jvm/java-1.6.0-sun-1.6.0.u6/jre/lib/amd64/libjava.so: ELF
>>> 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically
>>> linked, not stripped gollem (~) 6_> rpm -qf
>>> /usr/lib64/jvm/java-1.6.0-sun-1.6.0.u6/jre/lib/amd64/libjava.so
>>> java-1_6_0-sun-1.6.0.u6-8.1
>>> gollem (~) 7_>
>>>
>>> Cheers --- Jan
>>
>> Generally, SuSe installs/updates both 32 and 64bit libraries. So, if
>> you need the java libraries use YaST or zypper to install the JAVA
>> libraries and resolve dependencies.
>>
>> zypper search java
>>
>> if needed
>> zypper install non-oss-java-32bit
>
> Hmmm.
>
> gollem:/home/jan # zypper search java | grep 32 | devel_java-32bit
> | devel_java-32bit | pattern |
> java-1_5_0-gcj-compat-32bit | JPackage Runti-> |
> package | libreadline-java-32bit | Java
> Wrapper f-> | package | non_oss_java-32bit
> | non_oss_java-3-> | pattern
>
> Sofar, so good. Now it would be nice to know what this is going to do,
> so I typed
>
> gollem:/home/jan # zypper info -t pattern devel_java-32bit
> Reading installed packages...
>
>
> Information for pattern devel_java-32bit:
>
> Repository: openSUSE-11.0-Oss
> Name: devel_java-32bit
> Version: 11.0-110.3
> Arch: x86_64
> Vendor: SUSE LINUX Products GmbH, Nuernberg, Germany Installed: No
> Summary: devel_java-32bit
> Description:
>
> Contents: (empty)
>
> Could be better :-( Then
>
> gollem:/home/jan # zypper install -D -t pattern devel_java-32bit
> Reading installed packages...
>
> The following NEW pattern is going to be installed:
> devel_java-32bit
>
>
> No additional space will be used or freed after the operation.
> Continue? [YES/no]:
>
> That is getting weird. I guess it should use space!? No matter what I
> enter on the prompt (return, y, Y, YES), it immediately returns. Same
> without -D.
>
> What do I miss? I also tried hard to find this pattern in the YaST
> software management, but I can't find it.
>
> Puzzled --- Jan

Really not sure what you tried to do. -D is the option to specify a
repository, and I don't know what is -t pattern.

Basics are you can still download whatever .rpm you think you need and
install it using rpm -Uvh java-1_6_0-sun-1.6.0.u6-8.1.i586.rpm or whatever.

Zypper and YaST just do a better job resolving dependencies. Likewise you
could install it to /usr/local/lib/

And I note the OpenSuse wiki on installing Java

http://en.opensuse.org/Installing_Sun's_Java_on_SUSE_Linux#Switching_betw een_two_different_Java_JREs_or_SDKs