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How to install 32-bit version of libstdc++.so.6 on a 64 bit machine

rated 0 times [ 3] [ 0] / answers: 1 / hits: 87867 / 2 Years ago, fri, august 19, 2022, 3:48:56

I need to install the 32-bit version of libstdc++.so.6 on a 64 bit Ubuntu 8.04.2 server.

when i tried apt-get install ia32-libs, it says

root@devserver:~/downloads# apt-get install ia32-libs

Reading package lists... Done

Building dependency tree

Reading state information... Done

ia32-libs is already the newest version.

0 upgraded, 0 newly installed, 0 to remove and 133 not upgraded.

But when i tried to enable a PHP extension (libpdf_php.so), which uses this runtime library following error is logged in php error log.

root@devserver:~/downloads# cat /var/log/apache2/php_error.log

[01-Nov-2011 16:54:09] PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php5/20060613/libpdf_php.so' - /usr/lib/php5/20060613/libpdf_php.so: wrong ELF class: ELFCLASS32 in Unknown on line 0

root@devserver:~/downloads#

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taigysel

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3 Years ago

answered 2 Years ago aciousoun · Accepted Answer

What makes you think you need a 32-bit version of libstdc++.so.6?

64-bit Ubuntu runs 64-bit Apache which runs 64-bit PHP which it seems can't load 32-bit libpdf_php.so, which it tells you in the error message.

It's unlikely that installing ia32-libs will solve the problem - I would say you need 64-bit version of libpdf_php.so

It looks like pdflib's website has a separate download for x86-64 architecture - I downloaded the archive and the .so file inside it is definitely 64-bit.