[Bug 987502] Re: libxml2-dev: /usr/bin/xml2-config isn't identical across all arch

[Darko Lombardo]

Hi Andrew.

I do not think your issue is related to this bug at all.

As a user you probably have no need for a libxml2-dev package, only
libxml2.

I posted notes in reference to this bug due to a deliberate request by the user 
(developer) for libxml2-dev:i386 on a 64-bit Ubuntu, which is not something 
users are likely to try to install.
Like said before, both versions of the library are needed if one needs multiple 
architecture building option on a 64-bit Ubuntu.

Regarding your problem it is hard to say from the posted information, but more 
of an apt (Update Manager) issue than libxml2 package issue.
I have seen your message sometimes:
- (maybe) command was not called with 'sudo'
- running out of space on HDD partition
- broken/damaged package

Try to call 'sudo apt-get update' and restart the Update Manager (or the 
system).
Then retry to upgrade again using the Update Manager.

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Title:
  libxml2-dev: /usr/bin/xml2-config isn't identical across all arch

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[Bug 987502] Re: libxml2-dev: /usr/bin/xml2-config isn't identical across all arch

[Darko Lombardo]

Hi Andrew.

Generally, both versions of the library are needed if one needs multi
architecture building option (e.g. x86_64 native build and i386
backsupport (cross)build for 32-bit installations).

I am building my i386 and x86_64 application on Ubuntu 12.04.3 LTS using -m32 
and -m64 gcc options.
But running only 64-bit version of the application locally for the matter.

To accomplish this I have done:

Firstly installed libxml2-dev (x86_64)
  sudo apt-get install libxml2-dev

Secondly, move problematic xml2-config
  sudo mv /usr/bin/xml2-config /usr/bin/xml2-config.x86_64

Then install libxml2-dev:i386
  sudo apt-get install libxml2-dev:i386

Rename xml2-config for i386
  sudo mv /usr/bin/xml2-config /usr/bin/xml2-config.i386

Restore x86_64 xml2-config
  sudo cp /usr/bin/xml2-config.x86_64 /usr/bin/xml2-config

Finally, had to call ldconfig to refresh the library paths and gcc
builds my application with -m32 and excplicit -m64 (although not
needed).


ldconfig reports:
$ ldconfig -p | grep xml2
libxml2.so.2 (libc6,x86-64) = /usr/lib/x86_64-linux-gnu/libxml2.so.2
libxml2.so.2 (libc6) = /usr/lib/i386-linux-gnu/libxml2.so.2
libxml2.so (libc6,x86-64) = /usr/lib/x86_64-linux-gnu/libxml2.so

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https://bugs.launchpad.net/bugs/987502

Title:
  libxml2-dev: /usr/bin/xml2-config isn't identical across all arch

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