No libraries in /usr/local/lib

neilcpp · 05-27-2014, 02:02 PM

Hi, a few years back Linux had certain libraries automatically in

Code:

/usr/local/lib

. I am using Debian Wheezy. When I look in that directory it is empty, except for two folders named python2.6 & 2.7.

I need to have the following in usr/local/lib:

Code:

/usr/local/lib/libX11.a
/usr/local/lib/pthread.a
/usr/local/lib/libX11.so
/usr/local/lib/libX11-xcb.a
/usr/local/lib/libX11-xcb.so

I cannot seem to find these libraries anywhere on my system. I read somewhere that now you have to build them yourself.

My questions are:

1. Where do I find these libraries or is it correct that I would have to build them myself.
2. If I do have to compile them myself, how do I go about doing that - I have never had to compile system files like this before?

Thanks in advance.

ruario · 05-27-2014, 02:30 PM

No Linux distro that I am aware of uses /usr/local/lib to store libs. /usr/local/ is typically used for extra software outside of the native package management system. You the user might put stuff there but the distro will not.

Use apt-file to find out which packages provide libX11.a, pthread.a, libX11.so, libX11-xcb.a and libX11-xcb.so.

neilcpp · 05-27-2014, 02:48 PM

Quote:

Originally Posted by ruario

No Linux distro that I am aware of uses /usr/local/lib to store libs. /usr/local/ is typically used for extra software outside of the native package management system. You the user might put stuff there but the distro will not.

Use apt-file to find out which packages provide libX11.a, pthread.a, libX11.so, libX11-xcb.a and libX11-xcb.so.

Ok thanks - Could you say what the correct path to these files would be then?
I could be confusing Linux with FreeBSD.

rokytnji · 05-27-2014, 03:08 PM

Proabably /usr/lib

Edit: Forgot to say. I use mlocate to find location of libraries in linux after a install.

ruario · 05-27-2014, 03:17 PM

Yep, you are thinking of FreeBSD. There only the core of the OS uses /lib and /usr/lib, everything else would go to /usr/local/lib.

Regarding the path, that is difficult for me to say without some research, since I don't really use Debian these days and do not have an install close to hand right now. It would have been /usr/lib but with more recent Debian it will likely have switched to /usr/lib/i386-linux-gnu/ or /usr/lib/x86_64-linux-gnu/ depending on architecture. However, unless you installed the various -dev packages (e.g. libx11-dev) these files will not be present. This is why I suggested using apt-file to locate the packages and install them first.