Greetings all:

I know this has been asked a million times, but I just can't seem to get a hit with various Google searches. Sorry.

Okay, so I need to get the XTest library headers onto my computer so I can compile an outside package. Specifically I need XTest.h. I know how to figure out which package owns XTest.h once it's installed (dpkg -S XTest.h), but how the heck can I figure out which package contains that file if it's not yet installed?

FWIW, after a while I figured out that file by looking at a machine where it was already installed - but it sure seems like there would be an easy way to find it. I tried:

apt-cache search XTest.h <- No hits
apt-cache search XTest <- Several hits, none have the header files


Can someone give me a hint? Maybe point to a tutorial or man page?

TIA

This on a Ubuntu 8.04 LTS. It can search for files provided both by installed and not-installed packages.

Hello,

A utility I use pretty often is apt-file. Install it with
After installation run
and you're ready to search.
The search for your file gave me following result
The last line indicates that the package you need is x11proto-xext-dev.

Kind regards,

Eric

Colucix beat me to it.

Install apt-file

No no... don't break the wall... nevertheless your post were more informative than mine...

thank you so much, I feel a lot better now, aside from the headache

Wow! Thanks everyone! I subscribed to this thread and hadn't even gotten a notification yet.

I knew I had to be missing something easy.

Hi there

Glad you found your solution!

For your information, every thread you post into, gets added to your subscribed-threads list, but you won't necessarily get any notifications unless you specifically make it so via your user profile, or by manually selecting "Email Notification" on a given thread.

If you DO want email notification, just enable it in your profile. Note that notifications may lag behind actual posts, depending on server load and other factors.

Again, good to see you have your answer -- and if you like, you can mark your thread [solved] by using the "Thread Tools" drop-down menu at the top

Regards,
Sasha

Oh, thanks. I went to subscribe to this page and found that I was already subscribed. Not surprising considering that I started the thread. I didn't realize or notice that I had to add email notifications to the subscription.

On a side note, I notice that the icon next to my post shows Windows. I went offline and changed my user agent. It kind of looks bad posting here with that darn icon.

[EDIT]Hmm, still shows Windows. Oh well, I must have missed something.

No it doesn't
If you want you can disable the icon in your profile

That would be the new feature which is in testing stage. I have also noticed what you have, even after you edit your post using different OS then the one you've used when you first made your post or if you change UA in your browser, (disribution) icon won't change. I guess if this feature will be implemented that that will be fixed.

You can look for the thread about it in the LQ Feedback and suggestions forum.

this has proved to be very useful.

many times i have wondered how to search debian packages using apt/aptitude to find what package provides which files. the package site is what i have had to rely on. it has to be said it does the business.

need to remember to run apt-file update