X11/Xlib.H Not Found in Ubuntu

X11/Xlib.h not found in Ubuntu

A quick search using...

apt search Xlib.h

Turns up the package libx11-dev but you shouldn't need this for pure OpenGL programming. What tutorial are you using?

You can add Xlib.h to your system by running the following...

sudo apt install libx11-dev

Ubuntu 16.04: fatal error: X11/Xlib.h: No such file or directory

anaconda has its own environment, which by default usually lacks X11 headers(e.g libx11-dev, or whatever you call it). Try "conda install -c conda-forge xorg-libx11" . It worked for me when a certain R-package threw an error "X11/Xlib.h : No such file or directory".

After installing libx11-dev I am not able to find Xlib.h

I don't know anything about netbeans, but: you can find out what's in a package installed on your system with the command

dpkg -L <name of package>

When I do this on an Ubuntu system I have access too, it indicates that libx11-dev is supposed to include the file /usr/include/X11/Xlib.h. However, this does not tell you if the file actually exists. You need something like the find commands you were trying for that.

Now, your find commands didn't do anything because find has a command line syntax that's different from everything else. This is how to do what you were trying to do with find:

find / -name Xlib.h -print
find / -name X11 -print

(On recent systems with GNU userland (i.e. all Linux and some others), the trailing -print is not necessary, but on older systems and possibly also those that retain more of a BSD heritage, it is. I learned my shell back in the bad old days of SunOS 4 and I still have those habits.)

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