missing X11.h


I tried to compile the X11 application. but don’t know where to find X11.h.
I have already had Xphoton installed. Did I miss soemthing?


No sign of that file on my system, but I did find /opt/X11R6/include/X11/X.h, maybe that is what you need.

you are right, it is /opt/X11R6/include/X11/X.h, I wonder why I cannot find directory /opt/X11R6/include/X11/,
but I have /opt/X11R6/lib/ and /opt/X11R6/bin

If you don’t have that, I’m guessing you have not installed the development stuff off the repository, only the libs/binaries.

I only have /opt/X11R6/lib . How to gain src. hehe

//the version:6.3.0