Hello, I am new to mesa, and I am not sure if compiling issue could post here or not? I want to build xorg and follow this guide: <a href="http://www.x.org/wiki/Development/BuildingX">http://www.x.org/wiki/Development/BuildingX</a> but when I build mesa, It error at: ../../../include/EGL/eglplatform.h:84:22: error: X11/Xlib.h: No such file or directory ../../../include/EGL/eglplatform.h:85:23: error: X11/Xutil.h: No such file or directory and I also tried 7.8 and 7.8.1 are both stop at the same error, but I can compile 7.7.1 successfully. I google the message and find some hint here: <a href="http://www.mail-archive.com/blfs-dev@linuxfromscratch.org/msg09459.html">http://www.mail-archive.com/blfs-dev@linuxfromscratch.org/msg09459.html</a> By adding include dir to src/egl/main/Makefile, I can go on, But error on another file complain X11/Xlib.h: No such file or directory How could I fix this error? X11/Xlib.h: No such file or directory X11/Xutil.h: No such file or directory Thanks