File list of package libx11-dev in buster of architecture armhf
/usr/include/X11/ImUtil.h
/usr/include/X11/XKBlib.h
/usr/include/X11/Xcms.h
/usr/include/X11/Xlib.h
/usr/include/X11/XlibConf.h
/usr/include/X11/Xlibint.h
/usr/include/X11/Xlocale.h
/usr/include/X11/Xregion.h
/usr/include/X11/Xresource.h
/usr/include/X11/Xutil.h
/usr/include/X11/cursorfont.h
/usr/lib/arm-linux-gnueabihf/libX11.a
/usr/lib/arm-linux-gnueabihf/libX11.so
/usr/lib/arm-linux-gnueabihf/pkgconfig/x11.pc
/usr/share/doc/libx11-dev/changelog.Debian.gz
/usr/share/doc/libx11-dev/changelog.gz
/usr/share/doc/libx11-dev/copyright