Thanks for telling us a fix for the PTY problem. We will probably make an Emacs 20.7 release with a fix for this; but first we need to get legal papers for the changes. That is no problem for the changes written by Gerd, but who are the authors of the rest, and how can we contact them? I'd like to ask you to do one other thing for us--a matter of terminology. Affected systems: Linux (both libc and glibc) Linux is the kernel; the system as a whole is basically the GNU operating system. We're the system's principal developer; would you please give us a share of the credit, by calling the system "GNU/Linux"? The GNU Project was the principal developer of this system, so it seems fair to give us at least an equal share of the current. Note that all versions of GNU/Linux use a version of GNU libc. The so-called "Linux libc" was a modified version of GNU libc version 1. This is another example of how we don't get credit for our work because people call it "Linux". See http://www.gnu.org/gnu/linux-and-gnu.html for more explanation.