screen(1) crashes plus weird output for screen -ls

[Ralf Wenk]

Hi,

the optimizations made by the current Clang seems to be the cause.

Without optimization (-O0) "screen -ls" shows the expected

  There is a screen on:
          43597.pts-0.raspberry-pi        (Detached)
  1 Socket in /tmp/screens/S-root.

With the first optimization level (-O1) I get

  There is a screen on:
          43597.pts-0.raspberry-pi        (Detached)
  120984 Socketõÿ¿lå in .

and with -O2

  There is a screen on:
          43597.pts-0.raspberry-pi        (Detached)
  -1073746696 Socket
                    Ð á in õÿ¿8è.


Ralf