bug#9839: compile with gdb running

[Glenn Morris]

Please don't cross-post to the help and bug lists, just pick one.
Hopefully I have managed to arrange it so that your report only appears
on the bug list.

Here is the report so that others can see it:

    I am using emacs pretest on GNU/Linux. I stumbled upon an interesting
    behaviour today. How to reproduce:

    emacs -q
    M-x gdb RET ls RET
    r
    # at this point gdb is starting ls
    M-x compile RET

    The compile buffer pops up, but there is not the 

    "make: *** No targets specified and no makefile found.  Stop.
    Compilation exited abnormally ..."-

    output.

    Is this a bug? If so, how can I work around it?