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revision 1.30 by rms, Wed May 28 11:42:35 2003 UTC revision 1.31 by rms, Mon Jul 7 20:43:33 2003 UTC
# Line 102  non-@code{nil} value, then the compilati Line 102  non-@code{nil} value, then the compilati
102  follow output as it comes in.  follow output as it comes in.
103    
104  @findex kill-compilation  @findex kill-compilation
105    To kill the compilation process, do @kbd{M-x kill-compilation}.  When    When the compiler process terminates, for whatever reason, the mode
106  the compiler process terminates, the mode line of the  line of the @samp{*compilation*} buffer changes to say @samp{signal}
107  @samp{*compilation*} buffer changes to say @samp{signal} instead of  instead of @samp{run}.  Starting a new compilation also kills any
108  @samp{run}.  Starting a new compilation also kills any running  running compilation, as only one can exist at any time.  However,
109  compilation, as only one can exist at any time.  However, @kbd{M-x  @kbd{M-x compile} asks for confirmation before actually killing a
110  compile} asks for confirmation before actually killing a compilation  compilation that is running.  You can also kill the compilation
111  that is running.  process with @kbd{M-x kill-compilation}.
112    
113  @findex recompile  @findex recompile
114    To rerun the last compilation with the same command, type @kbd{M-x    To rerun the last compilation with the same command, type @kbd{M-x
115  recompile}.  This automatically reuses the compilation command from the  recompile}.  This automatically reuses the compilation command from the
116  last invocation of @kbd{M-x compile}.  last invocation of @kbd{M-x compile}.
117    
118    Emacs does not expect a compiler to launch asynchronous    Emacs does not expect a compiler process to launch asynchronous
119  subprocesses; if it does, and they keep running after the main  subprocesses; if it does, and they keep running after the main
120  compiler process has terminated, their output may not arrive in Emacs.  compiler process has terminated, Emacs may kill them or their output
121    may not arrive in Emacs.  To avoid this problem, make the main process
122    wait for its subprocesses to finish.  In a shell script, you can do this
123    using @samp{$!} and @samp{wait}, like this:
124    
125    @example
126    (sleep 10; echo 2nd)& pid=$!  # @r{Record pid of subprocess}
127    echo first message
128    wait $pid                     # @r{Wait for subprocess}
129    @end example
130    
131  @node Grep Searching  @node Grep Searching
132  @section Searching with Grep under Emacs  @section Searching with Grep under Emacs

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