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From: martin%EASBY.DURHAM.AC.UK@MITVMA.MIT.EDU (Martin Ward)
Newsgroups: gnu.utils.bug
Subject: Problem with make-3.57
Message-ID: <5000.9001241151@easby.durham.ac.uk>
Date: 24 Jan 90 11:51:44 GMT
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I have found a problem with make version 3.57 using the '-j' option.
When compiling gcc (or g++) which uses the shell script "move-if-change"
the make program doesn't appear to realise that the script has
terminated so it "hangs" waiting for the termination of a process
which has already terminated. Running "make" without the -j
option  doesen't cause any problems. This is with gcc-1.36, though I
suspect that other versions of gcc and g++ will have the same effect.
Here's what move-if-change says:

#!/bin/sh
if
test -r $2
then
if
cmp $1 $2 > /dev/null
then
echo $2 is unchanged
rm $1
else
mv $1 $2
fi
else
mv $1 $2
fi


If you can't reproduce the problem I will try and provide a smaller example!

			Martin.

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