freebsd-dev/contrib/gcc/move-if-change

#!/bin/sh
# Like mv $1 $2, but if the files are the same, just delete $1.
# Status is 0 if $2 is changed, 1 otherwise.
if
test -r $2
then
if
cmp -s $1 $2
then
echo $2 is unchanged
rm -f $1
else
mv -f $1 $2
fi
else
mv -f $1 $2
fi
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code. 1996-09-18 05:35:50 +00:00			`#!/bin/sh`
Gcc 3.2.1 release virgin vendor import. (19-Nov-2002) 2002-12-04 15:42:16 +00:00			`# Like mv $1 $2, but if the files are the same, just delete $1.`
			`# Status is 0 if $2 is changed, 1 otherwise.`
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code. 1996-09-18 05:35:50 +00:00			`if`
			`test -r $2`
			`then`
			`if`
Gcc 3.2.1 release virgin vendor import. (19-Nov-2002) 2002-12-04 15:42:16 +00:00			`cmp -s $1 $2`
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code. 1996-09-18 05:35:50 +00:00			`then`
			`echo $2 is unchanged`
			`rm -f $1`
			`else`
			`mv -f $1 $2`
			`fi`
			`else`
			`mv -f $1 $2`
			`fi`