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authorpeter <peter@FreeBSD.org>1996-09-18 05:35:50 +0000
committerpeter <peter@FreeBSD.org>1996-09-18 05:35:50 +0000
commitd4691e641ba47cb86eef80f5c879e13f9d961724 (patch)
tree5b7ea73fc49c8998d9dc87d3eeff5b96439e6856 /contrib/gcc/move-if-change
downloadFreeBSD-src-d4691e641ba47cb86eef80f5c879e13f9d961724.zip
FreeBSD-src-d4691e641ba47cb86eef80f5c879e13f9d961724.tar.gz
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.
Diffstat (limited to 'contrib/gcc/move-if-change')
-rwxr-xr-xcontrib/gcc/move-if-change17
1 files changed, 17 insertions, 0 deletions
diff --git a/contrib/gcc/move-if-change b/contrib/gcc/move-if-change
new file mode 100755
index 0000000..66d8b8a
--- /dev/null
+++ b/contrib/gcc/move-if-change
@@ -0,0 +1,17 @@
+#!/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
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