patch-cksum.sh: fixed to not use an absolute path while creating a cksum patch

lib/sde-package/patch-cksum.sh

@@ -3,7 +3,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: lib/sde-package/patch-cksum.sh
-# Copyright (C) 2006 - 2007 The OpenSDE Project
+# Copyright (C) 2006 - 2011 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2003 Clifford Wolf
 #
@@ -64,7 +64,9 @@ cksum_file() {
 	return -1
     fi
 
-    cp $1 /tmp/$$
+    local tmpdir="tmp/patch-cksum"
+    mkdir -p $tmpdir
+    cp $1 $tmpdir/$$
     eval "egrep -v '^#' $1 | $has_D" | while read cksum file url args; do
 	[ "$cksum" = 'X' ] && continue
 	[ "$cksum" != '0' -a "$override" = '0' ] && continue
@@ -85,11 +87,11 @@ cksum_file() {
 	    echo "!!! Checksum of $file changed (was $cksum)." >&2
 	fi
 
-	eval "sed \"$sedscript\" -i /tmp/$$"
+	eval "sed \"$sedscript\" -i $tmpdir/$$"
     done
 
-    diff -u ./$1 /tmp/$$
-    rm -f /tmp/$$
+    diff -u ./$1 ./$tmpdir/$$
+    rm -f $tmpdir/$$
 }
 
 for f in $files; do